CN106334411A - Method and device for recovering organic waste gas in petrochemical industry - Google Patents
Method and device for recovering organic waste gas in petrochemical industry Download PDFInfo
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- CN106334411A CN106334411A CN201610919854.9A CN201610919854A CN106334411A CN 106334411 A CN106334411 A CN 106334411A CN 201610919854 A CN201610919854 A CN 201610919854A CN 106334411 A CN106334411 A CN 106334411A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/0476—Vacuum pressure swing adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical Kinetics & Catalysis (AREA)
- Separation Of Gases By Adsorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a method and device for recovering organic waste gas in the petrochemical industry. The mode that a multi-stage cascade efficient and energy-saving condensation technology, a membrane separation technique and a pressure swing adsorption technology are coupled, the method and the device are suitable for refining and chemical gas of the petrochemical industry, process discharge gas, breathing exhaust gas of storage cylinders, volatile gas from loading-unloading stations and other occasions producing organic waste gas, and the discharge indexes of discharged gas after recovery treatment meet the newest discharge standards in out country.
Description
[technical field]
The invention belongs to gas recycling technical field, it is related to a kind of organic exhaust gas recycling and processing device and in particular to one kind
The method and apparatus reclaiming petrochemical industry organic exhaust gas.
[background technology]
Vocs has denseer stink, zest and toxicity, easily forms organic fine particle in an atmosphere, is the presoma of pm2.5,
It is also one of the reason cause haze.National industrial source vocs annual emissions are about 15,000,000 tons at present, wherein petrochemical industry, build
Build decoration, machine-building and print for four big primary discharge sources, accounting 17%, 16%, 11% and 7% respectively.First row amplifies family stone
Changing industry vocs emission source mainly has two big class, and a class is the process tail gas of such as oil refining discharge, accounts for the 15% of its total discharge
Left and right；Another kind of be oil product storage tank area, loading platform etc. respiratory gass or Volatile Gas, its discharge capacity accounts for 45%.
For petrochemical industry first kind organic exhaust gas, current conventional treatment method is to enter torch burning, or simple absorption
Discharge after process, discharge gas hydro carbons concentration is difficult to up to standard.For Equations of The Second Kind organic exhaust gas, due to containing the weight such as polycyclic aromatic hydrocarbon
Component, domestic at present most employing condensation, absorption and sorption, burning and combinations thereof handling process, most of vocs can be processed, but
Operating cost remains high it is difficult to stably reaching standard discharges, still in process optimization, overall performance improvement stage.
The technology of ripe petrochemical industry organic exhaust gas recycling at present is monopolized by developed countries such as America and Europes.For example, the U.S.
Air products company adopts the recovery processing technique (Patent No. us6576043b2) of compression condensation+pressure-variable adsorption, first will
Process air pressure and be reduced to more than 3.0mpa, then pass through multi-stage condensing, the temperature of place's qi-regulating is reduced to less than -45 DEG C and reclaims wherein
Most hydro carbons, then through pressure-variable adsorption reclaim almost all of hydro carbons.But this technique compressibility invests high power consumption greatly, place
Dust in qi-regulating can have a strong impact on compressor and whole system safety and stability；Acticarbon mechanical strength is not high, uncomfortable
Answer long period pressure swing adsorption operations, regeneration is difficult, and package unit operating cost is high.
The present invention is many for change industry production complex process, product category, produces the volatile organic waste gas of discharge
(vocs) the features such as composition is various, using the energy-efficient condensation technology of multistage superposition type, advanced membrane separation technique and proprietary
The mode that pressure swing adsorption is coupled, provide a kind of reclaim the coupling process of petrochemical industry organic exhaust gas and device it is adaptable to
Petrochemical industry refinery tail gas, technique are discharged gas, the Big and Small Breath waste gas of storage tank, loading platform Volatile Gas etc. and are produced organic exhaust gas
Occasion, the discharge index of recovered improvement heel row venting reaches the up-to-date discharge standard of China.
[content of the invention]
The technical problem to be solved is, the shortcoming overcoming prior art, provides and a kind of reclaims petrochemical industry organic waste
The method and device of gas, solves the problems, such as that petrochemical industry organic exhaust gas reclaim and is difficult to qualified discharge.
