CN108251135A - The method of pyrolysis and special pyrolysis system - Google Patents
The method of pyrolysis and special pyrolysis system Download PDFInfo
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 352
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- 239000002028 Biomass Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 14
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims abstract description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 73
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- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to the method for pyrolysis and the special pyrolysis systems of implementation this method.The method for pyrolysis of the existing material containing organic matter, pyrolysis rate, pyrolysis are less efficient, and pyrolysis liquids yield is relatively low, and pyrolysis plant size is big, cost is high, maximum operating temperature is high, equipment poor durability.The present invention proposes a kind of new method for pyrolysis, and using silicon carbon compound, 10~30 times of efficiency of heating surface raising, pyrolysis efficiency increase substantially as thermophore, flashing speed oven can be achieved, pyrolysis liquids yield is high, and output object value is high, is particularly suitable for the pyrolysis of biomass.Implement the special pyrolysis system of the method for the present invention, have many advantages, such as that Miniaturizable, maximum operating temperature are low, production efficiency is high, equipment manufacturing cost is low, durable.
Description
Technical field
The present invention relates to pyrolytic technique field, particularly a kind of high efficiency, the high speed heat containing organic matter material of high production
Solution method and the special pyrolysis system for realizing this method.
Background technology
Pyrolysis, also known as thermal cracking are under not oxygen-containing, anoxybiotic or the atmospheric condition of anoxic, and heating contains organic matter
Raw material, organic matter macromolecular therein is made to be decomposed into the process compared with small molecule.These are usually flammable compared with the ingredient of small molecule
Gas or liquid and carbon simple substance, can be used as fuel or industrial chemicals.When the temperature of pyrolysis is higher, also referred to as " high temperature
Cracking ".
Solid waste, coal and the biomass related with mankind's activity is often organic containing more complicated component
The method disposition or processing of pyrolysis can be used in matter ingredient.Include biomass, solid waste, coal etc. in recent years containing organic
The pyrolysis disposition and processing of the raw material of matter are paid attention to as the energy manufacturing technology with potential application foreground.Both at home and abroad
Numerous related pyrolytic techniques has been disclosed and establishes experiment or industrialized application apparatus.For example, Chinese patent
CN99811493、CN200610014998、CN200680015682 、CN200910266270 、CN201310421699、
CN201410169770, United States Patent (USP) US4448589, US4848249, US 4865625, US5678496, US7878131,
Treatment technology and its application field disclosed in US8420875 etc..These disclosed technologies and its application range are also partly opened up
The technical field or its application field of the present invention are shown.
Pyrolytic process is endothermic process, and liter mild pyrolysis needs a large amount of heat, and a large amount of heat is needed as far as possible
It is passed in the short time and treats pyrolysis feed.How necessary heat within the desired time to be passed to and treat pyrolysis feed, be
The significant challenge that high-efficiency thermal decomposition technology faces.Biomass, the biomass especially mixed are that have containing a variety of height are heterogeneous
The complex mixture or composition of machine material, since complicated component, composition variations are high, geometric shape is highly non-uniform,
The pyrolysis easy degree of heterogeneity is very different, and the diabatic process control difficulty of pyrolysis is larger.
In general, using heat transfer medium or thermophore, to treating that pyrolysis feed heat transfer is that the pyrolysis more generally selected is conducted heat
Technology path, wherein gas, solid heat transfer medium use more.Using gas as a heat transfer medium, due to gas volume heat
Capacity is low, and a large amount of high-temperature gases that hundreds of thousands of times of volume treats pyrolysis feed is needed to provide heat, and high-temperature gas often exists
Contact makes to treat pyrolysis feed superficial charring rapidly, generates the thermal decomposition product of low value after pyrolysis feed particle surface（Carbon）, and
And carbon forms thermal insulation layer in particle surface so that pyrolysis can not be deep into inside feed particles, pyrolysis rate is caused to decline, efficiency
Reduction, product value are low.Using the gas thermophore of very high temperature as the heat transfer medium being pyrolyzed, control difficulty is also brought
Equipment corrosion increases substantially in the increase and operation of increase and equipment investment.Using common solid thermal medium, such as sand
Or quartz sand, aluminum oxide sand, magnesium oxide sand, pyrolysis lime-ash, conventional ceramic ball, however it remains thermal capacity is low, heat exchange heat transfer is slow,
The factors such as efficiency is low, are difficult to realize " flashing speed oven ", limit the raising of pyrolysis rate, the increase of efficiency and output object in practice
Value improve；Also, the reheating of quartz sand, aluminum oxide sand, lime-ash, Ceramic Balls etc. takes longer, heating or heat exchange effect
The problems such as rate is relatively low seriously constrains the sustainability of pyrolytic reaction and the whole thermal efficiency of pyrolysis.
For example, municipal waste is converted into fuel gas by a kind of be pyrolyzed by heat absorption that United States Patent (USP) 3,853,498 proposes
System, the system using two fluid beds containing sand and between two beds transmission sand device：In a bed, sand leads to
It crosses exothermic combustion reaction to be heated, in another fluid bed, the sand of heating is for pyrolytic reaction of absorbing heat.This system is so far
It only there are no successful commercial use.For global range, at present, solid waste, biomass, coal including municipal waste etc.
The pyrolysis way disposition of material containing organic matter, is still difficult to promote and apply, can not substitute direct incineration disposal or burning, although
The latter brings huge Environmental Risk or pollution.
Invention content
An object of the present invention is to provide a kind of high efficiency, the material containing organic matter of high value output, including biology
The high speed method for pyrolysis or high speed pyrolysis process method of matter and the pyrolysis system for realizing this method.
A kind of method for pyrolysis according to the present invention, including at least step：Solid thermophore is heated to the first higher temperature
Degree；By the solid thermophore of the first higher temperature and relatively low second temperature containing can pyrolysis component material in pyrolysis zone
Domain comes close to or in contact with, make in material can pyrolysis component obtain heat and be pyrolyzed, generate condensable and uncondensable combustibility
Gas and pyrolysis product, it is characterized in that, the solid thermophore includes silicon carbon compound, i.e. silicon carbide
（SiC）.
