CN101440290B - A method of microwave rapid medium and low temperature carbonization of coal - Google Patents
A method of microwave rapid medium and low temperature carbonization of coal Download PDFInfo
- Publication number
- CN101440290B CN101440290B CN 200810232680 CN200810232680A CN101440290B CN 101440290 B CN101440290 B CN 101440290B CN 200810232680 CN200810232680 CN 200810232680 CN 200810232680 A CN200810232680 A CN 200810232680A CN 101440290 B CN101440290 B CN 101440290B
- Authority
- CN
- China
- Prior art keywords
- coal
- low
- microwave
- coke
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003763 carbonization Methods 0.000 title abstract description 13
- 239000000571 coke Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000000197 pyrolysis Methods 0.000 claims description 45
- 230000008569 process Effects 0.000 claims description 13
- 239000011449 brick Substances 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 239000003034 coal gas Substances 0.000 abstract description 20
- 239000011269 tar Substances 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000010000 carbonizing Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 description 17
- 239000007789 gas Substances 0.000 description 16
- 239000003921 oil Substances 0.000 description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000011280 coal tar Substances 0.000 description 7
- 238000004939 coking Methods 0.000 description 7
- 239000003077 lignite Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000009508 confectionery Nutrition 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a method for carbonizing low-temperature coal of low metamorphic coal. The method adopts a microwave generation device as a heating source with the frequency of microwave of between 0.3 and 300 GHz; and the low metamorphic coal is heated to the a temperature of between 300 and 800 DEG C and is subjected to low-temperature carbonization to generate semi-coke, tar and coal gas. The method selects coal with shallow metamorphic degree as a raw material, utilizes a microwave radiation type heating mode to rapidly and selectively heat a coal material, depends on the dielectric property of the coal material to convert microwave energy and produce heat, utilizes the function of microwave activated molecules and achieves the aim of rapidly pyrolyzing the low metamorphic coal, thereby obtaining the semi-coke, tar and the low-temperature carbonization coal gas. The method has rapid coal pyrolyzing speed, can effectively improve the content of valuable compositions in the carbonation coal gas and is favorable for effective and comprehensive reclaiming of the coal gas.
Description
Technical field
The invention belongs to the coal pyrolysis technical field, relate to a kind of method of middle low-temperature pyrolysis of low-disintegration coal kind, the method is mainly used in the low-disintegration coal pyrolysis and produces blue charcoal (semicoke), coal tar and low-temperature pyrolysis coal gas.Also can be used for coal drying, fuel-burning power plant and steam coal and enter the stokehold pre-treatment, extract the tar in coal and the valency gaseous constituent is arranged.
Background technology
Along with the day of oil, natural gas source is becoming tight, coal resources further develop, and especially the development of Filter Tuber For Clean Coal burning and coal chemical technology becomes the center of gravity of China's energy exploitation and application research gradually.
China is the country of coal more than one, scarce oil, few Sweet natural gas, and current coal in China is mainly as industries such as generating, coking and power.Usually require low-sulfur high-quality coal or coal (bottle coal, rich coal, coking coal and the lean coal used as coking).Although coal resources in China is abundanter, the high-quality coal resource only accounts for half left and right, and all the other are the low-disintegration coal resources such as brown coal, long-flame coal, bottle coal, non-caking coal.The young coals such as brown coal, long-flame coal, bottle coal, non-caking coal are high because of moisture, ash content is high, volatile matter is high, calorific value is low, often is taken as the inferior fuel steam coal; Add easy differentiation and spontaneous combustion, should not transport for long-distance, also just become the coal resource that is difficult to the strange land processing and utilization.
The young low-disintegration coal kind such as Jurassic Coal accounts for 40% left and right of coal resources in China reserves, and the peaceful sweet area of waiting is up to more than 70% in Jin, Shaanxi and Inner Mongolia.China produced 25.1 hundred million tons of coals in 2007, and fat coal accounts for 65%, and the low-disintegration coal output that reserves are larger is less.In addition, in the exploitation fat coal, its association low-quality coal resources cause coal resources waste because of synchronously extraction of Market Reasons.