The technical scheme that the present invention solves above technical problem is:
A kind of device reclaiming petrochemical industry organic exhaust gas is it is characterised in that include surge tank, blower fan, condensing units, membrance separation
Device, membrance separation vacuum pump, adsorbent equipment, desorption vacuum pump, product gas/oil tank, product gas/oil pump and chimney；Described surge tank
Connect to blower fan, the controlled connection of blower fan is to condensing units or adsorbent equipment；The one outlet of condensing units connects gas/oil to product
Tank, another exports controlled connection to membrane separator or adsorbent equipment；Membrane separator is respectively connecting to adsorbent equipment and membrance separation
Vacuum pump, membrance separation vacuum pump connects to surge tank；Adsorbent equipment is respectively connecting to chimney and desorption vacuum pump, is desorbed vacuum pump
Connect to surge tank；Product gas/oil tank is interconnected with surge tank, and product gas/oil tank is additionally coupled to product gas/oil pump.
A kind of method reclaiming petrochemical industry organic exhaust gas is it is characterised in that using condensation, membrance separation, adsorb three groups of modules
Coupling, to surge tank, blower fan, condensing units, membrane separator, membrance separation vacuum pump, adsorbent equipment, desorption vacuum pump, product gas/
Oil tank, product gas/oil pump and chimney carry out flexible combination, and petrochemical industry organic exhaust gas are reclaimed, and non-methane hydrocarbon reclaims
Rate is more than 99%:
(1) it is directed to petrochemical industry refinery tail gas, after organic exhaust gas buffered tank voltage stabilizing, adsorbent equipment is entered by blower fan, according to
Vent gas treatment amount and component are different, select the quantity of tower.Purified gas after adsorption treatment pass through chimney qualified discharge, under absorption
The product gas come send into surge tank after desorption vacuum pump desorption, enter product gas tank, product gas conduct after buffered tank voltage stabilizing
Industrial chemicals are pumped into workshop through product gas and are recycled.
(2) it is directed to the Volatile Gas containing heavy constituents such as aromatic hydrocarbon such as petrochemical industry tank field and loading platform, organic exhaust gas are first
Enter surge tank and carry out voltage stabilizing, then enter condensing units through blower fan, organic exhaust gas enter gas-liquid separation after three-level condensation
Device carries out gas-liquid separation, and the cryogenic gas after separating carries out heat exchange with the organic exhaust gas entering first-stage condenser, then enters
Enter membrane separator, the material that gas-liquid separator separates go out enters product gas/oil tank and sends into pipeline through product gas/oil pump.Divided by film
Organic gas after device separation enters adsorbent equipment, and the purified gas after adsorption treatment pass through chimney qualified discharge, under absorption
The material coming material of being separated with membrane separator after vacuum pump desorption is followed through sending into surge tank 1 together with film vacuum pump
Ring is processed.
(3) it is directed to the organic exhaust gas of the high concentration interruption of petrochemical industry harbour volatilization, organic exhaust gas are introduced into surge tank and enter
Row voltage stabilizing, then enters condensing units through blower fan, and organic exhaust gas entrance gas-liquid separator after three-level condensation carries out gas-liquid and divides
From the cryogenic gas after separating carries out heat exchange with the organic exhaust gas entering first-stage condenser, subsequently enters adsorbent equipment, gas
The material that liquid/gas separator is isolated enters product gas/oil tank and sends into pipeline through product gas/oil pump.Purified gas after adsorption treatment
By chimney qualified discharge, the material absorbing is sent into surge tank after vacuum pump desorption and is circulated process.
The invention has the advantages that and beneficial effect:
(1) present invention is many for petrochemical industry complex manufacturing, product category, produces the volatile organic waste gas composition of discharge
Various the features such as, is it is adaptable to petrochemical industry refinery tail gas, technique discharge gas, the Big and Small Breath waste gas of storage tank, loading platform volatilize
Gas etc. produces the various occasions of organic exhaust gas,
(2) condensing units adopt three-level gradient cooling, bring system condenser to block up for preventing organic exhaust gas in condensation process from freezing
Plug, condenser adopts the dual pathways to design, automatically starting ice melting system.Develop energy-conservation deicing technique, heat exchange system and
Heat exchanger is it is achieved that the comprehensive utilization of system self-energy is it is ensured that system stable operation and energy consumption is minimum.