The above-mentioned material containing organic matter according to the present invention（Hereinafter referred to as " treat pyrolytic material "）Method for pyrolysis, described consolidates
Body thermophore by being in direct contact or close to treating pyrolytic material, by heat be transmitted to it is described treat pyrolytic material, make its pyrolysis.Its
In, the example being in direct contact is contacted including at least making solid thermophore in pyrolysis zone and treating pyrolytic material directly mixing,
It is preferred that using granular solid thermophore and/or treat pyrolytic material.Wherein the example of " close " is including the use of air flow press molding
The solid thermophore of ground hybrid particles shape and treat pyrolytic material；It is granular described or under certain atmosphere
Solid thermophore and treat that pyrolytic material is densely converged in the same space close to each other while with arbitrary initial velocity
Free-falling is fallen along some load-bearing surface.In the above example, although the solid thermophore and treating pyrolytic material
It is not in direct contact, still can be realized soon for the heat transfer of medium by its circumgranular gas flowing and load-bearing surface
Speed heat transfer.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore containing silicon carbide,
In silicon carbide as the present invention method for pyrolysis main thermophore, it is higher that content preferably occupies all solids thermophore
Weight ratio, such as in the case where not considering inevitable impurity, carborundum content is 90~100%；Less preferred side
Carborundum content is more than 50% in case, such as 50~98%；However, in the heat transfer, reheating and the pyrolysis effect that do not consider thermophore
In the case that rate deteriorates, the scheme of the silicon carbide ratios less than 50% is also alternatively, for example, silicon carbide in thermophore
Ratio is higher than the arbitrary proportion between 5~10%, such as 10~50%.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore containing silicon carbide, also
Pyrolysis catalysts, harmful components absorbent, anti-polymerizer, resist melt agent, lubricant, filler etc. can be included, for example, containing
There are carbonate and oxide of calcium, magnesium and barium and combinations thereof, transition metal oxide, zinc oxide, sodium hydroxide, white clouds
Stone, lime stone and marble, quartz sand or silica, graphite or carbon, Ceramic Balls or ceramic particle, molecular sieve, bentonite etc..
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, for pyrolysis is enable continuously to carry out, to carry
For being adapted to the efficiency needs of industrialization pyrolysis processing, also comprising the solid thermophore after being pyrolyzed and thermal decomposition product point
From the step of and the step of the solid thermophore after separation is heated to first temperature.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, also comprising step：It is described treat pyrolytic material and
Solid thermophore contacts in pyrolysis zone or after, because the solid thermophore of high temperature treats that pyrolytic material conducts heat to low temperature, with
And the high capacity of heat transfer that silicon carbide has as thermophore, and make solid thermophore quickly and treat that pyrolytic material reaches or approaches
Heat exchange balances, this treats that the temperature of pyrolytic material pyrolysis residue, solid thermophore and pyrolysis product reaches or approaches
Unanimously, pyrolysis is completed or is nearly completed simultaneously, at this point, by the pyrolysis residue, solid thermophore and pyrolysis product three
In at least arbitrary two kinds or all, in a relatively short period of time, such as within 30 seconds, within preferably 15 seconds, and further preferably
Within 5 seconds, the pyrolysis zone is continually or intermittently removed.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore and pyrolysis residue are consolidated
Screening, air-flow separation and other conventional separation methods may be used in the separation of body thermal decomposition product.Due to the material to be pyrolyzed of the present invention
The pyrolysis residue of pyrolysis and pyrolysis product usually have smaller size or density or in dust-likes material at a high speed, take suitable
When size grained silicon carbide as the present invention solid thermophore silicon carbide, can relatively easily using screening or air-flow
The conventional separation methods such as separation or vibration aerating flow separation or fluidization separation separate.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore are detached with thermal decomposition product
Reheating afterwards, the method that can select In Situ Heating can also be transported to heating unit or reheat region and be heated；Its
Heating means can be as needed using directly heating, indirectly heat or added using the conductive characteristic direct-electrifying of silicon carbide
Heat.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore are detached with thermal decomposition product
In Situ Heating afterwards preferably carries out electrified regulation in pyrolysis zone.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore are detached with thermal decomposition product
Directly heating afterwards, including the method that for example high temperature heat source body is in direct contact and heats solid thermophore, may be used high temperature and consolidates
Body or high-temperature fusant directly heat, and high-temperature gas can also be used to heat, wherein, when being heated using high-temperature gas, preferably adopt
It is heated with non-oxidizable high-temperature gas and preferably using fluidization.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore are detached with thermal decomposition product
Indirectly heat afterwards includes the use of method of the high temperature heat source body by heat carrier indirect heat transfer to solid thermophore.Indirectly heat
It is preferred that the method using dividing wall type indirectly heat；And the heat carrier indirectly heat with inclined load-bearing surface is preferably used,
In, solid thermophore because its own gravity or momentum can slide in the inclined load-bearing surface of the heat carrier, contact due to it is real simultaneously
It now conveys and heats.This conveying, mode of heating can save energy consumption.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore add in pyrolysis zone and again
One or more supporting body carrying with inclined load-bearing surface may be used in conveying between in thermal region or both
Solid thermophore so that granular solids thermophore can be moved because of the gravity and/or momentum of its own in load-bearing surface.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore are transmitting pyrolysis heat
Afterwards, wherein at least a part pyrolysis zone can individually will be transferred out, and will wait to be pyrolyzed through optional cooling step and third temperature
Material is mixed or close, and make third temperature treats pyrolytic material heating and/or pyrolysis, wherein, the third temperature is low
In second temperature.The method for pyrolysis can utilize solid thermophore realization when conducting heat because being pyrolyzed after cooling to treat the pre- of pyrolytic material
Pre- pyrolysis under heat or lower temperature can make the pyrolysis of subsequent higher temperature quickly realize or realize selectivity
Pyrolysis.
Burning may be used in the above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the solid thermophore silicon carbide
The ceramic silicon carbide of knot, such as carborundum plate, piece, block can also use granular silicon carbide or crystal silicon carbide or adopt
With powder silicon carbide.Wherein, its particle size of granular silicon carbide preferably 0.01 ~ 20mm, and further preferred 0.3 ~ 3mm.
Wherein, the particle size can be the average value of the maximum outside diameter of particle or the average diameter of particle.Smaller particle
Size can increase the gross area of thermophore silicon carbide, improve its heat transfer and the efficiency reheated.The silicon carbide may be used
Green silicon carbide, black silicon carbide or other silicon carbide.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, described treats that pyrolytic material can be direct with original shape state
Pyrolysis, is pyrolyzed again after can also being processed into arbitrary shape or graininess.Particle size can use 0.01 ~ 100mm, and preferably 0.3 ~
10mm.Smaller particle size can increase the gross area, improve its heat transfer and the efficiency reheated.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, described treats that pyrolytic material can pass through appropriate compacting
It is pyrolyzed again afterwards, such as is compacted post-processing and is compacted, then be pyrolyzed into the particle of appropriate size or after being processed into the particle of appropriate size.
