CN107603727A - A kind of lubricating oil solvent system - Google Patents
A kind of lubricating oil solvent system Download PDFInfo
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- CN107603727A CN107603727A CN201710826529.2A CN201710826529A CN107603727A CN 107603727 A CN107603727 A CN 107603727A CN 201710826529 A CN201710826529 A CN 201710826529A CN 107603727 A CN107603727 A CN 107603727A
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- Prior art keywords
- dehvery pump
- refined
- solvent
- flash column
- cooler
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- 239000002904 solvent Substances 0.000 title claims abstract description 95
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 239000003921 oil Substances 0.000 claims abstract description 65
- 238000000605 extraction Methods 0.000 claims abstract description 63
- 230000000694 effects Effects 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000284 extract Substances 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 11
- 238000007701 flash-distillation Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims 2
- 238000011084 recovery Methods 0.000 description 22
- 239000002994 raw material Substances 0.000 description 12
- 239000002699 waste material Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008676 import Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000002199 base oil Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 125000003367 polycyclic group Chemical group 0.000 description 2
- 239000013557 residual solvent Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- -1 asphalitine Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 150000002072 compounds by element Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 150000001924 cycloalkanes Chemical class 0.000 description 1
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- 239000002283 diesel fuel Substances 0.000 description 1
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- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 238000004073 vulcanization Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of lubricating oil solvent system, an extraction tower top connects solvent tank, a dehvery pump of extraction tower bottom first, the effect flash column of primary heater connection one；Secondary extraction tower top connects solvent tank, the secondary dehvery pump of extraction tower bottom second, the effect flash column of primary heater connection one；The dehvery pump of one effect flash column bottom the 3rd, the effect flash column top of secondary heater connection two, effect flash column top the first cooler connection vacuum buffer tank group；Two effect flash column top the second cooler connection vacuum buffer tank groups, the dehvery pump of two effect flash column bottom the 4th are connected to extraction oil cooler；Refined liquid flash column connects vacuum buffer tank group through the 3rd heater, the 4th heater connecting secondary extraction tower top, refined liquid flash column top through the 3rd cooler；Refined liquid stripper top connects vacuum buffer tank group, the refined oil cooler of the dehvery pump of refined liquid stripper bottom the 6th connection through the 4th cooler.
Description
Technical field
The present invention relates to a kind of lubricating oil solvent system, belong to OIL IN LUBRICATING OIL PRODUCTION technical field.
Background technology
The whole world all produces substantial amounts of waste lubricating oil every year, and how to handle these waste lubricating oils also turns into people increasingly
The problem of concern.The mode of waste lubricating oil processing at present, which has, directly to be abandoned or fills, burns.In lubricating oil harmonic process, add
The additive (accounting for lubricants capacity 10%-30%) of various improvement lubricants performances is entered, wherein containing substantial amounts of chlorine, sulphur, phosphorus member
Waste oil, if waste lubricating oil is not dealt carefully with, is directly emitted into natural environment, these compounds by element and heavy metal element
To human body and ecological environment to be caused to direct or indirect harm.Produced very after contained additive and pollutant burning in waste oil
More ash contents and harmful substance, heavy metal in flue gas particulate are higher by 22 to 37 times, especially lead, zinc than burning ordinary diesel oil concentration
Particulate, for 80%-90% sizes about between 5-10 μm, its half-life period is 6-12 months, it is difficult to is deposited to ground, health is endangered
Evil is very big；And combustion system is also harmful to, it is necessary to frequent cleaning treatment.
Lubricating oil is in addition to certain viscosity is required, in addition it is also necessary to has preferable viscosity-temperature characteristics and anti-oxidative stability.For
Meet above-mentioned requirements, it is necessary to remove some undesirable components, aromatic hydrocarbons, the glue of mainly polycyclic short-side chain from crude lube stock
Matter, asphalitine and polycyclic and heterocyclic compound etc..In petroleum refining industry, in order to reach this purpose, most popular method
It is exactly to carry out selectivity to lube cut using solvent to refine.Process of Lube Solvent Refining is that a physics extracting separated
Journey.It is that have different solubility to the ideal composition in lubricating oil oil plant and undesirable components using some organic solvents.