(3) can be different according to vent gas treatment amount and component, select multi-stage condensing, membrance separation and three groups of modules of pressure-variable adsorption not
Same coupled modes are it is achieved that petrochemical industry organic exhaust gas low cost resource reclaims and purified treatment qualified discharge.
[brief description]
Fig. 1 is the device connection diagram of the present invention
[specific embodiment]
Embodiment 1
As Fig. 1, a kind of device of recovery petrochemical industry organic exhaust gas, including surge tank 1, blower fan 2, condensing units 3, membrane separator
8th, membrance separation vacuum pump 11, adsorbent equipment 9, desorption vacuum pump 10, product gas/oil tank 13, product gas/oil pump 14 and chimney 15.
Surge tank 1 connects to blower fan 2, another entrance of the controlled connection of blower fan 2 to first-stage condenser 4 or adsorbent equipment 9.Membrane separator
8 are respectively connecting to adsorbent equipment 9 and membrance separation vacuum pump 11, and membrance separation vacuum pump 11 connects to surge tank 1；9 points of adsorbent equipment
Do not connect to chimney 15 and desorption vacuum pump 10, desorption vacuum pump 10 connects to surge tank 1；Product gas/oil tank 13 and surge tank 1
Interconnection, product gas/oil tank 13 is additionally coupled to product gas/oil pump 14.
Condensing units 3 are by first-stage condenser 4, secondary condenser 5, three-level condenser 6, knockout drum 7 and compressor 12
Composition.One ~ three-level condenser 4,5,6 and knockout drum 7 are sequentially connected with.Knockout drum 7 is provided with two outlets, one of
Outlet connects to an entrance of first-stage condenser 4, and another outlet connects to product gas/oil tank 13.The one of first-stage condenser 4
The controlled connection of individual outlet (another outlet connects secondary condenser 5) is to membrane separator 8 or adsorbent equipment 9.Compressor 12 and two
Level condenser 5, three-level condenser 6 interconnect, to two grades, three-level condenser condensing refrigerant.Every first-stage condenser is all steamed containing two
Send out device, when a passage frosting need to carry out defrosting operation, another passage can be automatically switched to it is ensured that system stable operation and energy
Consumption is minimum.
Adsorbent equipment 9, by the way of multitower parallel connection, loads in mixture filling using activated carbon and silicoaluminophosphate molecular sieve adsorbant, absorption
Agent regeneration is using vacuum pumping transformation desorption；Every tower replaces switchover operation each in different working conditions, wherein all the time
A tower is had to be in adsorbed state, a tower is in detachment status.
Embodiment 2
The implementation case is a kind of coupling process reclaiming petrochemical industry machine waste gas, and equipment connects as indicated by a broken line in fig. 1, including slow
Rush tank 1, blower fan 2, adsorbent equipment 9, desorption vacuum pump 10, product gas/oil tank 13, product gas/oil pump 14 and chimney 15；For low
Concentration, multicomponent, low pressure refinery tail gas, by the substantial amounts of hydro carbons (cxhy) containing low concentration producing in Refining Chemical Industry production process
Tail gas, its hydrocarbon component mainly has ethylene, propylene etc., and Balance Air is nitrogen.Particularly as follows:
After the buffered tank of organic exhaust gas 1 voltage stabilizing, adsorbent equipment 9 is entered by blower fan 2, different according to vent gas treatment amount and component,
Select the quantity of tower., one section is purified it is ensured that being purified to tail gas (hydrocarbon component least concentration 13%) taking two section of six tower as a example
< hydro carbons is reclaimed in 1% (v), the purified gas return system after process or directly discharge to gas NMHC concentration simultaneously to greatest extent
Component (concentration about 50%) enters two-stage nitration；Two-stage nitration mainly improves product gas concentration to more than 92%, meets agent set to product gas
Prescription, guarantees hydrocarbon recovery more than 96% simultaneously.Two-stage nitration purified gas return again to one section of entrance circular treatment.Every section all has
Six towers replace switchover operation each in different operating step, have a tower absorption all the time, and two towers all boost or blood pressure lowering, and two towers are taken out very
Empty complementary balanced desorbing, a tower product gas displacement.Purified gas after adsorption treatment pass through chimney 15 qualified discharge, absorb
Product gas through desorption vacuum pump 10 desorption after send into surge tank, after buffered tank voltage stabilizing enter product gas tank 13, product gas make
It is transported to workshop for industrial chemicals through product air pump 14 to be recycled.
