CN109999602A - A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method - Google Patents
A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method Download PDFInfo
- Publication number
- CN109999602A CN109999602A CN201910199698.7A CN201910199698A CN109999602A CN 109999602 A CN109999602 A CN 109999602A CN 201910199698 A CN201910199698 A CN 201910199698A CN 109999602 A CN109999602 A CN 109999602A
- Authority
- CN
- China
- Prior art keywords
- level
- pipeline
- condenser
- import
- vocs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 125
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 238000003795 desorption Methods 0.000 claims abstract description 46
- 238000009833 condensation Methods 0.000 claims abstract description 13
- 230000005494 condensation Effects 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims description 87
- 238000001179 sorption measurement Methods 0.000 claims description 65
- 239000007788 liquid Substances 0.000 claims description 30
- 239000003507 refrigerant Substances 0.000 claims description 28
- 238000005057 refrigeration Methods 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 20
- 229930195733 hydrocarbon Natural products 0.000 claims description 15
- 150000002430 hydrocarbons Chemical class 0.000 claims description 15
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000009102 absorption Effects 0.000 description 35
- 239000003610 charcoal Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000005120 petroleum cracking Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A kind of Petrochemical Enterprises VOCs recycling and processing device, VOCs gas is handled by the way of " level Four condensation+two-stage absorption+desorption gas circulating condensing absorption ", simultaneously additionally use be not easy to block, VOCs gas passability is good and the better condenser of corrosion resistance, the device whole design is reasonable, have the advantages that equipment runs that permanent stabilization, environmental protection and energy saving, occupied area is small, equipment investment return rate is high, cooperate the use of processing method, VOCs gas purification coefficiency can reach 97% height, much realize the qualified discharge of tail gas.
Description
Technical field
The present invention relates to a kind of Petrochemical Enterprises VOCs recycling and processing device and processing methods, belong to Petrochemical Enterprises VOCs recycling
Technical field.
Background technique
Petrochemical Enterprises are fractionated petroleum cracking is different as gasoline, diesel oil, kerosene, oil gas and ethylene etc. by high temperature
Product, as lubricating oil, paraffin, pitch are all the byproducts of oil refining, in the production link, transit link and storage of the said goods
It deposits link and can all generate and volatilize VOCs, this kind of VOCs complicated component has stink, harmful to human body and natural environment
Property.
There are absorption and sorption, catalysis burning and bioanalysis etc. to the VOCs conventional method administered both at home and abroad, however these are traditional
Defect is individually present in method, limits large-scale popularization and use.Specific defect is as follows: 1, there are old absorptions for absorption and sorption method
Agent, old adsorbent secondary pollution problem, and absorbent and absorbent replacement are frequently, and daily running cost is high；2, catalysis burning
The features such as method one-time investment is big, operating cost is high also limits the use of medium-sized and small enterprises；3, bioanalysis removes setting for VOCs
Standby to take up a large area, removal rate is influenced vulnerable to the factors such as exhaust gas concentration and exhaust gas toxicity, and existing processing technique is unable to satisfy up to standard
Discharge.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned deficiency of the prior art, a kind of processing dress for Petrochemical Enterprises VOCs is provided
It sets and processing method, the processing unit is by the way of " level Four condensation+two-stage absorption+desorption gas circulating condensing absorption " pair
VOCs gas is handled, at the same additionally use and be not easy to block, VOCs gas passability is good and the better condenser of corrosion resistance,
The device whole design is reasonable, and there is equipment to run, and permanent stabilization, environmental protection and energy saving, occupied area is small, equipment investment return rate is high
The advantages of, cooperate the use of processing method, VOCs gas purification coefficiency can reach 97% height, much realize the row up to standard of tail gas
It puts.