Form and analysis of the molecular structure from ature of coal, Jurassic Coal is the coal of suitable comprehensive utilization.Jurassic Coal is rich in oil and adsorbed methane moisture etc., is all main raw materials of production Coal Chemical Industry product, and for the area that conventional water resources lacks, Jurassic Coal is good Coal Chemical Industry raw material.Jurassic Coal is high-volatile coal, its molecular structure can be regarded the combination of hard coal and oil gas molecule as, take suitable working method that the oil gas component separating in Jurassic Coal out (is similar to the resinous shale processing and utilization), can alleviate China's oil and Sweet natural gas disparities between supply and demand.The present invention also can be used for the deep processing of brown coal and resinous shale in addition.
The retorting technique of the middle low temperature pyrogenation of coal and separation and Extraction high added value oil gas composition is as the traditional coal conversion that meets the clean coal technology and utilize technology, and the reasonable utilization of coal resources in China is had great importance.
The dry distillation of coal (coal carbonization) is one of significant process of Coal Chemical Industry.Refer to coal heating under the condition of isolated air or control air capacity, decompose, generate the process of the products such as coke/semicoke (blue charcoal), coal tar, crude benzol, coal gas.Difference by the heating final temperature can be divided into three kinds: 900 ℃～1100 ℃ are high temperature carbonization, i.e. coking; 700 ℃～900 ℃ is medium temperature carbonization; 500 ℃～700 ℃ are low-temperature pyrolysis.
Dry distillation of coal process mainly experiences following variation: during higher than 100 ℃, the moisture in coal evaporates when the temperature of coal charge; When temperature is elevated to more than 200 ℃, disengage in conjunction with water in coal; Up to more than 350 ℃ the time, caking coal begins to soften, and further forms the plastic mass (this phenomenon does not occur for mud coal, brown coal etc.) of thickness; Separate out to 400 ℃～500 ℃ most of coal gas and tar, claim one time thermal decomposition product; At 450 ℃～550 ℃, thermolysis is proceeded, residue retrogradation and solidify to form semicoke (blue charcoal) gradually; Higher than 550 ℃, semicoke (blue charcoal) continues to decompose, and separates out remaining volatile matter (main component is hydrogen, methane etc.), and semicoke weightlessness is shunk simultaneously, forms crackle; Temperature is higher than 800 ℃, and the hardening of semicoke volume-diminished forms porous coke/semicoke or blue charcoal etc.When destructive distillation was carried out in the cell-type gas retort, thermal decomposition product and red-hot coke and high temperature furnace wall contacted, and second heat occurs decompose, and form second heat degradation production (coke-oven gas and other coking chemistry product).
In coal, the product of low-temperature pyrolysis is coke or semicoke (blue charcoal), coal tar oil and gas.
The productive rate of dry distillation of coal product and composition depend on raw material ature of coal, furnace structure and processing conditions (being mainly the processing condition such as temperature and time).Along with the difference of destructive distillation final temperature, dry distillation of coal product is also different.The black semicoke that middle low-temperature pyrolysis solid product is short texture (blue charcoal), gas yield is low, and tar yield is high; The high temperature carbonization solid product is the silver gray coke of compact structure, and gas yield is high and tar yield is low.The yield of medium temperature carbonization product is between low-temperature pyrolysis and high temperature carbonization.The coal gas main component that generates in dry distillation of coal process is hydrogen and methane, can be used as fuel or industrial chemicals.High temperature carbonization is mainly for the production of metallurgical coke, and the tar of gained is the mixture of aromatic hydrocarbons, heterogeneous ring compound etc., is the important sources of industrial acquisition aromatic hydrocarbons; Middle low-temperature pyrolysis coal tar contains more alkane than high temperature tar, is one of artificial petroleum important sources, can be used as oil fuel by the hydrogenation lighting.