Embodiment 3
The implementation case is a kind of coupling process reclaiming petrochemical industry machine waste gas, and equipment connects as shown in figure 1, including surge tank
1st, blower fan 2, the condensation being made up of first-stage condenser 4, secondary condenser 5, three-level condenser 6, knockout drum 7 and compressor 12
Device 3, membrane separator 8, membrance separation vacuum pump 11, adsorbent equipment 9, desorption vacuum pump 10, product gas/oil tank 13, product are gas/oil
Pump 14 and chimney 15；Contain the organic exhaust gas of the heavy constituents such as aromatic hydrocarbon for petrochemical industry tank field and loading platform, particularly as follows:
Organic exhaust gas are introduced into surge tank 1 and carry out voltage stabilizing, then enter condensing units 3 through blower fan 2, organic exhaust gas are cold through three-level
Enter gas-liquid separator 7 after solidifying and carry out gas-liquid separation, the cryogenic gas after separating is entered with the organic exhaust gas entering first-stage condenser 4
Row heat exchange, subsequently enters membrane separator 8, and the material that gas-liquid separator 7 is isolated enters product gas/oil tank 13 through product
Pipeline sent into by gas/oil pump 14.Organic gas after being separated by membrane separator 8 enters adsorbent equipment 9, the purification after adsorption treatment
Gas passes through chimney 15 qualified discharge, the material that the material absorbing is separated with membrane separator 8 after vacuum pump 10 desorption
Send into surge tank 1 together through film vacuum pump 11 and be circulated process.
Embodiment 4
The implementation case is a kind of coupling process reclaiming petrochemical industry machine waste gas and device, and equipment connects as indicated by a broken line in fig. 1,
Including surge tank 1, blower fan 2, by first-stage condenser 4, secondary condenser 5, three-level condenser 6, knockout drum 7 and compressor 12
The condensing units 3 of composition, adsorbent equipment 9, desorption vacuum pump 10, product gas/oil tank 13, product gas/oil pump 14 and chimney 15；With
In the organic exhaust gas of the high concentration interruption of petrochemical industry harbour volatilization, particularly as follows:
Organic exhaust gas are introduced into surge tank 1 and carry out voltage stabilizing, then enter condensing units 3 through blower fan 2, organic exhaust gas are cold through three-level
Enter gas-liquid separator 7 after solidifying and carry out gas-liquid separation, the cryogenic gas after separating is entered with the organic exhaust gas entering first-stage condenser 4
Row heat exchange, subsequently enters adsorbent equipment 9, and the material that gas-liquid separator 7 is isolated enters product gas/oil tank 13 through product
Pipeline sent into by gas/oil pump 14.Purified gas after adsorption treatment pass through chimney 15 qualified discharge, and the material absorbing is through vacuum
Send into surge tank 1 after pump 10 desorption and be circulated process.
In addition to the implementation, the present invention can also have other embodiment, can be selected according to vent gas treatment amount and component
The coupled modes of multi-stage condensing, membrance separation and three groups of modules of pressure-variable adsorption.All employing equivalents or the skill of equivalent transformation formation
Art scheme, all falls within the protection domain of application claims.
Claims (6)
1. a kind of device reclaiming petrochemical industry organic exhaust gas is it is characterised in that include surge tank (1), blower fan (2), condensation dress
Put (3), membrane separator (8), membrance separation vacuum pump (11), adsorbent equipment (9), desorption vacuum pump (10), product gas/oil tank
(13), product gas/oil pump (14) and chimney (15)；Described surge tank (1) connects to blower fan (2), and the controlled connection of blower fan (2) is extremely cold
Solidifying device (3) or adsorbent equipment (9)；The one outlet of condensing units (3) connects to product gas/oil tank (13), another outlet
Controlled connection is to membrane separator (8) or adsorbent equipment (9)；Membrane separator (8) is respectively connecting to adsorbent equipment (9) and membrance separation is true
Empty pump (11), membrance separation vacuum pump (11) connects to surge tank (1)；Adsorbent equipment (9) is respectively connecting to chimney (15) and desorption
Vacuum pump (10), desorption vacuum pump (10) connects to surge tank (1)；Product gas/oil tank (13) are interconnected with surge tank (1), product
Gas/oil tank (13) is additionally coupled to product gas/oil pump (14).