To achieve the above object, the adopted technical solution is that:
A kind of Petrochemical Enterprises VOCs recycling and processing device, including sequentially connected collection system, condensate recovery system, absorption system
System, and the desorption system and tail gas discharge system that are arranged with adsorption system；
Condensate recovery system includes forecooler, level-one refrigeration unit, first-stage condenser, two stage cooler group, secondary condenser, three
Grade refrigeration unit, three-level condenser, tapping valve, temporary storage tank and oil pump；The first import of forecooler passes through pipeline and collection system
Outlet is connected, and forecooler first outlet is connected by pipeline with the VOCs gas feed of first-stage condenser, first-stage condenser
VOCs gas vent is connected by pipeline with the VOCs gas feed of secondary condenser, and the VOCs gas vent of secondary condenser is logical
It crosses pipeline to be connected with the VOCs gas feed of three-level condenser, the VOCs gas vent of three-level condenser passes through pipeline and forecooler
Second import is connected, level-one refrigeration unit, two stage cooler group and three-level refrigeration machine group pass through respectively pipeline and first-stage condenser,
Secondary condenser and three-level condenser are with company；Forecooler, first-stage condenser, secondary condenser and three-level condenser VOCs liquid
Outlet is connected by a pipeline with tapping valve with the import of temporary storage tank respectively, and the outlet of temporary storage tank passes through the pipeline with oil pump
It is connected with Petrochemical Enterprises VOCs liquid outlet；Forecooler, first-stage condenser, secondary condenser and three-level condenser are all made of pipe wing
Formula heat exchanger, the finned tube and shell of fin-tube type heat exchanger are fabricated by stainless steel, and in fin-tube type heat exchanger, refrigerant walks pipe
Journey, Petrochemical Enterprises VOCs walk shell side, and are flowed in opposite form；
Adsorption system includes intake valve, primary adsorption tank, first grade discharging valve, secondary absorption tank and second level drain valve, intake valve into
Mouth is connected by pipeline with forecooler second outlet, and air inlet valve outlet is connected by pipeline with primary adsorption tank import, and level-one is inhaled
Attached tank outlet is connected by pipeline with drain valve import, and the outlet of drain valve is connected by pipeline with the import of secondary absorption tank,
The outlet of secondary absorption tank is connected by the pipeline with second level drain valve with tail gas discharge system.
Preferably, collection system includes prime fire arrester and air-introduced machine, and prime fire arrester import is looked forward to by pipeline and refinery
Industry VOCs import is connected, and air-introduced machine import passes through pipeline and is connected with the outlet of prime fire arrester, and air-introduced machine outlet is by pipeline and in advance
First import of cooler is connected；Prime sampling branch pipe is provided on pipeline between Petrochemical Enterprises VOCs import and prime fire arrester
Line, the middle section of prime sampling by-pass line are provided with prime sampling valve, and the outer end that prime samples by-pass line is prime sample tap.
Preferably, desorption system includes air valve, primary adsorption tank, level-one desorption valve, secondary absorption tank, second level desorption valve
And vacuum pump, level-one desorption valve import are connected by pipeline with primary adsorption tank import, level-one be desorbed valve outlet pass through pipeline and
Vacuum pump inlet is connected, and vacuum pump outlet is connected by pipeline with air-introduced machine import, and the outlet of primary adsorption tank is by pipeline and breaks
Empty valve import is connected, and the import of secondary absorption tank is connected by second level desorption valve by pipeline with the import of vacuum pump, second level desorption
Valve and second level drain valve are hand-operated valve.
Preferably, tail gas discharge system includes rear class fire arrester and discharge drum, and rear class fire arrester import passes through pipeline and two
Grade discharge valve outlet is connected, and fire arrester outlet is connected by pipeline with discharge drum import；Between fire arrester and second level drain valve
Rear class sampling by-pass line is provided on pipeline, the middle section of rear class sampling by-pass line is provided with rear class sampling valve, and rear class samples branch pipe
The outer end of line is rear class sample tap.
Preferably, in condensate recovery system, forecooler, first-stage condenser, secondary condenser and three-level condenser are all made of
Explosion-proof Design；In adsorption system, primary adsorption tank is arranged in juxtaposition and independently carries out the adsorption tanks of absorption and desorption manipulation by two
Composition, secondary absorption tank are made of an adsorption tanks.
The method that Petrochemical Enterprises VOCs is recycled using above-mentioned Petrochemical Enterprises VOCs recycling and processing device are as follows:
First step condensation, the Petrochemical Enterprises VOCs gas after air-introduced machine pressurizes is sequentially through 3 DEG C of forecooler, the one of -20 DEG C
Grade condenser, -40 DEG C of secondary condenser, -75 DEG C of three-level condenser, the liquid through line difference that three-level condenser is condensed into
It flows into temporary storage tank and keeps in, the liquid in temporary storage tank is delivered to Petrochemical Enterprises VOCs liquid outlet through oil pump, is ultimately discharged into storage
It is stored in tank；
Second step adsorbs, and the gas for not becoming liquid in condensation process sequentially enters primary adsorption tank and secondary absorption tank is inhaled
Attached, herein, the hydrocarbon gas molecule easily adsorbed is attracted in the surface and hole of active carbon, and what remaining was not easy to be adsorbed
Hydrocarbon gas molecule be directed through in two-stage adsorption tanks it is active-carbon bed be discharged into tail gas discharge system, and then be discharged into atmosphere；
Third step desorption carries out independent vacuum desorption operation to primary adsorption tank and secondary absorption tank, and primary adsorption tank takes off
Attached operation is completed by control system, and using manually completing, the gas after desorption is fed directly to cold the desorption of secondary absorption tank
The entrance of solidifying system is handled again.Since the primary adsorption tank adsorption saturation period is very long, when row to atmosphere tail gas
When close not up to standard, second level drain valve can be turned off manually, open second level desorption valve to the thorough desorption and regeneration of secondary absorption tank progress.