At present domestic coal pyrolysis is produced blue charcoal (semicoke) technology and is mainly contained coal solid thermal carriers destructive distillation multi-production process, MRF pyrolytic process, STF pyrolytic technique, reaches take fluidized bed pyrolysis as basic circulating fluidized bed heat-power multi-production process take the thermoelectricity gas multi-production process of moving-bed as the basis, these methods are summed up and are mainly contained two large classes: external heating and synthesis by internal resistance electric melting, external heating is that outside utilizing coking chamber, furnace wall conducts heat to coal charge, although the gas quality that produces is stable, but it is inhomogeneous to conduct heat, pyrolysis time is longer, and production efficiency is relatively low; Synthesis by internal resistance electric melting utilizes thermal barrier directly coal charge to be conducted heat, and has the uniform advantage of heat transfer, but the coal gas that produces can be diluted, increase the coal gas amount, reduced the active constituent content of coal gas, unfavorable to the further comprehensive utilization of coal gas, and the pyrolysis rate of coal is low, and pyrolysis time is long.
Summary of the invention
The object of the invention is to, a kind of middle low-temperature coal carbonization method of low-disintegration coal kind is provided, the method pyrolysis of coal speed is fast, production efficiency is high, and coke, semicoke (blue charcoal) productive rate are high, and the tar yield is high, and the coal gas valuable content is high, and calorific value is high.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of middle low-temperature coal carbonization method of low-disintegration coal kind, it is characterized in that, the method adopts microwave generating apparatus as heat source, and microwave frequency is 0.3GHz～300GHz, the low-disintegration coal kind is heated to 300 ℃～800 ℃ carries out middle low-temperature pyrolysis, generate semicoke/blue charcoal, tar and coal gas.
Method of the present invention is to utilize the basic fine structure coupling of special wave band that microwave has and material to produce heat to heat, the intensification of coal charge is not to transmit by heat but complete by outfield and object interaction, it has selectivity, untouchable, globality, good uniformity, heat-up time is short, start and stop fast, easy to operate, energy utilization rate and heating efficiency are high, and safety and sanitation are pollution-free.
The coal that method of the present invention was suitable for is mainly some low rotten coals, as Jurassic Coal, brown coal, long-flame coal, bottle coal, non-caking coal, common electric coal etc., the coal charge particle diameter that present method is processed is between 0-300mm, and the several minutes coal charge just can be heated between 300 ℃～800 ℃, fully pyrolysis of the fugitive constituent in coal charge, generate at last blue charcoal or semicoke, the coal tar oil and gas.The method can be used for the pyrolytic process of low-disintegration coal, and proposes the deep processings such as tar and coal gas for the pre-treatment of coal in power plant, or is used for coking coal preheating or formed coke preparation, also can be used for the drying process of all coals and coke, blue charcoal (semicoke).Have flow process short, the cycle is short, and efficient is high, constant product quality, the characteristics that the comprehensive utilization of resources rate is high.Not only can greatly improve the pyrolysis rate of low-disintegration coal, and can effectively regulate the valuable component content in coal gas, be conducive to further comprehensive utilization and the recovery of coal gas.
Embodiment
The low-temperature coal carbonization method of low-disintegration coal kind of the present invention, coal charge is the more shallow coal of metamorphic grade, as Jurassic Coal, brown coal, long-flame coal, bottle coal, non-caking coal or oil-containing bottle coal etc., particle diameter is between 0～300mm, and the product of gained is blue charcoal (semicoke), coal tar oil and gas and carbon materials.