Undesirable components colloid, the middle aromatic hydrocarbons and heavy aromatics of short-side chain, cycloalkane and some sulfur-bearings, nitrogen, the compound of oxygen are virtue
Solubility is big in a solvent compared with strong material for hydrocarbon and polarity, and the solubility of the more saturated hydrocarbon of ideal composition in a solvent is smaller.
Under certain condition, lubricating oil oil plant being extracted with selective solvent, undesirable components are largely dissolved in solvent and are removed, so as to
The carbon residue of lubricating oil is reduced, the anti-oxidative stability and viscosity temperature characteristic of oil product is improved, is improved color.
At present, internal lube oil processing generally uses hydrofining or clay finishing.The first hydrogenation supplement
Refine generally using being hydrogenated with the conditions of relaxing, residual solvent, partial vulcanization thing, oxide, a small amount of nitrogen in the oil product that dewaxed to removing
Compound effect is preferable, poor to removing basic nitrogen compound, colloid, asphalitine effect, and its refined oil oxidation stability is difficult to reach
Base oil standard requirement.Second of clay finishing can effectively slough colloid in oil product, asphalitine, residual solvent, but glue
Institute's sulfur-bearing, nitrogen (including partial alkaline nitride), oxygen are also sloughed therewith in matter, asphalitine, are had to the oxidation stability of oil product bright
It is aobvious to improve.But problems be present：Higher refining depth needs larger carclazyte amount, not only reduces the yield of base oil, and
Also serious spent bleaching clay can be caused to pollute；Carclazyte Selective adsorption is bad, base oil preferable component sulfide in subtractive process
Also it is removed；The addition of a large amount of solid particle carclazytes, can reduce the disposal ability of device, consume increase, filter filter cloth makes
Increased with the lost of life, labor strength.High-pressure hydrogenation can effectively remove nitride, but the natural inhibitor sulfur-bearing in oil
Compound is also removed simultaneously, and is easily light viscosity oil by heavy oil cracking, and product has condensation point rise and light stability
Phenomena such as poor, while construction investment and technological operation expense are higher.
The content of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of lubricating oil solvent system, suitable for waste and old profit
It is refined in the lubricating oil process of reproduction, it is adapted to refined to the waste lubricating oil recovery decolourized using decolouring sand, it is possible to achieve lubrication
The continuous treating of oil, refining effect is good, and the lubricating oil quality of production is high.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of lubricating oil solvent system, its feature exist
In：The refining system include an extraction tower, secondary extraction tower, one effect flash column, two effect flash columns, refined liquid flash column,
Refined liquid stripper, solvent tank, vacuum buffer tank group, water sealed tank；Extraction tower top connects the solvent tank, once
The dehvery pump of extraction tower bottom first, the primary heater connection one effect flash column；The secondary extraction tower top connection institute
Solvent tank is stated, secondary extraction tower connects an extraction tower, and the secondary dehvery pump of extraction tower bottom second, primary heater connect
Connect the effect flash column；The dehvery pump of one effect flash column bottom the 3rd, the secondary heater connection two effects flash column
Top, first cooler of effect flash column top connect the vacuum buffer tank group；The two effect flash columns top second
Cooler connects the vacuum buffer tank group, and the dehvery pump of two effect flash column bottom the 4th is connected to extraction oil cooler；It is described
Refined liquid flash column connects the secondary extraction tower top through the 3rd heater, the 4th heater, is passed through at the top of refined liquid flash column
3rd cooler connects the vacuum buffer tank group, and refined liquid flashes tower bottom and connects the refined oil cooling through the 5th dehvery pump
Device；The heater of refined liquid stripper top the 5th, the 5th dehvery pump connect the refined liquid flash distillation tower bottom, refined liquid
Stripper top connects the vacuum buffer tank group, the dehvery pump of refined liquid stripper bottom the 6th connection essence through the 4th cooler
Liquefaction cooler；The solvent tank connects the vacuum buffer tank group；The vacuum buffer tank group connects the water sealed tank.
A kind of lubricating oil solvent system as described above, an extraction tower and secondary extraction tower are jointly through raw material
Heater is connected to the 7th dehvery pump, and the 7th dehvery pump uses screw pump, and the 7th dehvery pump quantity is 2, and the 7th dehvery pump connects
Connect feedstock transportation pipeline.Refined material in feedstock transportation pipeline is imported an extraction tower and secondary extraction tower by the 7th dehvery pump
Inside, raw material are mixed inside extraction tower with the solvent come from solvent tank conveying, preferable group in crude lube stock
Divide the dissolubility difference with undesirable components, so as to realize the separation of undesirable components.
A kind of lubricating oil solvent system as described above, first dehvery pump connect second dehvery pump, the
One dehvery pump and the second dehvery pump are commonly connected to feedstock transportation pipeline.First dehvery pump and the second dehvery pump are used for extraction tower
The solvent Extract of bottom imports recovery system, is flashed especially by an effect flash column, realizes that the gas-liquid of material is separated,
The solvent recovery isolated imports to the liquid that in solvent tank, an effect flash distillation tower bottom is extracted out and extracts oil cooling out at the top of one effect flash column
But device cool down recovery or be again fed to feedstock transportation pipeline progress secondary solvent refining.
A kind of lubricating oil solvent system as described above, the quantity of the 3rd dehvery pump are 2, and 2 the 3rd defeated
It is connected with each other between material pump, the 3rd dehvery pump is used for the Extract for conveying an effect flash distillation tower bottom.3rd dehvery pump dodges an effect
The Extract of steaming tower bottom is transported to extraction oil cooler and carries out cooling down recovery or be again fed to the progress of feedstock transportation pipeline
Secondary solvent refines.
A kind of lubricating oil solvent system as described above, the quantity of the 5th dehvery pump are 2, and 2 the 5th defeated
It is connected with each other between material pump, the 5th dehvery pump is used for the refined liquid for conveying refined liquid flash distillation tower bottom.5th dehvery pump will be refined
The refined liquid of liquid flash distillation tower bottom is transported to refined liquid stripper, and refined liquid is transported to refined oil cooling by the 5th dehvery pump simultaneously
Device cool down recovery or be again fed to feedstock transportation pipeline progress secondary solvent refining.
A kind of lubricating oil solvent system as described above, the solvent tank are connected with solvent pump, and solvent pump is used for will
Solvent in solvent tank is unloaded, solvent pump quantity 2, is connected with each other between 2 solvent pumps.
A kind of lubricating oil solvent system as described above, the refined liquid stripper bottom is connected with jet chimney.
Jet chimney delivers a vapor to refined liquid stripper, and stripping tower reduces hydrocarbon partial pressure in the case of tower pressure is constant using steam, made
More light components are separated from tower top in refined liquid.
A kind of lubricating oil solvent system as described above, the vacuum buffer tank group include 4 vacuum buffer tanks, very
The 5th cooler of connection, vacuum buffer pot bottom are connected to the water sealed tank jointly for empty buffer tank top.The work of vacuum buffer tank
With being compensator or trimmer pressure, prevent from pouring in down a chimney, for gas-liquid separation, to reach the purpose of stable vacuum, the 5th cooler delays vacuum
The solvent separating liquid rushed in tank further cools down.Water sealed tank plays a part of ensureing vacuum buffer pressure inside the tank.Work as pressure inside the tank
When too high (height for exceeding water column in water seal), discharging certain pressure by water seal prevents superpressure.When vacuum buffer tank internal pressure
When power is too low (the low height for crossing water column in water seal), being passed through certain air by water seal prevents the super negative pressure of vacuum buffer tank from damaging
It is bad.
A kind of lubricating oil solvent system as described above, the extraction oil cooler are connected to feedstock transportation pipeline,
Extract oil cooler out and be also connected to tapped oil storage tank field simultaneously.Pass through feedstock transportation pipeline for detecting underproof Extract
It is transported to raw material pump intake to carry out repeating refined recovery, tapped oil storage tank field is transported to for detecting qualified Extract.
A kind of lubricating oil solvent system as described above, the refined oil cooler are connected to feedstock transportation pipeline,
Refined oil cooler is also connected to refined oil storage tank field simultaneously.Pass through feedstock transportation pipeline for detecting underproof refined liquid
It is transported to raw material pump intake to carry out repeating refined recovery, refined oil storage tank field is transported to for detecting qualified refined liquid.
The beneficial effects of the invention are as follows：No. one time extraction tower top connects solvent tank, a conveying of extraction tower bottom first
Pump, the effect flash column of primary heater connection one；Secondary extraction tower top connects solvent tank, and secondary extraction tower connection once extracts
Tower, the secondary dehvery pump of extraction tower bottom second, the effect flash column of primary heater connection one；One effect flash column bottom the 3rd is defeated
Expect pump, the effect flash column top of secondary heater connection two, effect flash column top the first cooler connection vacuum buffer tank group；
Two effect flash column top the second cooler connection vacuum buffer tank groups, the dehvery pump of two effect flash column bottom the 4th, which is connected to, to be taken out
Go out oil cooler；Refined liquid flash column is through the 3rd heater, the 4th heater connecting secondary extraction tower top, refined liquid flash column
The cooler connection vacuum buffer tank group of top the 3rd, refined liquid flash tower bottom through the connection refined oil cooling of the 5th dehvery pump
Device；The heater of refined liquid stripper top the 5th, the 5th dehvery pump connection refined liquid flash distillation tower bottom, refined liquid stripping tower top
The cooler connection vacuum buffer tank group of portion the 4th, the refined oil cooler of the dehvery pump of refined liquid stripper bottom the 6th connection；
Solvent tank connects vacuum buffer tank group；Vacuum buffer tank group connects water sealed tank.The present invention is applied to waste lubricating oil reproduction mistake
It is refined in journey, it is adapted to refined to the waste lubricating oil recovery decolourized using decolouring sand, it is possible to achieve the continuous treating of lubricating oil,
Refining effect is good, and the lubricating oil quality of production is high.
Brief description of the drawings
Fig. 1 is lubricating oil solvent system structure diagram.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited by following public specific embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more
The arbitrary and all combination of related Listed Items.
As shown in figure 1, a kind of lubricating oil solvent system, including the effect flash distillation of an extraction tower 1, secondary extraction tower 2, one
Tower 3, two imitates flash column 4, refined liquid flash column 5, refined liquid stripper 6, solvent tank 7, vacuum buffer tank group 8, water sealed tank 9；One
The secondary top of extraction tower 1 connects solvent tank 7, and first dehvery pump of bottom 10 of extraction tower 1, the effect of the connection of primary heater 11 one are dodged
Steam tower 3；The secondary top of extraction tower 2 connects solvent tank 7, and secondary extraction tower 2 connects an extraction tower 1, the secondary bottom of extraction tower 2 warp
Second dehvery pump 12, the effect flash column 3 of the connection of primary heater 11 one；The dehvery pump 13, second of one 3 bottom of effect flash column the 3rd adds
Hot effect flash column 4 top of the connection of device 14 two, effect flash column 3 first cooler of top 15 connect vacuum buffer tank group 8；Two effects
The second cooler of top 30 of flash column 4 connection vacuum buffer tank group 8, the dehvery pump 16 of two 4 bottom of effect flash column the 4th connect
To extraction oil cooler 17；Refined liquid flash column 5 through the 3rd heater 18, the top of 19 connecting secondary extraction tower of the 4th heater 2,
The top of refined liquid flash column 5 connects vacuum buffer tank group 8, the conveying of 5 bottom of refined liquid flash column the 5th through the 3rd cooler 20
The refined oil cooler 22 of the connection of pump 21；The heater 23 of 6 top of refined liquid stripper the 5th, the 5th dehvery pump 21 connection refined liquid
The bottom of flash column 5, the top of refined liquid stripper 6 connect vacuum buffer tank group 8, the bottom of refined liquid stripper 6 through the 4th cooler 24
The refined oil cooler 22 of the connection of dehvery pump 25 of portion the 6th；Solvent tank 7 connects vacuum buffer tank group 8；Vacuum buffer tank group 8 connects
Water sealed tank 9.
Extraction tower 1 and secondary extraction tower 2 are connected to the 7th dehvery pump 26, the 7th conveying through feed heater 31 jointly
Pump 26 uses screw pump, and the quantity of the 7th dehvery pump 26 is 2, the 7th dehvery pump 26 connection feedstock transportation pipeline 29.7th conveying
Pump 26 imports the refined material in feedstock transportation pipeline 29 inside extraction tower 1 and secondary extraction tower 2, and raw material is in extraction tower
It is internal to be mixed with solvent that is coming from the conveying of solvent tank 7, the ideal composition and undesirable components in crude lube stock
Dissolubility difference, so as to realize the separation of undesirable components.
First dehvery pump 10 connects the second dehvery pump 12, and the first dehvery pump 10 and the second dehvery pump 12 are commonly connected to raw material
Conveyance conduit 29.First dehvery pump 10 and the second dehvery pump 12 are used to the solvent Extract for extracting tower bottom importing recovery system
System, flashed especially by an effect flash column 3, realize that the gas-liquid of material is separated, the top of an effect flash column 3 is isolated molten
Agent is recovered in solvent tank 7, the liquid that effect flash column 3 bottom is extracted out import extract out oil cooler 17 cool down recovery or
The progress secondary solvent of feedstock transportation pipeline 29 is again fed to refine.
The quantity of 3rd dehvery pump 13 is 2, is connected with each other between 2 the 3rd dehvery pumps 13, the 3rd dehvery pump 13 is used for
The Extract of the effect flash column 3 of conveying one bottom.The Extract of one effect flash column 3 bottom is transported to tapped oil by the 3rd dehvery pump 13
Cooler 17 cool down recovery or be again fed to the progress secondary solvent of feedstock transportation pipeline 29 refining.5th dehvery pump 21
Quantity be 2, be connected with each other between 2 the 5th dehvery pumps 21, the 5th dehvery pump 21 is used to convey the bottom of refined liquid flash column 5
Refined liquid.The refined liquid of the bottom of refined liquid flash column 5 is transported to refined liquid stripper 6, the 5th conveying by the 5th dehvery pump 21
Refined liquid is transported to refined oil cooler 22 simultaneously and carries out cooling down recovery or be again fed to feedstock transportation pipeline 29 by pump 21
Secondary solvent is carried out to refine.Solvent tank 7 is connected with solvent pump 32, and solvent pump 32 is used to unload the solvent in solvent tank 7, solvent
32 quantity of pump 2, it is connected with each other between 2 solvent pumps.
The bottom of refined liquid stripper 6 is connected with jet chimney 27.Jet chimney 27 delivers a vapor to refined liquid stripper
6, stripping tower reduces hydrocarbon partial pressure using steam in the case of tower pressure is constant, more light components in refined liquid is isolated from tower top
Go.
Vacuum buffer tank group 8 includes 4 vacuum buffer tanks, and vacuum buffer tank top connects the 5th cooler 28 jointly, very
Empty buffer pot bottom is connected to water sealed tank 9.The effect of vacuum buffer tank is compensator or trimmer pressure, prevents from pouring in down a chimney, for gas-liquid separation, with
Reach the purpose of stable vacuum, the 5th cooler 28 further cools down to the solvent separating liquid in vacuum buffer tank.Water sealed tank 9
Play a part of ensureing vacuum buffer pressure inside the tank.When pressure inside the tank is too high (height for exceeding water column in water seal), pass through water
Envelope, which discharges certain pressure, prevents superpressure.When vacuum buffer pressure inside the tank is too low (the low height for crossing water column in water seal), pass through
Water seal, which is passed through certain air, prevents the super negative pressure damage of vacuum buffer tank.
Extract oil cooler 17 out and be connected to feedstock transportation pipeline 29, extract oil cooler 17 out and be also connected to tapped oil storage simultaneously
Deposit tank field.Raw material pump intake is transported to for the underproof Extract of detection by feedstock transportation pipeline 29 to carry out repeating to refine back
Receive, tapped oil storage tank field is transported to for detecting qualified Extract.Refined oil cooler 22 is connected to feedstock transportation pipeline
29, refined oil cooler 22 is also connected to refined oil storage tank field simultaneously.It is defeated by raw material for detecting underproof refined liquid
Send pipeline 29 to be transported to raw material pump intake to carry out repeating refined recovery, refined oil storage is transported to for detecting qualified refined liquid
Tank field.
The operation principle of the present invention is as follows：
7th dehvery pump 26 will treat that refined material imports an extraction tower 1 and secondary extraction tower in feedstock transportation pipeline 29
Inside 2, raw material is mixed inside extraction tower with the solvent come from the conveying of solvent tank 7, the ideal in crude lube stock
The dissolubility difference of component and undesirable components, so as to realize the separation of undesirable components.First dehvery pump 10 and the second conveying
The solvent Extract for extracting tower bottom is imported recovery system by pump 12, is flashed by an effect flash column 3, realizes the gas of material
Liquid phase separation, in the solvent recovery that effect flash column 3 top is isolated to solvent tank 7, the liquid of an effect flash column 3 bottom extraction
Extraction oil cooler 17 is imported cool down recovery or be again fed to the progress secondary solvent of feedstock transportation pipeline 29 refining.The
The Extract of one effect flash column 3 bottom is transported to extraction oil cooler 17 and carries out cooling down recovery or defeated again by three dehvery pumps 13
The progress secondary solvent of feedstock transportation pipeline 29 is sent to refine.5th dehvery pump 21 is defeated by the refined liquid of the bottom of refined liquid flash column 5
Be sent to refined liquid stripper 6, the 5th dehvery pump 21 simultaneously by refined liquid be transported to refined oil cooler 22 cool down recovery or
Person is again fed to the progress secondary solvent of feedstock transportation pipeline 29 and refined.Jet chimney 27 delivers a vapor to refined liquid stripper
6, stripping tower reduces hydrocarbon partial pressure using steam in the case of tower pressure is constant, more light components in refined liquid is isolated from tower top
Go.Extract oil cooler 17 out and be connected to feedstock transportation pipeline 29, extract oil cooler 17 out and be also connected to tapped oil holding vessel simultaneously
Area.Raw material pump intake is transported to for the underproof Extract of detection by feedstock transportation pipeline 29 to carry out repeating refined recovery,
Tapped oil storage tank field is transported to for detecting qualified Extract.Refined oil cooler 22 is connected to feedstock transportation pipeline 29,
Refined oil cooler 22 is also connected to refined oil storage tank field simultaneously.Pass through feed line for detecting underproof refined liquid
Road 29 is transported to raw material pump intake and carries out repeating refined recovery, and refined oil holding vessel is transported to for the refined liquid for detecting qualified
Area.The present invention is refined suitable for the waste lubricating oil process of reproduction, is adapted to the waste lubricating oil to being decolourized using decolouring sand
Recovery is refined, it is possible to achieve the continuous treating of lubricating oil, refining effect is good, and the lubricating oil quality of production is high.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. lubricating oil solvent system, it is characterised in that：The refining system includes an extraction tower, secondary extracting Tower, an effect flash column, two effect flash columns, refined liquid flash column, refined liquid stripper, solvent tank, vacuum buffer tank group, water seal Tank；Extraction tower top connects the solvent tank, a dehvery pump of extraction tower bottom first, primary heater connection The one effect flash column；The secondary extraction tower top connects the solvent tank, and secondary extraction tower connects an extraction tower, The secondary dehvery pump of extraction tower bottom second, the primary heater connection one effect flash column；The one effect flash column bottom warp 3rd dehvery pump, the secondary heater connection two effect flash columns top, effect flash column top the first cooler connection institute State vacuum buffer tank group；The second cooler of the two effect flash columns top connects the vacuum buffer tank group, two effect flash columns The dehvery pump of bottom the 4th is connected to extraction oil cooler；The refined liquid flash column connects through the 3rd heater, the 4th heater The secondary extraction tower top is connect, refined liquid flash column top connects the vacuum buffer tank group, refined liquid through the 3rd cooler Flash tower bottom and connect the refined oil cooler through the 5th dehvery pump；The heater of refined liquid stripper top the 5th, 5th dehvery pump connects the refined liquid flash distillation tower bottom, and refined liquid stripper top connects the vacuum through the 4th cooler and delayed Rush tank group, the refined oil cooler of the dehvery pump of refined liquid stripper bottom the 6th connection；The solvent tank connects the vacuum and delayed Rush tank group；The vacuum buffer tank group connects the water sealed tank.
- A kind of 2. lubricating oil solvent system according to claim 1, it is characterised in that：Extraction tower and two Secondary extraction tower is connected to the 7th dehvery pump through feed heater jointly, and the 7th dehvery pump uses screw pump, the 7th dehvery pump quantity For 2, the 7th dehvery pump connects feedstock transportation pipeline.
- A kind of 3. lubricating oil solvent system according to claim 1, it is characterised in that：The first dehvery pump connection Second dehvery pump, the first dehvery pump and the second dehvery pump are commonly connected to feedstock transportation pipeline.
- A kind of 4. lubricating oil solvent system according to claim 1, it is characterised in that：The number of 3rd dehvery pump Measure as 2, be connected with each other between 2 the 3rd dehvery pumps, the 3rd dehvery pump is used for the Extract for conveying an effect flash distillation tower bottom.
- A kind of 5. lubricating oil solvent system according to claim 1, it is characterised in that：The number of 5th dehvery pump Measure as 2, be connected with each other between 2 the 5th dehvery pumps, the 5th dehvery pump is used for the refined liquid for conveying refined liquid flash distillation tower bottom.
- A kind of 6. lubricating oil solvent system according to claim 1, it is characterised in that：The solvent tank is connected with molten Agent pump, solvent pump are used to unload the solvent in solvent tank, solvent pump quantity 2, are connected with each other between 2 solvent pumps.
- A kind of 7. lubricating oil solvent system according to claim 1, it is characterised in that：Under the refined liquid stripper Portion is connected with jet chimney.
- A kind of 8. lubricating oil solvent system according to claim 1, it is characterised in that：The vacuum buffer tank group bag 4 vacuum buffer tanks are included, the 5th cooler of connection, vacuum buffer pot bottom are connected to the water seal jointly for vacuum buffer tank top Tank.
- A kind of 9. lubricating oil solvent system according to claim 1, it is characterised in that：The extraction oil cooler connects Feedstock transportation pipeline is connected to, oil cooler is extracted out and is also connected to tapped oil storage tank field simultaneously.
- A kind of 10. lubricating oil solvent system according to claim 1, it is characterised in that：The refined oil cooler Feedstock transportation pipeline is connected to, refined oil cooler is also connected to refined oil storage tank field simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826529.2A CN107603727A (en) | 2017-09-14 | 2017-09-14 | A kind of lubricating oil solvent system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710826529.2A CN107603727A (en) | 2017-09-14 | 2017-09-14 | A kind of lubricating oil solvent system |
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| CN107603727A true CN107603727A (en) | 2018-01-19 |
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| CN201710826529.2A Pending CN107603727A (en) | 2017-09-14 | 2017-09-14 | A kind of lubricating oil solvent system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4390418A (en) * | 1982-05-12 | 1983-06-28 | Texaco Inc. | Recovery of solvent in hydrocarbon processing systems |
| CN106833736A (en) * | 2017-03-29 | 2017-06-13 | 山东铂铠环保科技有限公司 | A kind of method of waste oil regeneration base oil |
-
2017
- 2017-09-14 CN CN201710826529.2A patent/CN107603727A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4390418A (en) * | 1982-05-12 | 1983-06-28 | Texaco Inc. | Recovery of solvent in hydrocarbon processing systems |
| CN106833736A (en) * | 2017-03-29 | 2017-06-13 | 山东铂铠环保科技有限公司 | A kind of method of waste oil regeneration base oil |
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