Compared with prior art, the beneficial effects of the present invention are:
Processing unit of the present invention is by the way of " level Four condensation+two-stage absorption+desorption gas circulating condensing absorption " to VOCs gas
Body is handled, at the same additionally use and be not easy to block, VOCs gas passability is good and the better condenser of corrosion resistance, the device
Whole design is reasonable, has the advantages that equipment runs that permanent stabilization, environmental protection and energy saving, occupied area is small, equipment investment return rate is high,
Cooperate the use of processing method, VOCs gas purification coefficiency can reach 97% height, much realize the qualified discharge of tail gas.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram in the present invention inside condenser.
In figure, oil pump 1, Petrochemical Enterprises VOCs liquid outlet 2, prime fire arrester 3, Petrochemical Enterprises VOCs import 4, prime is taken
Sample valve 5, prime sample tap 6, air-introduced machine 7, forecooler 8, level-one refrigeration unit 9, first-stage condenser 10, two stage cooler group 11,
Secondary condenser 12, three-level refrigeration unit 13, three-level condenser 14, rear class sampling valve 15, rear class sample tap 16, rear class fire arrester
17, discharge drum 18, secondary absorption tank 19, hand-operated valve 20, first grade discharging valve 21, air valve 22, primary adsorption tank 23, desorption valve
24, intake valve 25, vacuum valve 26, tapping valve 27, temporary storage tank 28, fin 29, condenser VOCs import 30, refrigerant pipe 31 is cold
Matchmaker outlet 32, the channel condenser VOCs 33, refrigerant inlet 34, the outlet condenser VOCs 35, leakage fluid dram 36.
Specific embodiment
The present invention is described in further detail below in conjunction with Detailed description of the invention.
As depicted in figs. 1 and 2, a kind of Petrochemical Enterprises VOCs recycling and processing device, including it is sequentially connected collection system, cold
Condensation reclaiming system, adsorption system, and the desorption system and tail gas discharge system that are arranged with adsorption system；
Condensate recovery system includes that forecooler 8, level-one refrigeration unit 9, first-stage condenser 10, two stage cooler group 11, second level are cold
Condenser 12, three-level refrigeration unit 13, three-level condenser 14, tapping valve 27, temporary storage tank 28 and oil pump 1；8 first import of forecooler is logical
Pipeline is crossed to be connected with the outlet of collection system, 8 first outlet of forecooler by the VOCs gas of pipeline and first-stage condenser 10 into
Mouth is connected, and the VOCs gas vent of first-stage condenser 10 is connected by pipeline with the VOCs gas feed of secondary condenser 12, and two
The VOCs gas vent of grade condenser 12 is connected by pipeline with the VOCs gas feed of three-level condenser 14, three-level condenser 14
VOCs gas vent be connected with 8 second import of forecooler by pipeline, level-one refrigeration unit 9, two stage cooler group 11 and three
Grade refrigeration unit 13 is respectively by pipeline and first-stage condenser 10, secondary condenser 12 and three-level condenser 14 with company；Forecooler
8, the VOCs liquid outlet of first-stage condenser 10, secondary condenser 12 and three-level condenser 14 passes through a band tapping valve 27 respectively
Pipeline be connected with the import of temporary storage tank 28, the outlet of temporary storage tank 28 passes through the pipeline with oil pump 1 and Petrochemical Enterprises VOCs liquid
Outlet 2 is connected；Forecooler 8, first-stage condenser 10, secondary condenser 12 and three-level condenser 14 are all made of fin-tube type heat exchanger,
The finned tube and shell of fin-tube type heat exchanger are fabricated by stainless steel, and in fin-tube type heat exchanger, refrigerant walks tube side, refinery enterprise
Industry VOCs walks shell side, and refrigerant and Petrochemical Enterprises VOCs are flowed in opposite form；
Adsorption system includes intake valve 25, primary adsorption tank 23, first grade discharging valve 21, secondary absorption tank 19 and second level drain valve,
25 import of intake valve is connected by pipeline with 8 second outlet of forecooler, and the outlet of intake valve 25 passes through pipeline and primary adsorption tank 23
Import is connected, and the outlet of primary adsorption tank 23 is connected by pipeline with 21 import of first grade discharging valve, and the outlet of first grade discharging valve 21 is logical
It crosses pipeline to be connected with the import of secondary absorption tank 19, the outlet of secondary absorption tank 19 passes through pipeline and tail gas with second level drain valve
Exhaust system is connected.