Embodiment of the present invention can be selected following several:
the first scheme: microwave generator is placed in coal heat decomposition stove carries out external heat outward, the pyrolysis of coal body of heater adopts the silica brick that can see through microwave, the refractory materials that the microwave oven such as magnesia brick or high alumina brick is suitable for is as furnace wall, add coal in furnace chamber, just can be heated between 300 ℃～800 ℃ by microwave generator in the process that the low-disintegration coal kind descends in furnace chamber, coal charge is carried out the heating of fast selective body, rely on the dielectric properties conversion microwave energy of coal charge self, produce heat, utilize the effect of microwave activation molecule, reach the purpose of low-disintegration coal fast pyrogenation, and in pyrolytic process, the material that the waste heat of coal gas is added after can making removes a part of mechanical water and molecular water, utilize fully heat energy, thereby obtain blue charcoal (semicoke), tar and low-temperature pyrolysis coal gas.
First scheme: microwave generating apparatus is placed in heating in coal heat decomposition stove, microwave generating apparatus can be made some special shapes according to the furnace binding needs, also microwave generator can be made a plurality of, be distributed in coal heat decomposition stove, the pyrolysis of coal body of heater is except building by laying bricks or stones with insulating brick, need add again one deck microwave isolated material outside body of heater, outside preventing that microwave leakage from coming out of the stove, the low-disintegration coal kind can be with dynamic or static form by microwave heating, thereby obtain blue charcoal (semicoke), tar and low-temperature pyrolysis coal gas.
The third scheme: microwave generating apparatus be placed in coal heat decomposition stove external heating mode all can, but before being placed in coal-fired electric generation furnace, be used for extracting fire coal high added value oil gas composition, all the other products can be used for generating.
Be below the embodiment that the contriver provides, the invention is not restricted to these embodiment.
Embodiment 1:
Get the Jurassic Coal that 50g comes from the somewhere, northern Shensi, granularity is 200mm, and its composition sees Table 1.Jurassic Coal is put into the reactor that adopts microwave heating, microwave frequency 0.3GHz～300GHz, 700 ℃ of heating final temperatures, pyrolysis 7min～30min, in pyrolytic process, derive the tar that produces in pyrolytic process, collect dry distillation gas and carry out sampling analysis after removing tar, the dry distillation gas composition sees Table 2, and blue charcoal analytical results sees Table 3.
The analytical results of table 1 raw coal
The analytical results of table 2 dry distillation gas
| N 2 | CO | CH 4 | CO 2 | H 2 | O 2 | C 2 |
| 2.59 | 16.19 | 21.31 | -- | 59.76 | 0.15 | 2.24 |
The analytical results of the blue charcoal of table 3 (semicoke)
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810232680 CN101440290B (en) | 2008-12-25 | 2008-12-25 | A method of microwave rapid medium and low temperature carbonization of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810232680 CN101440290B (en) | 2008-12-25 | 2008-12-25 | A method of microwave rapid medium and low temperature carbonization of coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101440290A CN101440290A (en) | 2009-05-27 |
| CN101440290B true CN101440290B (en) | 2013-06-26 |
Family
ID=40724903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810232680 Expired - Fee Related CN101440290B (en) | 2008-12-25 | 2008-12-25 | A method of microwave rapid medium and low temperature carbonization of coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101440290B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9187697B2 (en) * | 2010-01-04 | 2015-11-17 | Rodolfo Antonio M. Gomez | Advanced coal upgrading process for a power station |
| CN102199434B (en) * | 2011-04-13 | 2013-06-05 | 西安建筑科技大学 | Method for direct liquefaction residues of coal by utilizing microwaves quick pyrolysis |
| DK2739706T3 (en) * | 2011-08-01 | 2016-04-18 | Scandinavian Biofuel Company As | New microwave-assisted flash pyrolysis system and method thereof |