2. device as claimed in claim 1 is it is characterised in that described condensing units (3) are by first-stage condenser (4), B-grade condensation
Device (5), three-level condenser (6), knockout drum (7) and compressor (12) composition, one ~ three-level condenser (4,5,6) and gas-liquid
Knockout drum (7) is sequentially connected with；The one outlet of knockout drum (7) connects to an entrance of first-stage condenser (4), another
Outlet connects to product gas/oil tank (13)；The controlled connection of one outlet of first-stage condenser (4) is to membrane separator (8) or absorption
Device (9)；Compressor (12) and secondary condenser (5), three-level condenser (6) interconnection；Every first-stage condenser is all steamed containing two
Send out device, when a passage frosting need to carry out defrosting operation, another passage can be automatically switched to it is ensured that system stable operation and energy
Consumption is minimum.
3. device as claimed in claim 1 is it is characterised in that described adsorbent equipment (9), by the way of multitower parallel connection, adopts
Activated carbon and silicoaluminophosphate molecular sieve adsorbant load in mixture filling, and adsorbent reactivation adopts vacuum pumping transformation to be desorbed；Every tower is each located
Replace switchover operation in different working conditions, wherein have a tower to be in adsorbed state all the time, a tower is in detachment status.
4. a kind of method reclaiming petrochemical industry organic exhaust gas is it is characterised in that using condensation, membrance separation, adsorb three groups of module couplings
Close, to surge tank (1), blower fan (2), condensing units (3), membrane separator (8), membrance separation vacuum pump (11), adsorbent equipment (9),
Desorption vacuum pump (10), product gas/oil tank (13), product gas/oil pump (14) and chimney (15) carry out flexible combination, to petrochemical industry row
Industry organic exhaust gas are reclaimed, and the non-methane hydrocarbon response rate is more than 99%:
For petrochemical industry refinery tail gas: after waste gas buffered tank (1) voltage stabilizing, adsorbent equipment (9), warp are entered by blower fan (2)
Purified gas after adsorption treatment pass through chimney (15) qualified discharge, and the product gas absorbing are after desorption vacuum pump (10) desorption
Send into surge tank (1), enter product gas/oil tank (13) after the voltage stabilizing of buffered tank (1), product gas are as industrial chemicals through product
Gas/oil pump (14) is transported to workshop and is recycled；
For the Volatile Gas containing heavy constituents such as aromatic hydrocarbon such as petrochemical industry tank field and loading platform: waste gas is introduced into surge tank
(1) carry out voltage stabilizing, then enter condensing units (3) through blower fan (2), waste gas condenses through three-level laggard in condensing units (3)
Row gas-liquid separation, the cryogenic gas that gas-liquid separation goes out and the organic exhaust gas entering condensing units (3) carry out entering after heat exchange
Membrane separator (8), the material that gas-liquid separation goes out enters product gas/oil tank (13) and sends into pipeline through product gas/oil pump (14)；By film
Organic gas after separator (8) separates enters adsorbent equipment (9), and it is up to standard that the purified gas after adsorption treatment pass through chimney (15)
Discharge, the material that the material absorbing is separated with membrane separator (8) after vacuum pump (10) desorption is through film vacuum pump
(11) send into surge tank (1) together and be circulated process；
For the organic exhaust gas of the high concentration interruption of petrochemical industry harbour volatilization, organic exhaust gas are introduced into surge tank (1) to be carried out surely
Pressure, then enters condensing units (3) through blower fan (2), and organic exhaust gas condense laggard circulation of qi promoting liquid through three-level in condensing units (3)
Separate, the cryogenic gas after gas-liquid separation carries out heat exchange with the organic exhaust gas entering condensing units (3), subsequently enters absorption
Device (9), the material that gas-liquid separation goes out enters product gas/oil tank (13) and sends into pipeline through product gas/oil pump (14)；At absorption
Purified gas after reason pass through chimney (15) qualified discharge, and the material absorbing sends into surge tank after vacuum pump (10) desorption
(1) it is circulated process.