Compacting can be implemented, such as to be pyrolyzed using the pressure compaction of auger conveyor when pyrolytic material is delivered to pyrolysis zone
Treat pyrolytic material particle.It treats that pyrolytic material can improve the efficiency of its heat transfer after compacting, improves the uniformity of pyrolysis.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the first higher temperature of the solid thermophore exist
Between 500 ~ 1400 DEG C, preferably 550 ~ 900 DEG C.The relatively low second temperature for treating pyrolytic material can be in room temperature ~ 450 DEG C
Between, preferably 70 ~ 400 DEG C, further preferred 100~380 DEG C, and further preferred 260~360 DEG C or 290~330 DEG C.
The initial temperature for treating pyrolytic material is as third temperature.It treats that pyrolytic material is directly pyrolyzed to pre-dry, usually selects
Room temperature is as the second temperature and third temperature.Pyrolytic material is treated just through being dried, temperature can be on 70~130 DEG C of left sides
At this moment the right side can be directly pyrolyzed without cooling, which also can be as the third temperature for treating pyrolytic material described in the method for the present invention.
It treats that pyrolytic material can be warming up to 100~400 DEG C by preheating or pre- pyrolysis, can also be used as and treated described in the method for the present invention
The second temperature of pyrolytic material.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention can be used desuperheated solid during being pyrolyzed and carry
The hot body heating relatively low third temperature treats that pyrolytic material is warming up to higher second temperature.
The above-mentioned pyrolysis method of disposal for treating pyrolytic material according to the present invention, the solid thermophore and treats pyrolytic material
The temperature that reaches is pyrolysis temperature after heat transfer is completed in mixing, as heat transfer and the equilibrium temperature of pyrolytic process, can 400~
Between 1100 DEG C, preferably 450~700 DEG C or according to it is different treat pyrolytic material type and determining preferred pyrolysis temperature.Example
Such as, the preferred pyrolysis temperature of common stalk is 450~480 DEG C, and the preferred pyrolysis temperature of humus is 420~460 DEG C, rice husk
It is preferred that pyrolysis temperature is 460~500 DEG C, 600~900 DEG C of the preferred pyrolysis temperature of tar, the preferred pyrolysis temperature 480 of coal~
550℃.When pyrolysis temperature is higher, such as when being close to or higher than 700 DEG C, method for pyrolysis of the invention is also referred to as " high anneal crack
Solution " method.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, the first higher temperature of the solid thermophore and
Difference between pyrolysis temperature is preferably taken less than 300 DEG C, even more preferably below 200 DEG C, even more preferably below 100 DEG C, example
Such as take 80 DEG C.The relatively low temperature difference can reduce the high temperature resistant requirement of pyrolysis plant, and reduce and treat pyrolytic material thermal decomposition product
Carbon ratio example.
The method for pyrolysis for treating pyrolytic material according to the method for the present invention, can be continuous method for pyrolysis or
Disconnected method for pyrolysis.It continuously provides and treats pyrolytic material, higher temperature is continuously provided（First temperature）Solid thermophore, even
Continuous ground will treat that pyrolytic material and solid thermophore mix, in pyrolysis zone continuously by thermal decomposition product and pyrolysis residue
And/or solid thermophore is removed from pyrolysis zone, and the continuous pyrolysis for treating pyrolytic material can be realized using these steps.Discontinuously carry
For treating pyrolytic material, after the completion of that waits to be provided treats pyrolytic material pyrolysis, then provide and new treat pyrolytic material matter, this pyrolysis side
Method may make up the method for pyrolysis of the interruption of the present invention.
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, described some examples for treating pyrolytic material include
（But it is not limited to）：Agricultural crop straw, as wheat straw, straw, the root, stem and leaf flowers and fruits seed of all kinds of plants, crop, grain, oil plant etc. add
The by-product of work such as bagasse, rice husk, corncob, vinasse, coconut husk, all kinds of shells, kind shell, melon-seed hull, pomace, the grain to go mouldy,
Spoil, forest by-product such as sawdust, branches and leaves and other biological material, raw coal, reconstructed coal, lignite, gangue, life
Rubbish living（Such as application of city life garbage）, food waste, decoration rubbish, the industrial bio matter containing organic matter（Such as pharmaceutical factory, change
Plant wastes）, building containing organic matter and build waste（Such as it is bitumeniferous building or road waste object）, medical treatment it is useless
Gurry, means of agricultural production waste（Such as mulch, Seedling bag）, electric appliance and electron wastes, scrap rubber and damaged tire, waste plastics, spent resin,
Useless coating and adhesive, the residual oil or dregs of fat, waste oil, useless pitch, waste packing articles, waste paper, waste electric wire cable, sludge（It is such as useless
The sludge that water, sewage disposal generate）, excrement and the material being arbitrarily mixed to form of one of the above or multiple material.Wherein,
For the preferably aging house refuse of house refuse, the organic matter after relatively low moisture content characteristic and corruption is more easy to the spy of pyrolysis
Property can improve the efficiency and value of pyrolysis.Organic matter in biomass can be divided into natural and artificial synthesized two class of organic matter.
Natural organic matter, which includes at least, rubber, timber, paper, protein, starch, cellulose, straw, waste oil and sludge etc.,
Artificial synthesized includes at least plastics, synthetic rubber, synthetic fibers, binding agent, organic coating etc..It is mixed by the difference of these materials
The various biomass of composition of proportions are closed, method using the present invention is suitable for and makees pyrolysis disposition.
The method for pyrolysis according to the present invention for treating pyrolytic material, described treats pyrolytic material before pyrolysis, usually also optional
The processing step processing reorganized and outfit and/or pre-processed and used using other existing solid waste pyrolysis, is including but not limited to divided
Choosing, classification, broken, desalination, drying, over dry, classification, low temperature antichloration, low-temp desulfurization, defluorinate etc.；The pyrolysis production obtained after pyrolysis
Object can be refined through cooling, dedusting, refined, catalytic pyrolysis, be purified, dechlorination desulfurization, dehydration etc., to obtain vendible production
Product, such as liquid, gas and solid fuel, other solid products etc..
The above-mentioned method for pyrolysis for treating pyrolytic material according to the present invention, described treats pre- place of the pyrolytic material before pyrolysis
Reason may also include and treat that pyrolytic material is sorted and classified by described, including by solid waste be divided into two classes or two classes with
It is upper to be pyrolyzed respectively, for example, by categorized consumer waste be the light refuse that can be pyrolyzed and heavy rubbish be pyrolyzed respectively such as point
Choosing, which is classified as plastics, non-plastic class is pyrolyzed or sorts respectively, is classified as the lightweights such as inorganic refuse, plastics and textile fabric has
After the heavys organic solid waste such as machine rubbish, rubber and timber and humus, only pyrolysis has the various conventional biologies of matter rubbish, etc.