| CN102517058A (en) * | 2012-01-09 | 2012-06-27 | 河南理工大学 | Method for improving microwave pyrolysis rate of low-rank coal |
| CN102827621A (en) * | 2012-08-30 | 2012-12-19 | 西安建筑科技大学 | Method for producing semi-coke, oil tar and coal gas by adopting coal-coal gas microwave co-pyrolysis |
| CN103788969B (en) * | 2012-11-01 | 2016-08-03 | 中国石油化工股份有限公司 | A kind of coal and the group technology of petroleum refining side-product copyrolysis |
| RU2569013C1 (en) * | 2014-02-25 | 2015-11-20 | Владимир Владимирович Чертов | Lignite complex processing line and method |
| CN104962300B (en) * | 2015-06-24 | 2018-03-13 | 南京三乐微波技术发展有限公司 | Coal microwave destructive distillation equipment and its coal microwave destructive distillation processing method |
| CN111936601B (en) * | 2018-02-06 | 2022-04-29 | 塔塔钢铁有限公司 | Method for producing metallurgical coke from non-coking coal |
| CN108913177B (en) * | 2018-07-12 | 2021-07-06 | 中国科学院上海高等研究院 | A method and device for low temperature removal of biomass pyrolysis tar based on microwave hot spot |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940015A (en) * | 2006-07-10 | 2007-04-04 | 鲍涛 | Various microwave carbonized compound process |
-
2008
- 2008-12-25 CN CN 200810232680 patent/CN101440290B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940015A (en) * | 2006-07-10 | 2007-04-04 | 鲍涛 | Various microwave carbonized compound process |
Non-Patent Citations (1)
| Title |
|---|
| 郭树才.煤的低温干馏.《煤化工工艺学》.化学工业出版社,2006, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101440290A (en) | 2009-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101440290B (en) | A method of microwave rapid medium and low temperature carbonization of coal | |
| CN103740389B (en) | The multi-production process of low-rank coal cascade utilization | |
| JP5756814B2 (en) | Coal substance decomposition equipment | |
| CN102849676B (en) | High-temperature water vapor pyrolysis-cracking-gasification device and method for solid fuel | |
| CN102875005A (en) | Sludge biological carbonizing technology based on hydrothermal reaction | |
| AU2010359256B2 (en) | Vertical pyrolysis equipment for coal substance | |
| CN102766475B (en) | Method and system for performing drying and dry distillation on fluidized bed pulverized coal based on overheating steam medium | |
| CN103788969B (en) | A kind of coal and the group technology of petroleum refining side-product copyrolysis | |
| CN102277185A (en) | Method for pyrolyzing coal by utilizing heat accumulating type revolving furnace | |
| CN103788968B (en) | The combination process of a kind of coal and refining of petroleum byproduct copyrolysis | |
| CN105505475A (en) | Biomass gasification-dry distillation coupling carbon gas-oil co-production technology | |
| CN102839001A (en) | Pyrolysis apparatus and method for production of light tar | |
| WO2016095464A1 (en) | Process and apparatus for continuous extracting hydrocarbons from medium/low-rank coal by indirect heating stepwise pyrolysis | |
| CN105602593A (en) | Method for pyrolyzing fine coal by riser | |
| CN104194420B (en) | Method and device for producing low-ash carbon black by pyrolysis of waste tires | |
| CN104263394B (en) | A kind of brown coal low temperature distillation method for pyrolysis | |
| CN111978972B (en) | A straw waste coupled oil shale comprehensive utilization system and process | |
| He et al. | Pyrolysis and co-pyrolysis of Chinese Longkou oil shale and Mongolian Huolinhe lignite | |
| CN202124594U (en) | Heat accumulating type external heating medium-temperature and low-temperature coal pyrolyzing furnace | |
| CN108342207A (en) | A kind of limestone calcination and coal gasification and the method for destructive distillation coproduction | |
| CN105925282A (en) | Biomass thermal conversion device and method based on carbon cycle | |
| CN202671497U (en) | Fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium | |
| CN204529742U (en) | A kind of block four sections of moving-beds rich hydrogen environment gas retort | |
| CN113416568A (en) | Self-heating type oil shale aboveground dry distillation process capable of processing small-particle raw materials | |
| CN103666508A (en) | Low-rank coal low-temperature dry distillation pyrolysis process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20181225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |