CN109806713A - A kind of toluene waste gas processing method - Google Patents
A kind of toluene waste gas processing method Download PDFInfo
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- CN109806713A CN109806713A CN201910057639.6A CN201910057639A CN109806713A CN 109806713 A CN109806713 A CN 109806713A CN 201910057639 A CN201910057639 A CN 201910057639A CN 109806713 A CN109806713 A CN 109806713A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of toluene waste gas processing methods, toluene waste gas is recycled by condensate recovery system, then absorption system is conveyed into be absorbed, then it is desorbed in desorption system, rectifying recycling is carried out using toluene refining system, exhaust gas is finally adsorbed in carbon adsorption system using the washing process of water scrubber.The toluene in exhaust gas is recycled by condensing recovery, absorption system, desorption technique, toluene purification, washing and carbon adsorption system in the application, to reduce toluene loss, production cost is reduced, improves the benefit of production；Reduce the discharge of toluene simultaneously, so as to improve plant area environment, reduce the pollution of environment, ensure that operations staff's is healthy and safe, wherein for absorbing the solvent of toluene, by the way of recycling, the cost for reducing toluene waste gas processing, in addition, the two systems in carbon adsorption system are run and regenerated respectively, it is uninterrupted when to guarantee operation, it is lasting to carry out.
Description
Technical field
The present invention relates to chemical industry tail gas processing technology field more particularly to a kind of toluene waste gas processing methods.
Background technique
In the production process of toluene, it can be generated in tail gas and carry more exhaust gas containing toluene, due to toluene
With certain toxicity, steam is for human skin, the irritating effect of mucous membrane, while Central nervous system has anesthesia to make
Liver function can be influenced with, long term, and dimethylbenzene has moderate toxicity, human body mucous membrane be damaged at steam, outside respiratory tract,
Excited, anesthetic effect is also presented, toluene class organic exhaust gas causes human body to be easy to cause serious damage in a word, is in addition discharged into big
It also will affect environmental problem in gas, simultaneously because the escape of toluene influences factory's benefit so that making the yield of toluene reduces.
Summary of the invention
The object of the present invention is to provide a kind of toluene waste gas processing methods, solve the tail gas escape and dirt of toluene production
Dye environment and the problem of endangering Health Status For Workers Exposed.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
The present invention provides a kind of toluene waste gas processing methods, include the following steps: toluene waste gas by condensing recovery system
System is recycled, and is then conveyed into absorption system and is absorbed, is then desorbed in desorption system, refines system using toluene
System carries out rectifying recycling, and exhaust gas is finally adsorbed in carbon adsorption system using the washing process of water scrubber；
S1, condensate recovery system:
Toluene waste gas is admitted in compression condensation tank by air-introduced machine, and toluene is compressed to saturation state, is then being pressed
Pressurization condensation is carried out in contracting drainer, wherein condensate liquid is back to solvent tank by delivery pump conveying and is recycled, fixed gas
The bottom on absorption tower is sent into from the top of compression condensation tank；
S2, absorption system:
After not solidifying toluene waste gas therein enters absorption tower, is contacted with the absorbent lean solution in absorption tower and mass transfer occurs
Afterwards, insoluble gas is discharged from tower top and enters water scrubber, absorbent rich solution is discharged by tower bottom；The adsorbent of 15-30% is back to suction
It receives in the middle part of tower, the solution containing toluene of 70-85% enters desorber and carries out toluene recovery；Wherein absorbent is polyethylene glycol
50%-60%, phthalic acid ester 5%-30%, hexanedioic acid ester 15%-25% and silicone oil 5%-15%.Wherein absorbent includes
Polyethylene glycol 50%-60%, phthalic acid ester 5%-30%, hexanedioic acid ester 15%-25% and silicone oil 5%-15%
S3, desorption system:
Into the heated desorption of absorbent rich solution in desorber, condense to obtain crude cresylic acid in the overhead components of desorber,
The crude cresylic acid separated later enters flash vessel and is refined；In addition the absorbent lean solution after desorber desorption is back to absorbent storage
Tank, to realize the recycling of absorbent lean solution；
S4, toluene refining system:
After flash vessel refines, refined toluene gas is discharged crude cresylic acid by the top of flash vessel, is back to after condensing molten
Agent storage tank recycles；The smart refluxing toluene not steamed is to desorbing tower bottom；
S5, water wash system:
The exhaust gas absorbed through absorption tower enters water scrubber and is washed, and removes water-soluble volatile organic compounds VOC
After ingredient, into carbon adsorption system；Water scrubber is recycled with the 80-90% of water section, and 10-20%'s is highly concentrated useless
Liquid is discharged into waste water treatment system.
S6, carbon adsorption system:
Two sets of identical activated carbon fibers and particle canister adsorbent equipment are used in carbon adsorption system, wherein a set of absorption fills
It sets and is adsorbed, while another set of adsorbent equipment parse and dry work, circulation mutually switches and shares one when operation
Circuits system.Wherein, absorption is entered after the tail gas of water-insoluble volatile organic compounds VOC composition is pressurizeed by blower
Case.
Further, wherein a set of adsorbent equipment of the carbon adsorption system is adsorbed, while another set of adsorbent equipment
Parse and dry work, exchange-column shift be used in combination, real-time online monitoring, when in a set of carbon adsorption device activated carbon fiber and
After particle canister reaches the preset time of adsorption saturation, control automatic valve progress is another set of to have been subjected to regenerated activated carbon fiber
Absorption work is carried out with particle canister.When operation, tail gas is entered by absorption lower box part, and solvent therein is adsorbed by activated carbon fiber
Get off, purified cleaning acceptable gas is discharged from the top of adsorption box, and enters carbon particle adsorption box, wherein carbon particle is inhaled
The method of operation of attached case is identical as fibers adsorption case.
Further, when the activated carbon fiber in the carbon adsorption system or after particle canister adsorption saturation, to absorption
Saturated vapor is passed through in device to be desorbed, desorb the liquid-vapor mixture to get off enter in condenser again by water at low temperature exchange heat into
Row cooling.In the liquid phase mixture condensed out, the gas-liquid phase mixture that condenses out through vapour liquid separator carry out sufficient gas,
After liquid separation, liquid phase substance carries out further water-oil separating, and upper layer substance to solvent tank is recycled, and aqueous phase substance enters
Wastewater disposal basin is used as condensed water.
Further, from gas-liquid separator, the gas of isolated gas phase fixed gas and storage tank volatilization, wherein entrainment
This portion gas is introduced engine manifold by organic matter VOC, is introduced absorbing recovery device by blower and is carried out circulation absorption recycling.
Absorption casing after desorption completion introduces nitrogen by high pressure blower, to be purged and be cooled down to activated carbon fiber；?
While cooling to acf layer, also remaining vapour molecule is taken away and condensed out, to guarantee activated carbon
The optimal adsorption state of fiber.
Compared with prior art, advantageous effects of the invention: pass through condensing recovery, absorption system, solution in the application
The toluene inhaled in technique, toluene purification, washing and carbon adsorption system recycling exhaust gas reduces production to reduce toluene loss
Cost improves the benefit of production；Reduce the discharge of toluene simultaneously, so as to improve plant area environment, reduce environment
Pollution, has ensured that operations staff's is healthy and safe, wherein for absorbing the solvent of toluene, by the way of recycling, reduces
The cost of toluene waste gas processing, in addition, the two systems in carbon adsorption system are run and regenerated respectively, to guarantee to transport
It is uninterrupted when row, it is lasting to carry out.
Detailed description of the invention
The invention will be further described for explanation with reference to the accompanying drawing.
Fig. 1 is the flow process figure of toluene waste gas processing method of the present invention；
Fig. 2 is the flow diagram of toluene waste gas processing method of the present invention；
Specific embodiment
Embodiment 1
A kind of toluene waste gas processing method includes the following steps: that toluene waste gas is recycled by condensate recovery system, connects
Be conveyed into absorption system and absorbed, then desorbed in desorption system, carry out rectifying using toluene refining system and return
It receives, exhaust gas is finally adsorbed in carbon adsorption system using the washing process of water scrubber；
The processing step of S1, condensate recovery system:
Condensate recovery system includes tail gas air-introduced machine, tail gas condenser, tail gas buffer and condensation toluene elevator pump.First
Benzene exhaust air is admitted in compression condensation tank by air-introduced machine, and toluene is compressed to saturation state, then in compression condensation tank,
It is pressurizeed and is condensed by the positive pressure of 5000Pa, wherein condensate liquid is back to solvent storage by condensation toluene elevator pump conveying
Slot is recycled, and fixed gas is sent into the bottom on absorption tower from the top of compression condensation tank；
The processing step of S2, absorption system:
The absorption system includes absorbent storage tank, absorbent circulating pump, absorption tower, rich solution reflux condenser, lean solution time
Flow condenser and rich solution elevator pump.
After not solidifying toluene waste gas therein enters absorption tower, is contacted with the absorbent lean solution in absorption tower and mass transfer occurs
Afterwards, insoluble gas is discharged from tower top and enters water scrubber；Absorbent rich solution is discharged by tower bottom, and 22% adsorbent is back to absorption tower
Middle part, 78% solution containing toluene enter desorber and carry out toluene recovery；
Wherein absorbent is polyethylene glycol 55%, phthalic acid ester 16%, hexanedioic acid ester 21% and silicone oil 8%.
The processing step of S3, desorption system:
The desorption system includes rich solution preheater, desorber, lean solution elevator pump, crude toluene condenser.Into desorption
Absorbent rich solution in tower carries out heating desorption through rich solution preheater, passes through crude toluene condenser in the overhead components of desorber
Condensation obtains crude cresylic acid, and the crude cresylic acid separated later enters flash vessel and refined；In addition absorbent of the desorber solution after inhaling
Lean solution is back to absorbent storage tank by lean solution elevator pump, to realize the recycling of absorbent lean solution；
The processing step of S4, toluene refining system:
The toluene refining system includes flash vessel, refined toluene condenser and crude cresylic acid reflux pump.
Crude cresylic acid after flash vessel refines, arranged by the top of flash vessel by refined toluene condenser by refined toluene gas
Out, it is back to solvent tank after condensing, recycles；The smart toluene not steamed is back to desorber by crude cresylic acid reflux pump
Bottom；
The processing step of S5, water wash system:
The water wash system is blower, water scrubber, water circulating pump, circulation water pot, and the exhaust gas absorbed through absorption tower enters water
It washes tower and is washed, after removing water-soluble volatile organic compounds VOC ingredient, into carbon adsorption system；The use of water scrubber
The 89% of water section is recycled, and 11% highly concentrated waste liquid is discharged into waste water treatment system；
The processing step of S6, carbon adsorption system:
The carbon adsorption system includes complete fibrous carbon adsorbent equipment and complete granulated carbon adsorbent equipment.
Two sets of identical set fibrous carbon adsorbent equipments and complete granulated carbon adsorbent equipment are used in carbon adsorption system, wherein one
Set adsorbent equipment is adsorbed, while another set of adsorbent equipment parse and dry regeneration, when operation, recycles mutually switching simultaneously
And share a set of pipe-line system.Wherein, the tail gas of water-insoluble volatile organic compounds VOC composition is pressurizeed laggard by blower
Enter adsorption box.
In the present embodiment, wherein a set of adsorbent equipment of the carbon adsorption system is adsorbed, while another set of absorption fills
It sets and carries out parsing and dry work, real-time online monitoring switches over after reaching setting time, when in a set of carbon adsorption device
After activated carbon fiber and particle canister reach the preset time of adsorption saturation, control automatic valve progress is another set of to have been subjected to regeneration
Activated carbon fiber and particle canister, and carry out absorption work.When operation, tail gas is entered by absorption lower box part, solvent therein
It is absorbed by activated carbon fiber, purified cleaning acceptable gas is discharged from the top of adsorption box, and enters carbon particle and adsorb
Case.
When the activated carbon fiber in the carbon adsorption system or after particle canister adsorption saturation, it is passed through into adsorbent equipment full
It is desorbed with steam, desorbs the liquid-vapor mixture to get off and enter in condenser and cooled down again by water at low temperature heat exchange.Condensation
In the liquid phase mixture to get off, the gas-liquid phase mixture condensed out is after vapour liquid separator carries out sufficient air-liquid separation, liquid
Phase substance carries out further water-oil separating, and upper layer substance to solvent tank is recycled, and aqueous phase substance enters wastewater disposal basin or work
For condensed water use.
From gas-liquid separator, the gas of isolated gas phase fixed gas and storage tank volatilization, wherein carried organic matter VOC secretly,
This portion gas is introduced into engine manifold, absorbing recovery device is introduced by blower and carries out circulation absorption recycling.Completion is desorbed
Absorption casing afterwards introduces nitrogen by high pressure blower, to be purged and be cooled down to activated carbon fiber；To active carbon fiber
While dimension layer is cooled down, also remaining vapour molecule is taken away and condensed out, to guarantee the best of activated carbon fiber
Adsorbed state.
Activated carbon adsorber can be more applicable to the exhaust gas adsorption recovery of the organic solvents such as benzene, alcohol, ketone, an ancient drinking vessel, ester, gasoline class
In the waste gas pollution control and treatment of small air quantity high concentration, therefore spraying, food processing, printed circuit board, semiconductors manufacture, chemical industry, electronics, system
The industries such as paper Industry, latex product industry, papermaking can be selected.Active carbon adsorption equipment mainly utilizes porous solid adsorbent living
Property charcoal there is suction-operated, can effectively eliminate except the organic polluter and color and taste etc. in industrial waste gas, be widely used in work
The end-o f-pipe -control of industry organic waste-gas purification, clean-up effect are good.Gas is after pipeline enters absorption tower, in two different phase interfaces
Between generate diffusion process, diffusion terminates, and gas is sucked out and is emitted by blower.
Table 1
| Title | Parameter |
| Toluene level | > 200g/m3 |
| Tail gas pressure | 0.1MPa |
| Exhaust temperature | 45℃ |
| Impurity | < 1g/m3 |
Table 2
The working principle of the invention process is as follows:
Toluene waste gas enters absorption tower, and the absorption tower rich solution after mass transfer exchange is carried out in absorption tower enters desorber, solves
Analysis tower solution sucks the lean solution utilized and returns to absorption tower, recycles, the tower top toluene gas of Analytic Tower is back to molten after condensing
Agent storage tank reuse；Insoluble gas in absorption tower enters water scrubber, enters carbon adsorption system after water washed, is then discharged out clean
Air.
Toluene waste gas processing method provided by the invention is applied through detection, the recovery process toluene solvant rate of recovery is greater than
95%, the exhaust emission standard that meets that treated is using " industrial enterprise's Volatile organic emissions control standard " (DB 13/
2322-2018) requirement is no more than 15mg/m3。
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Embodiment described above is only that the preferred embodiment of the invention is described, not to the scope of the present invention
It is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical solution of the present invention
The various changes and improvements made should all be fallen into the protection scope that claims of the present invention determines.
Claims (4)
1. a kind of toluene waste gas processing method, characterized by the following steps: toluene waste gas by condensate recovery system into
Row recycling, be then conveyed into absorption system and absorbed, then desorbed in desorption system, using toluene refining system into
Row rectifying recycling, exhaust gas are finally adsorbed in carbon adsorption system using the washing process of water scrubber；
S1, condensate recovery system:
Toluene waste gas is admitted in compression condensation tank by air-introduced machine, and toluene is compressed to saturation state, then cold in compression
Pressurization condensation is carried out in solidifying tank, wherein condensate liquid is conveyed by delivery pump is back to solvent tank and is recycled, and fixed gas is from pressure
The bottom on absorption tower is sent at the top of contracting drainer；
S2, absorption system:
After not solidifying toluene waste gas therein enters absorption tower, after contacting with the absorbent lean solution in absorption tower and mass transfer occur, from
The insoluble gas of tower top discharge enters water scrubber, and absorbent rich solution is discharged by tower bottom, and the adsorbent of 15-30% is back to absorption tower
Middle part, the solution containing toluene of 70-85% enter desorber and carry out toluene recovery；
Wherein absorbent include polyethylene glycol 50%-60%, phthalic acid ester 5%-30%, hexanedioic acid ester 15%-25% and
Silicone oil 5%-15%.
S3, desorption system:
Into the heated desorption of absorbent rich solution in desorber, condense to obtain crude cresylic acid in the overhead components of desorber, later
Isolated crude cresylic acid enters flash vessel and is refined；In addition the absorbent lean solution after desorber desorption is back to absorbent storage tank,
To realize the recycling of absorbent lean solution；
S4, toluene refining system:
After flash vessel refines, refined toluene gas is discharged crude cresylic acid by the top of flash vessel, and solvent storage is back to after condensing
Slot recycles；The smart refluxing toluene not steamed is to desorbing tower bottom；
S5, water wash system:
The exhaust gas absorbed through absorption tower enters water scrubber and is washed, and removes water-soluble volatile organic compounds VOC ingredient
Afterwards, into carbon adsorption system；Water scrubber is recycled with the 80-90% of water section, and the highly concentrated waste liquid of 10-20% is discharged into
Waste water treatment system.
S6, carbon adsorption system:
In carbon adsorption system use two sets of identical activated carbon fibers and particle canister adsorbent equipment, wherein a set of adsorbent equipment into
Row absorption, while another set of adsorbent equipment parse and dry work, circulation mutually switches and shares sleeve when operation
Road system.Wherein, adsorption box is entered after the tail gas of water-insoluble volatile organic compounds VOC composition is pressurizeed by blower.
2. toluene waste gas processing method according to claim 1, it is characterised in that: the carbon adsorption system it is wherein a set of
Adsorbent equipment is adsorbed, while another set of adsorbent equipment parse and dry work, exchange-column shift are simultaneously supervised with real-time online
Control, when in a set of carbon adsorption device activated carbon fiber and particle canister reach the preset time of adsorption saturation after, control is automatic
Valve carries out another set of having been subjected to regenerated activated carbon fiber and particle canister carries out absorption work.When operation, tail gas is by adsorbing
Lower box part enters, and solvent therein absorbed by activated carbon fiber, and purified cleaning acceptable gas is from the top of adsorption box
Discharge, and enter carbon particle adsorption box, wherein the method for operation of carbon particle adsorption box is identical as fibers adsorption case.
3. toluene waste gas processing method according to claim 1, it is characterised in that: the activity in the carbon adsorption system
After carbon fiber or particle canister adsorption saturation, saturated vapor being passed through into adsorbent equipment and is desorbed, it is mixed to desorb the vapour-liquid got off
Conjunction object enters in condenser to be cooled down by water at low temperature heat exchange again.In the liquid phase mixture condensed out, the gas that condenses out
For liquid phase mixture after vapour liquid separator carries out sufficient air-liquid separation, liquid phase substance carries out further water-oil separating, upper layer substance
Matter to solvent tank is recycled, and aqueous phase substance enters wastewater disposal basin or uses as condensed water.
4. toluene waste gas processing method according to claim 1, it is characterised in that: from gas-liquid separator, isolated gas
This portion gas is introduced engine manifold, passes through wind by the gas of phase fixed gas and storage tank volatilization wherein having carried organic matter VOC secretly
Power traction enters absorbing recovery device and carries out circulation absorption recycling.Absorption casing after desorption completion, introduces nitrogen by high pressure blower
Gas, to be purged and be cooled down to activated carbon fiber；While cooling down to acf layer, also by remaining water
Vapour molecule is taken away and is condensed out, to guarantee the optimal adsorption state of activated carbon fiber.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420476A (en) * | 2019-08-08 | 2019-11-08 | 湖北科林博伦新材料有限公司 | A kind of toluene liquid-phase air oxidation legal system benzyl alcohol reaction end gas processing system and method |
| CN110523219A (en) * | 2019-09-10 | 2019-12-03 | 艾凡佳德(上海)环保科技有限公司 | A kind of processing system and its application method of the industrial tail gas containing ethylene glycol |
| CN111495150A (en) * | 2020-04-20 | 2020-08-07 | 扬州天启新材料股份有限公司 | Organic waste gas recovery treatment process in industrial cyanate resin production |
| CN112403200A (en) * | 2019-08-20 | 2021-02-26 | 中国石油化工股份有限公司 | Treatment process of styrene-containing waste gas |
| CN112675663A (en) * | 2020-11-26 | 2021-04-20 | 浙江工业大学 | Toluene tail gas treatment method |
| CN114042362A (en) * | 2021-11-02 | 2022-02-15 | 内蒙古伊诺新材料有限公司 | Purification recovery process and purification treatment equipment for waste gas containing volatile organic compounds |
| CN114425223A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Tetrahydrofuran tail gas recovery system, method and application |
| CN117717878A (en) * | 2024-01-31 | 2024-03-19 | 成都理工大学 | Ionic liquid and method for efficiently absorbing toluene waste gas at normal pressure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772734A (en) * | 1997-01-24 | 1998-06-30 | Membrane Technology And Research, Inc. | Membrane hybrid process for treating low-organic-concentration gas streams |
| CN202212089U (en) * | 2011-09-06 | 2012-05-09 | 青岛华世洁环保科技有限公司 | Device for processing high-concentration large-volume organic gas |
| CN105327591A (en) * | 2014-08-15 | 2016-02-17 | 北京日新达能技术有限公司 | Organic exhaust-gas processing method |
| CN105344206A (en) * | 2015-11-11 | 2016-02-24 | 天津天清环保科技股份有限公司 | Method and device for processing VOCs in industrial waste gas |
| CN105879423A (en) * | 2016-05-16 | 2016-08-24 | 湖北楚天蓝环保设备工程有限公司 | Benzene recovering and treating device and treating method thereof |
| CN106606917A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Method and apparatus for f toluene oxidation tail gas treatment |
| CN107774097A (en) * | 2017-09-29 | 2018-03-09 | 北京石油化工学院 | A kind of handling process of VOCs waste gas |
| CN109126362A (en) * | 2018-10-24 | 2019-01-04 | 上海天汉环境资源有限公司 | A kind of vacuum exhaust-gas treatment recovery system and its technique |
-
2019
- 2019-01-22 CN CN201910057639.6A patent/CN109806713A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772734A (en) * | 1997-01-24 | 1998-06-30 | Membrane Technology And Research, Inc. | Membrane hybrid process for treating low-organic-concentration gas streams |
| CN202212089U (en) * | 2011-09-06 | 2012-05-09 | 青岛华世洁环保科技有限公司 | Device for processing high-concentration large-volume organic gas |
| CN105327591A (en) * | 2014-08-15 | 2016-02-17 | 北京日新达能技术有限公司 | Organic exhaust-gas processing method |
| CN106606917A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Method and apparatus for f toluene oxidation tail gas treatment |
| CN105344206A (en) * | 2015-11-11 | 2016-02-24 | 天津天清环保科技股份有限公司 | Method and device for processing VOCs in industrial waste gas |
| CN105879423A (en) * | 2016-05-16 | 2016-08-24 | 湖北楚天蓝环保设备工程有限公司 | Benzene recovering and treating device and treating method thereof |
| CN107774097A (en) * | 2017-09-29 | 2018-03-09 | 北京石油化工学院 | A kind of handling process of VOCs waste gas |
| CN109126362A (en) * | 2018-10-24 | 2019-01-04 | 上海天汉环境资源有限公司 | A kind of vacuum exhaust-gas treatment recovery system and its technique |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420476A (en) * | 2019-08-08 | 2019-11-08 | 湖北科林博伦新材料有限公司 | A kind of toluene liquid-phase air oxidation legal system benzyl alcohol reaction end gas processing system and method |
| CN110420476B (en) * | 2019-08-08 | 2024-06-25 | 湖北科林博伦新材料有限公司 | System and method for treating tail gas of reaction for preparing benzyl alcohol by toluene liquid-phase air oxidation method |
| CN112403200A (en) * | 2019-08-20 | 2021-02-26 | 中国石油化工股份有限公司 | Treatment process of styrene-containing waste gas |
| CN110523219A (en) * | 2019-09-10 | 2019-12-03 | 艾凡佳德(上海)环保科技有限公司 | A kind of processing system and its application method of the industrial tail gas containing ethylene glycol |
| CN111495150A (en) * | 2020-04-20 | 2020-08-07 | 扬州天启新材料股份有限公司 | Organic waste gas recovery treatment process in industrial cyanate resin production |
| CN114425223A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Tetrahydrofuran tail gas recovery system, method and application |
| CN112675663A (en) * | 2020-11-26 | 2021-04-20 | 浙江工业大学 | Toluene tail gas treatment method |
| CN114042362A (en) * | 2021-11-02 | 2022-02-15 | 内蒙古伊诺新材料有限公司 | Purification recovery process and purification treatment equipment for waste gas containing volatile organic compounds |
| CN117717878A (en) * | 2024-01-31 | 2024-03-19 | 成都理工大学 | Ionic liquid and method for efficiently absorbing toluene waste gas at normal pressure |
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Application publication date: 20190528 |
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| RJ01 | Rejection of invention patent application after publication |