Matter sorting classification processing.Classification is pyrolyzed solid waste or biomass respectively, can reduce the complexity of thermal decomposition product, reduces subsequent processing
Cost.For example, waste plastics and humus are pyrolyzed respectively, the former bulk fluid product is gasoline, diesel component, the main liquid of the latter
Body product is bio oil or oxygen containing low heat value oil.
Method using the present invention, due to the high-termal conductivity of silicon carbide, high high temperature thermal capacitance, high density treats pyrolytic material
More uniform, thoroughly pyrolysis at a high speed, and the usage amount of thermophore can be reduced can be achieved, reduce the temperature of heat carrier；Carbonization
The excellent abrasiveness of silicon, which also promotes, to be treated the broken of pyrolytic material and improves pyrolysis ability in mixing and pyrolytic process.It is such as suitable
When size can be after the particle thermophore with the present invention be mixed in the proper ratio, shorter than 1 after pyrolytic material particle
Heat transfer is completed in second and simultaneously realizes pyrolysis, treats pyrolytic material particle heating rate more than 500 DEG C/s, even more than 1000 DEG C/s,
" flash " pyrolysis is realized in rapid pyrolysis, so as to fulfill high efficiency pyrolysis, the more thorough and higher liquid thermal decomposition product output of pyrolysis
Amount.In general, the liquid fuel market price is high, the earning capacity that higher proportion of liquid thermal decomposition product will improve pyrolysis disposition.Example
Such as, the thermophores such as generally use quartz sand, aluminium oxide, under the heat transfer temperature difference less than 100k, thermophore or pyrolysis feed need
It is broken into below 0.3mm particles and is likely to flashing speed oven, and method using the present invention, particle remain to flash heat in more than 1mm
Solution improves 10~30 times of heat transfer efficiency, greatly improves pyrolysis efficiency.Stability that silicon carbide has, thermal shock resistance, inoxidizability
And high rigidity, but also the service life of the thermophore of the present invention is longer, there is good economy.
The invention also provides a kind of pyrolysis dedicated system for the method for pyrolysis for implementing the above present invention, include at least one
A pyrolysis storehouse（Chamber）, described treats that pyrolytic material carries out heat exchange in the pyrolysis storehouse and thermophore and is pyrolyzed, wherein, the pyrolysis storehouse
Heated current is applied to described by the carrying position of interior thermophore at least provided with one group of electrode, when working for pyrolysis system
On thermophore, the electric current is set to pass through the silicon carbide of the thermophore to heat silicon carbide and and then heat thermophore or include
Other compositions.
The invention also provides another the pyrolysis dedicated system for the method for pyrolysis for implementing the above present invention, include at least
One thermophore heating cabinet（Chamber）Or position is reheated, the thermophore after pyrolysis exchanges heat is reheated herein,
In, the heating cabinet（Chamber）Or position is reheated at least provided with one group of electrode, for heated current to be applied to the heat-carrying
On body, electric current is made to pass through the silicon carbide of the thermophore heat silicon carbide and and then heat thermophore or have other into
Point.
The invention also provides another the pyrolysis dedicated system for the method for pyrolysis for implementing the above present invention, include at least
One is used to carry the heat-carrying during the thermophore after pyrolysis exchanges heat is conveyed or reheated
The supporting body of the load-bearing surface of body, wherein, the load-bearing surface is inclined surface, the thermophore or thermophore particle
The gravity and/or momentum of itself can be relied on（Or initial velocity）It is moved along the inclined load-bearing surface, it is defeated so as to fulfill its
It send and/or heats.The inclined surface can be plane or curved surface, such as with regularly or irregularly convex
It rises and concave curved surface, to adjust the feature of the feature of its movement or heat transfer.The deviation horizontal plane of the inclined surface
Angle of inclination can be used to the sliding speed for adjusting the thermophore or thermophore particle, the angle between 0~90 degree it
Between, preferably 25~65 degree, further preferred 33~45 degree.In the present invention, the roughness of the inclined surface is can adjust, is changed
The resistance of its movement to the thermophore or thermophore particle, so as to be adapted to its specific angle of inclination, with auxiliary
The movement speed of the adjustment thermophore or thermophore particle.
In method and dedicated system in the present invention, since the thermophore contains the very high carbonization of thermal conductivity factor
Silicon forms above-mentioned inclined surface using the heat carrier with good heat conductive ability, can be more square in thermophore moving process
Just it realizes the reheating of thermophore or cools.Thermophore after cooling can be used in the present invention to be waited to be pyrolyzed to described
Material is preheated or is pyrolyzed in advance.
The invention also provides another the pyrolysis dedicated system for the method for pyrolysis for implementing the above present invention, wherein, it forms
The pyrolysis storehouse of the pyrolysis system, thermophore heat the position contacted in position, thermophore transfer passage three with thermophore,
At least one includes carbofrax material, and thermophore can contact the carbofrax material during work.The pyrolysis system of the present invention, by
In the position formed containing the carbofrax material, there is very high thermal stability, wearability, high temperature thermal capacitance, high heat conductance, can drop
It is low to make heat carrier as main component during pyrolysis, conveying and reheating to the mill of the equipment of pyrolysis system using silicon carbide
Damage improves pyrolysis and heat transfer efficiency.
It is noted that in the pyrolysis of the present invention or cleavage method, the quick heating of pyrolytic material is treated to realize, it can be with
Auxiliary is using interior other heating means used in either existing pyrolysis or high temperature cracking method of burning, for example, using flammable
Gas directly pyrolysis storehouse or adjacent domain burning come heat treat pyrolytic material either directly combustion parts treat pyrolytic material or
High-temperature flue gas is passed through, directly heats and treats pyrolytic material, etc..But these householder methods often reduce pyrolysis gas product
Calorific value, and reduce the service life of pyrolysis plant and there may be dirts because of oxygen-containing gas is introduced into pyrolysis plant
Contaminate object such as bioxin, because rather than the present invention preferred scheme.