5. method as claimed in claim 4 is it is characterised in that described condensing units (3) are by first-stage condenser (4), B-grade condensation
Device (5), three-level condenser (6), knockout drum (7) and compressor (12) composition, one ~ three-level condenser (4,5,6) and gas-liquid
Knockout drum (7) is sequentially connected with；The one outlet of knockout drum (7) connects to an entrance of first-stage condenser (4), another
Outlet connects to product gas/oil tank (13)；The controlled connection of one outlet of first-stage condenser (4) is to membrane separator (8) or absorption
Device (9)；Compressor (12) and secondary condenser (5), three-level condenser (6) interconnection；Every first-stage condenser is all steamed containing two
Send out device, when a passage frosting need to carry out defrosting operation, another passage can be automatically switched to it is ensured that system stable operation and energy
Consumption is minimum.
6. method as claimed in claim 4 is it is characterised in that described adsorbent equipment (9) absorbing unit adopts multitower side in parallel
Formula, loads in mixture filling using activated carbon and silicoaluminophosphate molecular sieve adsorbant, and adsorbent reactivation adopts vacuum pumping transformation to be desorbed；Every tower
Replace switchover operation each in different working conditions, wherein have a tower to be in adsorbed state all the time, a tower is in desorption shape
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919854.9A CN106334411A (en) | 2016-10-21 | 2016-10-21 | Method and device for recovering organic waste gas in petrochemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919854.9A CN106334411A (en) | 2016-10-21 | 2016-10-21 | Method and device for recovering organic waste gas in petrochemical industry |
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| CN106334411A true CN106334411A (en) | 2017-01-18 |
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| CN201610919854.9A Pending CN106334411A (en) | 2016-10-21 | 2016-10-21 | Method and device for recovering organic waste gas in petrochemical industry |
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| CN110152439A (en) * | 2019-05-13 | 2019-08-23 | 平顶山市神马万里化工股份有限公司 | A kind of energy conservation and environmental protection system separating organic matter, nitrogen from organic discharge gas |
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| CN108218658A (en) * | 2018-03-20 | 2018-06-29 | 浙江省天正设计工程有限公司 | A kind of integrated acetylene recycle device and recovery process |
| CN108218658B (en) * | 2018-03-20 | 2023-12-19 | 浙江省天正设计工程有限公司 | Integrated acetylene recycling device and process |
| CN111617612A (en) * | 2019-02-28 | 2020-09-04 | 中国石油化工股份有限公司 | Refinery enterprise parking maintenance waste gas treatment method and system |
| CN109999602A (en) * | 2019-03-15 | 2019-07-12 | 湖北楚天蓝环保设备工程有限公司 | A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method |
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| CN112023605A (en) * | 2019-06-03 | 2020-12-04 | 中石化南京化工研究院有限公司 | Organic steam retrieves experimental apparatus |
| CN110917814A (en) * | 2019-11-26 | 2020-03-27 | 广州金鹏环保工程有限公司 | Printing industry and other trades energy saving and emission reduction exhaust treatment system who discharges VOCs waste gas |
| CN113350957A (en) * | 2021-07-06 | 2021-09-07 | 瑞燃(上海)环境工程技术有限公司 | Device and method for treating organic silicon waste gas |
| CN113457358A (en) * | 2021-07-06 | 2021-10-01 | 深圳市奥图威尔科技有限公司 | Full-automatic recovery unit of organic volatile matter |
| CN113751283A (en) * | 2021-09-03 | 2021-12-07 | 东莞市鹏锦机械科技有限公司 | Lithium battery pole piece/diaphragm coating equipment and process |
| CN113751283B (en) * | 2021-09-03 | 2023-03-10 | 东莞市鹏锦机械科技有限公司 | Lithium battery pole piece/diaphragm coating equipment |
| CN114653165A (en) * | 2022-04-13 | 2022-06-24 | 苏州清初环境科技有限公司 | Method for producing secondary industrial raw material by treating volatile organic compounds through pressure swing adsorption |
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