Method using the present invention, due to high thermal conductivity coefficient, the high heat capacity of solid thermophore used, heat transfer and pyrolysis can
Quickly complete, product or thermophore can remove rapidly pyrolysis zone, under identical pyrolysis flux, not only significantly improve pyrolysis
Efficiency reduces the dosage of solid thermophore, and the volume of pyrolysis system and its constitution equipment can more be greatly reduced, reduce cost,
And make pyrolysis system and device miniaturization, be miniaturizated to it is feasible.Meanwhile method of the invention is suitble to being pyrolyzed storehouse intermittent feeding
Intermittent pyrolysis and continuous feed continuous pyrolysis.Further, since density is high, heat transfer is fast, load can be also greatly reduced in the present invention
Heat exchange area needed for hot body heating, thus reduces pyrolysis system cost.
Specific embodiment
Embodiment 1, a kind of method for pyrolysis of stalk of the invention：Take 1 part of parts by weight through being dried and picking in addition to big
Part inanimate matter and other bulks and the stalk particle for being crushed to 0~3mm sizes, are placed in a preheating apparatus, use hot nitrogen
The second temperature that gas is preheating to 130 DEG C is spare；The silicon carbide of 18~25 parts of parts by weight of 0.8~2.2mm of grain size is taken, is added at one
550~570 DEG C of the first temperature is heated in thermal；By the silicon carbide after heating and the relatively low stalk of temperature to be pyrolyzed
Grain presses 18~25：1 flux ratio, with uniform flux（Flow）Quickly, a nitrogen atmosphere, heat preservation 450 are evenly sent into
In the pyrolysis storehouse of~470 DEG C or so of fixed-bed pyrolysis device, and its pyrolysis zone in pyrolysis storehouse is made quickly to mix, complete
In mixed 1 second, stalk particle obtains heat from silicon carbide and is pyrolyzed, and releases high temperature imflammable gas, carbon, Yi Jizhu
If the pyrolysis residue of inanimate matter ingredient.The high-temperature gas is collected, passes through a liquid suction heat exchanger fast cooling to 350
DEG C hereinafter, using cyclone dust dedusting, continue to cool down, portion gas is condensed into flammable liquid ingredient.
In the present embodiment, silicon carbide can take black silicon carbide either green silicon carbide or green silicon carbide and black silicon carbide
Composition.
In the present embodiment, silicon-carbide particle size also desirable 0.5~50mm, preferably 1~3mm can also contain silicon carbide
Powder.
In the present embodiment, the silicon-carbide particle of the large-size of 5~50 mm can be the crystal silicon carbide group of sintering polymerization
Block or silicon carbide ceramics particle, and the silicon carbide preferred crystal silicon carbide of 1~3mm.Crystal silicon carbide provides better
Heat conduction and heat-transfer capability.
In the present embodiment, stalk particle can be any agricultural crop straw or dewatered stalk.It will before pyrolysis
Stalk is dried, the moisture content for can improve pyrolysis efficiency, reducing pyrolysis gas, the consumption for reducing silicon carbide thermophore.Before pyrolysis
Stalk is crushed, for example, be crushed to 30mm hereinafter, 10mm hereinafter, pyrolysis efficiency can be improved.
Embodiment 2, a kind of method for pyrolysis of stalk of the invention, wherein, by the granulated carbon of the first temperature in embodiment 1
SiClx and broken stalk are mixed on the fluid bed of a fluidized bed pyrolysis device with fluidization, and stalk particle is from silicon carbide
It obtains heat and is pyrolyzed, obtain fuel gas, flammable liquid and carbon and pyrolysis residue.
Embodiment 3, a kind of method for pyrolysis of stalk of the invention, wherein, by the granulated carbon of the first temperature in embodiment 1
Pyrolysis chamber is sent into the pyrolysis chamber upper end that SiClx and broken stalk have the pyrolysis installation of vertical pyrolysis chamber from one, makes it
Even mixing is fallen, and during whereabouts, stalk particle obtains heat and is pyrolyzed.Wherein, stalk particle and grained silicon carbide fall
Speed can utilize the flow velocity in the ascending air of pyrolysis chamber setting to adjust or the particle size using stalk and silicon carbide
Adjustment so that stalk particle realizes fully pyrolysis when reaching pyrolysis bottom of chamber portion.In the present embodiment, the speed and heat of pyrolysis are adjusted
The cross-sectional area of chamber is solved, changes the rising pyrolysis air-flow that pyrolysis generates, also can adjust under stalk particle and thermophore silicon carbide
The speed fallen.
Embodiment 4, a kind of method for pyrolysis of stalk of the invention, wherein, it is provided at least one inclination using in pyrolysis intracavitary
The grained silicon carbide of the first temperature in embodiment 1 and broken stalk are uniformly mixed feeding by the pyrolysis plant of heat-conducting plate
The upper end of heat-conducting plate is tilted, it is made to be moved down along heat-conducting plate, during moving down, heat is directly or indirectly passed from grained silicon carbide
It passs stalk particle and realizes the pyrolysis of stalk.
Embodiment 5, a kind of method for pyrolysis of stalk of the invention, wherein, by the granulated carbon of the first temperature in embodiment 1
SiClx thermophore is substituted for containing 70~80% silicon carbide, 2~10% magnesia, 2~10% aluminium oxide, the oxidation of 2~10% iron
Object, 1~5% zinc oxide, 2~10% calcium oxide or calcium carbonate, 2~10% dolomite, 2~10% quartz sand it is mixed
Close particulate matter.
Embodiment 6, a kind of method for pyrolysis of stalk of the invention, wherein, optional one implementation in Examples 1 to 5
It is in example, the thermophore of low temperature after the pyrolysis product of pyrolysis intracavitary pyrolysis zone rear end, pyrolysis residue and pyrolysis is continuous
Ground removes pyrolysis zone, meanwhile, the thermophore of stalk and high temperature is continually fed into pyrolysis zone in constant flux ratio
Front end mixes, and continuously pushes mixed material to the back-end, realizes the continuous pyrolysis of stalk.Wherein it is possible to using being pyrolyzed
Intracavitary sets the mode of hang plate, and the inclined surface for making mixed material along hang plate slides and realize the push of mixed material,
The feeding screw in pyrolysis intracavitary setting can be utilized to push the mixtures such as mixed material and thermal decomposition product.Wherein, mixture
Expect the time removed from entrance pyrolysis chamber to mixtures such as the thermal decomposition products of the partial material, preferably within 30 seconds, such as 15
Second, further preferred 5~10 seconds, the shortest time was shorter than within 2 seconds, such as 1 second.
In the present embodiment, for the dosage of reduction thermophore, the mixture for removing pyrolysis chamber can also be further sorted, it will be close
Degree is smaller, particle is smaller or pyrolysis product, pyrolysis residue and thermophore in powder separate, then thermophore is added again
Heat recycles.In the present embodiment, thermophore is sub-elected using rotary screen.
Embodiment 7, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 6, it will be removed from pyrolysis position
And the particle thermophore sorted out is sent to a heating room, which is provided at least one heating plate, heating plate tool
There are one inclined surface, thermophore particle continuously, is equably sent to the upper end of the inclined surface from top so that thermophore
Particle is moved down along the inclined surface, and in the process, outside is sent to the heat of heating plate, passes through thermophore particle and heating plate
The surface of contact passes to thermophore particle, reaches or more than the first higher temperature.
Embodiment 8, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 6, it will be removed from pyrolysis position
And the particle thermophore sorted out is sent to a fluid bed heater, particle thermophore is in fluid bed by high-temperature gas and bed
The heat that bottom is transmitted.
Embodiment 9, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 6, it will be removed from pyrolysis position
And the particle thermophore sorted out is sent to a cyclone separator, and in the separator, high temperature that particle thermophore is passed into
Nitrogen heats, and is subsequently isolated out, then send to pyrolysis storehouse and recycle.
Embodiment 10, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 6, it will be removed from pyrolysis position
And the particle thermophore sorted out is continually fed on the heating bed of a fixed bed heating room, and is moved along heating bed, it should
Heating bed is provided with one group of electrode at the position that particle thermophore covers, which is loaded into particle thermophore by low-tension current
On, silicon carbide thermophore is made to be powered and generates resistance heat and is increased to predetermined temperature, heating room is then continually removed, send to heat
Xie Cang is recycled.
Embodiment 11, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 1, the heat in the pyrolysis storehouse
Solution position is provided with heating plate, the surface which contacts with the pyrolyzed mixture being made of stalk particle and thermophore particle
It is made of silicon carbide ceramics plate, from external heat source（600~900 DEG C）Heating plate is persistently transmitted heat to, and through heating
The silicon carbide of plate passes to pyrolyzed mixture.In the present embodiment, stalk particle in pyrolyzed mixture absorb thermophore and
The heat of heating plate and be pyrolyzed, generation carbon dust, a small amount of pyrolysis residue and gaseous state thermal decomposition product.Using the air-flow of certain flow rate by carbon
Powder and a small amount of pyrolysis residue remove pyrolysis position.In the present embodiment, the stalk for being broken into reduced size is continuously introduced into heat
Position is solved, the silicon carbide thermophore with being pyrolyzed position is sufficiently mixed by stirring and absorbs heat rapidly, realizes lasting " dodge
Speed " pyrolysis.This method is especially suitable for the pyrolysis disposition of the house refuse containing more waste plastics and useless chemical fibre, also is adapted for containing big
Measure the pyrolysis disposition of the Biohazard Waste of plastic components.
Embodiment 12, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 11, the pyrolysis storehouse
Heating plate is additionally provided at least one set of graphite electrode by the position that silicon carbide thermophore covers, and graphite electrode keeps opposite with heating plate
High impedance contacts or insulation, electric current is principally applied on the grained silicon carbide thermophore of covering graphite electrode, auxiliary heating carbon
SiClx thermophore.
Embodiment 13, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 6, it will be removed from pyrolysis position
And after the partial particulate thermophore sorted out is cooled down by a cooling heat-conducting plate, a preheating heating cabinet is sent into, it is pre- at this
In hot heating cabinet, stalk particle and the mixing of particle thermophore in relatively low third temperature are heated to the second higher temperature
Degree then, the pyrolysis of pyrolysis storehouse is admitted in higher second temperature stalk particle.In the present embodiment, third temperature is delivered heat to
Stalk particle after particle thermophore and stalk particle be sent into together pyrolysis storehouse.In the present embodiment, the third temperature
One example is any number between 20~50 DEG C, and an example of the second temperature is times between 70~130 DEG C
Meaning numerical value.
Embodiment 14, a kind of method for pyrolysis of stalk of the invention, wherein, in embodiment 6, it will be removed from pyrolysis position
And after the partial particulate thermophore sorted out is cooled down by a cooling heat-conducting plate, a pre- pyrolysis heating room is sent into, at this
Pre- pyrolysis heating is indoor, stalk particle and the mixing of particle thermophore in relatively low third temperature, is heated to higher by the
Two temperature are simultaneously pyrolyzed in advance, and then, the stalk particle of the warmed-up solution in higher second temperature is admitted to the pyrolysis of pyrolysis storehouse.This
In embodiment, deliver heat to the particle thermophore after the stalk particle of third temperature and stalk particle is sent into pyrolysis storehouse together.This reality
It applies in example, an example of the third temperature is any number between 70~130 DEG C, one of the second temperature
Example is any number between 260~350 DEG C.In pre- pyrolysis, a small amount of moisture that stalk particle contains is evaporated out, part
Pyrolysis devolatilization comes out simultaneously for ingredient such as chlorine, sulphur.
Embodiment 15, a kind of method for pyrolysis of stalk of the invention, wherein, an optional reality in embodiment 1~14
It applies in example, dry and broken stalk is compacted in a thin-layered way by roll-in, is then made subsequent step processing, is sent into pyrolysis storehouse
It is pyrolyzed.
Embodiment 16, a kind of method for pyrolysis of stalk of the invention, wherein, an optional reality in embodiment 1~15
It applies in example, the solid thermophore is heated to 500 DEG C higher of the first temperature, with the second temperature after relatively low pre- pyrolysis
The mixture of 300 DEG C of stalk particle and the solid thermophore of part second temperature mixes, mixed balance thermal decomposition temperature
It is 420 DEG C to spend, and stalk particle completes flashing speed oven in this temperature.
Embodiment 17, a kind of cleavage method of rice husk of the invention, wherein, by rice husk and the coke no more than 49% weight ratio
Oil, tar cracking catalyst mixing, are made particle, are preheating to 150~300 DEG C, and the silicon carbide thermophore with high temperature is in pyrolysis chamber
Interior mixing reaches 700~900 DEG C of cracking temperature of balance, completes the flash cracking of rice husk.
Embodiment 18, a kind of method for pyrolysis of damaged tire of the invention, wherein, mainly include the heat-carrying of silicon-carbide particle
Body is heated to 500~550 on the pyrolysis bed of the pyrolysis intracavitary of fixed-bed pyrolysis device, by the heat carrier positioned at pyrolysis bed bottom
DEG C and keep the temperature, damaged tire is put on the silicon-carbide particle on the pyrolysis bed, as heat is gradually from carbonization
Silicon particle passes to the position of damaged tire and silicon carbide contact, and position pyrolysis generates carbon dust and pyrolysis gas.It is warmed using height
Solution gas or nitrogen, which blow off the carbon dust of generation, is pyrolyzed bed, and until damaged tire, all pyrolysis is completed.Pyrolysis residue is isolated, is sent
Enter next batch damaged tire to be pyrolyzed.
Embodiment 19, a kind of method for pyrolysis of organic matter of the invention, wherein, optional one in embodiment 1~18
In embodiment, any one following set of containing organic material or its arbitrary group are substituted for containing organic material by described
It closes：The by-product such as bagasse, rice of the processing such as agricultural crop straw, the root, stem and leaf flowers and fruits seed of all kinds of plants, crop, grain, oil plant
Shell, vinasse, coconut husk, palm shell, pomace, the grain to go mouldy, grain, spoil, forest by-product such as sawdust, branches and leaves, with
And its allogenic material material, raw coal, reconstructed coal, gangue, house refuse（Such as application of city life garbage）, food waste, decoration
Rubbish, the industrial bio matter containing organic matter（Such as pharmaceutical factory, chemical plant waste）, building containing organic matter and build waste
（Such as it is bitumeniferous building or road waste object）, Biohazard Waste, means of agricultural production waste（Such as mulch, Seedling bag）, electric appliance and
Electron wastes, scrap rubber and damaged tire, waste plastics, spent resin, useless coating and adhesive, the residual oil or dregs of fat, waste oil, useless drip
Blueness, waste packing articles, waste paper, waste electric wire cable, sludge（Such as the sludge that waste water, sewage disposal generate）, excrement.
Embodiment 20 implements the special pyrolysis system of the method for pyrolysis of the present invention, includes feedstock pre-processing system, tubular type
Raw material preheating storehouse, pyrolysis storehouse, thermophore electric heater, pyrolysis gas cooling heat exchanger, high temperature draught fan, cyclone dust, pyrolysis gas
Condenser, oil storage tank, air accumulator, the tank that gathers dust, source nitrogen etc..Wherein, feedstock pre-processing system can will treat pyrolytic material dry to
Moisture content is less than 1% and the thin slice of 1~5mm of diameter, 0.1~0.5mm of thickness is made, be sent into pre-heating cabin feeding screw into
Material mouth is pushed by feeding screw into pre-heating cabin.The discharge end of pre-heating cabin is equipped with air inlet, can be passed through 100 ~ 130 DEG C of nitrogen,
It will treat that pyrolytic material is preheated to 100~130 DEG C.Pre-heating cabin outlet side is equipped with screw feeder, can will wait to be pyrolyzed by preheating
Material is sent into the pyrolysis storehouse feed inlet for being connected to the port of export, passes through a distributing device and uniformly falls on the load in pyrolysis storehouse
Hot body carries position；Thermophore carrying position is provided with one group of graphite heating electrode, and electrode passes through pyrolysis bulkhead, passes through cable
It is connected with the 200kw pressure regulation power supplies being located at outside pyrolysis storehouse, forms thermophore electric heater, it can be to the carbonization covered on the electrode
Silicon thermophore is powered and makes its fever.Pyrolysis storehouse nearly thermophore carrying position is additionally provided with nitrogen inlet, via pyrolysis storehouse outside
Intake valve is connected to the nitrogen outlet of heat exchanger.During work, the screw feeder of pre-heating cabin outlet side is kept for less than 110 DEG C；It is logical
Heating electrode is supplied electricity to, silicon carbide thermophore is heated to 500~700 DEG C and is kept, such as is maintained at 575 DEG C；After preheating
It will treat that pyrolytic material is sent into pyrolysis storehouse with appropriate flow and it is made uniformly to fall on thermophore, at this point, pyrolytic material flash will be treated
Pyrolysis generates pyrolysis gas and minimal amount of carbon dust（Slag）；Exhaust of the pyrolysis gas by the suction of high temperature draught fan above pyrolysis storehouse
Mouth is drawn, and is sent into the pyrolysis gas cooling heat exchanger cooling for being connected to exhaust outlet；Wherein, temperature-reducing medium uses cold nitrogen, after heating
Nitrogen be respectively used to raw material drying, preheating and by air valve be sent into pyrolysis storehouse, heat-carrying is passed through by the air-spreading disk optionally set
Body region, it is attached to discharge thermophore for maintaining the preset pressure in pyrolysis storehouse and generating appropriate airflow stirring and dustproof function
Nearly pyrogenous origin carbon dust；The pyrolysis gas of cooling is sequentially sent to cyclone dust dedusting, condenser is condensed out liquid；The liquid of acquisition
Body is sent into oil storage tank, and remaining gas is sent into air accumulator；It is connected to the tank that gathers dust at cyclone dust dust mouth and collects antipyretic carbon dust
With a small amount of pyrolysis residue.Wherein, the preferred grained silicon carbide of the thermophore, it is also possible to carborundum plate.
Embodiment 21 implements the special pyrolysis system of the method for pyrolysis of the present invention, wherein, in the pyrolysis system of embodiment 20
In, the thermophore carrying position in pyrolysis orlop portion, also include heat carrier and with the hot linked gas heating of heat carrier
Device, which can be vented one's spleen by the combustion heat heats heat carrier, transfers heat to thermophore carrying position, coordinates thermophore
The use of electric heater makes the temperature of thermophore be maintained at the range of reservation.
Embodiment 22 implements the special pyrolysis system of the method for pyrolysis of the present invention, wherein, in the heat of embodiment 20 or 21
On the basis of solution system, between pre-heating cabin and pyrolysis storehouse, it is additionally provided with a pre- pyrolysis storehouse or referred to as dechlorination desulfurization is pyrolyzed
Storehouse and a containing hydrogen chloride and/or hydrogen sulfide pyrolysis Flash Gas Compression Skid System.Pre- pyrolysis storehouse will will treat pyrolytic material from pre-heating cabin
270 ~ 330 DEG C are heated to, makes its partial thermal decomposition, removing at least part chlorine, sulphur generation hydrogen chloride, hydrogen sulfide etc., Yi Jishui passes through
The exhaust outlet discharge in pre- pyrolysis storehouse is sent into a containing hydrogen chloride hydrogen sulfide pyrolysis Flash Gas Compression Skid System, to remove chlorination therein
Hydrogen, hydrogen sulfide；Then treat that pyrolytic material is sent into the pyrolysis of pyrolysis storehouse by what is obtained after pre- pyrolysis.
Embodiment 23 implements the special pyrolysis system of the method for pyrolysis of the present invention, wherein, in the pyrolysis of embodiment 20~22
On the basis of system, it is additionally provided with a thermophore heating cabinet and thermophore from pyrolysis storehouse pyrolysis position is detached, is delivered to load
Hot body heating cabinet and the thermophore separation transport system that thermophore pyrolysis storehouse is delivered to from heating cabinet, thermophore heating
Storehouse is provided with thermophore electric heater, by be arranged on outside heating cabinet pressure regulation power supply, electrode cable and be arranged on heating cabinet
One group of graphite electrode at thermophore carrying position is formed.When the pyrolysis system works, thermophore and general based on silicon carbide
After pyrolytic material mixes at the pyrolysis position in pyrolysis storehouse, is pyrolyzed the latter, the silicon carbide after cooling is detached, is delivered to heat-carrying
Body heating cabinet after thermophore electric heater electrified regulation, then is delivered to pyrolysis storehouse, so as to recycle thermophore.
Embodiment 24 implements the special pyrolysis system of the method for pyrolysis of the present invention, wherein, in the pyrolysis of embodiment 20~23
In system, it is pyrolyzed in the pyrolysis position in storehouse, the thermophore carrying position of thermophore heating cabinet and thermophore separation transport system
In thermophore carrying position, at least one includes silicon carbide ceramics plate.
Embodiment 25 implements the special pyrolysis system of the method for pyrolysis of the present invention, wherein, in the pyrolysis system of embodiment 23
In, thermophore pyrolysis storehouse thermophore carrying position is provided with an inclined load-bearing surface, angle of inclination for it is horizontal downwards
Between 33~43 degree.During work, this inclined load-bearing surface is fallen on certain initial velocity, is moved downwards along the load-bearing surface
It is dynamic, it is heated during movement.
Embodiment 26 implements the special pyrolysis system of the method for pyrolysis of the present invention, wherein, in the pyrolysis of embodiment 20~25
In system,
The pyrolysis position in the pyrolysis storehouse is also set up there are one inclined surface, and angle of inclination tilts down 25 for horizontal plane
~40 degree.During work, treat that at least one of pyrolytic material and silicon carbide thermophore are sent on the inclined surface, along the surface
It moves down, during movement, treats that pyrolytic material realizes pyrolysis.
The description and embodiments of the present invention are only exemplary, it is contemplated that specification and put into practice hair disclosed herein
Bright spirit, those skilled in the art, can be to being draped over one's shoulders it is clear that in the case of without departing from the scope of the present invention or design
The scheme and method and embodiment of dew make various modifications and variations.
Claims (10)
1. a kind of method for pyrolysis of biomass, including at least step：Solid thermophore is heated to the first higher temperature；It will be compared with
The solid thermophore of the first high temperature and relatively low second temperature containing can the biomass of pyrolysis component leaned in pyrolysis zone
Closely, contact, make in biomass can pyrolysis component obtain heat and be pyrolyzed, generation it is condensable and it is uncondensable combustibility gas
Body and pyrolysis product, the imflammable gas optionally through further refine, crack refinement, purification, condensation, liquid can be obtained
Body and gaseous fuel, it is characterized in that, the solid thermophore includes silicon carbon compound.
2. method for pyrolysis according to claim 1, it is characterized in that, the biomass and solid thermophore are in pyrolysis zone
It is two kinds at least arbitrary in the biomass pyrolytic residue, solid thermophore and pyrolysis product three after close, contact,
Within 30 seconds, within preferably 15 seconds, and within further preferred 5 seconds, it is moved out of the pyrolysis zone.
3. method for pyrolysis according to claim 1, wherein, the solid thermophore is after pyrolysis heat is transmitted, optionally
It is heated one of at pyrolysis near sites and the heating unit two being delivered to except pyrolysis position, it is characterized in that, described in heating
Solid thermophore mode, including direct-electrifying to solid thermophore make its generate electric heating and heat.
4. method for pyrolysis according to claims 1 to 2, it is characterized in that, the solid thermophore is transmitting pyrolysis heat
Afterwards, at least part is individually transferred out the pyrolysis zone, is contacted through the biomass of optional cooling step and third temperature,
The biomass of third temperature is made to heat up and/or be pyrolyzed, wherein, the third temperature is less than second temperature.
5. method for pyrolysis according to claims 1 to 4, wherein, the silicon carbide solid thermophore is granular crystals
Or ceramic silicon carbide, particle size preferably 0.01 ~ 50mm, and further preferred 0.3 ~ 3mm.
6. method for pyrolysis according to claims 1 to 5, it is characterized in that, described its silicon carbide of silicon carbide-containing thermophore contains
Amount accounts for more than the 50% of heat carrier mass ratio, preferably 60~98%.
7. method for pyrolysis according to claim 5, it is characterized in that, the biomass and solid thermophore with fluidization
Mode contacts.
8. method for pyrolysis according to claims 1 to 7, it is characterized in that, the first temperature of the solid thermophore does not surpass
Cross 580 DEG C, preferably 480~530 DEG C.
9. a kind of biomass pyrolytic dedicated system includes at least one pyrolysis storehouse and the optional load containing heating position
Hot body reheater, after the biomass is pyrolyzed and is pyrolyzed heat transfer in the pyrolysis storehouse and thermophore progress heat exchange
Thermophore heated at the heating position of thermophore reheater, it is characterized in that, in the pyrolysis storehouse or thermophore adds again
Heated current is applied to described at least provided with one group of electrode by the carrying position of the thermophore of thermal at work
To heat thermophore on thermophore.
10. a kind of biomass pyrolytic dedicated system, include at least one pyrolysis storehouse and optional thermophore heating position,
Thermophore delivery site, it is characterized in that, it is contacted in the pyrolysis storehouse, thermophore heating position, thermophore delivery site with thermophore
Position, at least one includes the contact surface of carbofrax material composition, and thermophore can contact the silicon carbide contact during work
Face and, the optional contact surface has at least one inclined surface, during work, pyrolysis feed or thermophore along the surface to
Lower movement.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046373A (en) * | 2013-03-15 | 2014-09-17 | 中国石油化工股份有限公司 | Method for preparing bio-oil and synthesis gas from biomass |
| CN205825038U (en) * | 2016-05-25 | 2016-12-21 | 北京三态环境科技有限公司 | A kind of internal heat type domestic garbage pyrolysis system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046373A (en) * | 2013-03-15 | 2014-09-17 | 中国石油化工股份有限公司 | Method for preparing bio-oil and synthesis gas from biomass |
| CN205825038U (en) * | 2016-05-25 | 2016-12-21 | 北京三态环境科技有限公司 | A kind of internal heat type domestic garbage pyrolysis system |
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Application publication date: 20180706 |