Collection system includes prime fire arrester 3 and air-introduced machine 7 as a preferred technical solution, and 3 import of prime fire arrester is logical
It crosses pipeline to be connected with Petrochemical Enterprises VOCs import 4,7 import of air-introduced machine is connected by pipeline with the outlet of prime fire arrester 3, air-introduced machine
7 outlets are connected by pipeline with the first import of forecooler 8；Pipeline between Petrochemical Enterprises VOCs import 4 and prime fire arrester 3
On be provided with prime sampling by-pass line, the middle section of prime sampling by-pass line is provided with prime sampling valve 5, and prime samples by-pass line
Outer end is prime sample tap 6.
Desorption system includes air valve 22, primary adsorption tank 23, level-one desorption valve 24, two as a preferred technical solution,
Grade adsorption tanks 19, second level desorption valve 20 and vacuum pump 26, level-one are desorbed 24 import of valve and pass through pipeline and 23 import of primary adsorption tank
It is connected, the outlet of level-one desorption valve 24 is connected by pipeline with 26 import of vacuum pump, and the outlet of vacuum pump 26 passes through pipeline and air-introduced machine 7
Import is connected, and the outlet of primary adsorption tank 23 is connected by pipeline with 22 import of air valve, and second level is desorbed valve 20 and passes through pipeline for two
The import of grade adsorption tanks 19 is connected with the import of vacuum pump 26, and valve 20 is desorbed in second level and second level drain valve is hand-operated valve.
Tail gas discharge system includes rear class fire arrester 17 and discharge drum 18, rear class fire arrester as a preferred technical solution,
17 imports discharge valve outlet with second level by pipeline and are connected, and the outlet of fire arrester 17 is connected by pipeline with 18 import of discharge drum；Resistance
Rear class sampling by-pass line is provided on pipeline between firearm 17 and second level drain valve, the middle section of rear class sampling by-pass line is provided with
Rear class sampling valve 15, the outer end that rear class samples by-pass line is rear class sample tap 16.
As a preferred technical solution, in condensate recovery system, forecooler 8, first-stage condenser 10,12 and of secondary condenser
Three-level condenser 14 is all made of Explosion-proof Design；In adsorption system, primary adsorption tank 23 is arranged in juxtaposition by two and is independently inhaled
The adsorption tanks composition of desorption manipulation is echoed, secondary absorption tank 19 is made of an adsorption tanks.
Embodiment 1
It will be 300g/m3 with concentration containing non-methane total hydrocarbons in following example 1, gas flow 300Nm3/h, temperature are 30 DEG C
Petrochemical Enterprises VOCs be air inlet instance processes source be further described in detail, but the present disclosure applies equally to different tolerance,
The recycling and processing device of various concentration, different temperatures, the Petrochemical Enterprises VOCs minimum discharge standard of heterogeneity.
As shown in Figure 1, a kind of Petrochemical Enterprises VOCs recycling and processing device, including collection system, condensate recovery system, absorption
System, desorption system and tail gas discharge system:
Collection system includes prime fire arrester 3, air-introduced machine 7, and 3 import of prime fire arrester passes through pipeline and Petrochemical Enterprises VOCs import
4 are connected, and 7 import of air-introduced machine is connected by pipeline with the outlet of prime fire arrester 3；Petrochemical Enterprises VOCs passes through prime fire arrester 3, draws
Blower 7 is tentatively cooled down into forecooler 8, and temperature drops to 3 DEG C or so by 30 DEG C；It is 300Nm that air-introduced machine 7, which selects at least flow,
The explosion-proof centrifugal blower of 3/h, Petrochemical Enterprises VOCs is collected and is pressurized to maximum 20Kpa or so；
Condensate recovery system includes that forecooler 8, level-one refrigeration unit 9, first-stage condenser 10, two stage cooler group 11, second level are cold
Condenser 12, three-level refrigeration unit 13, three-level condenser 14, tapping valve 27, temporary storage tank 28 and oil pump 1,8 first import of forecooler are logical
It crosses pipeline to be connected with the outlet of air-introduced machine 7,8 first outlet of forecooler passes through the VOCs gas feed phase of pipeline and first-stage condenser 10
Even, the VOCs gas vent of first-stage condenser 10 is connected by pipeline with the VOCs gas feed of secondary condenser 12, and second level is cold
The VOCs gas vent of condenser 12 is connected by pipeline with the VOCs gas feed of three-level condenser 14, three-level condenser 14
VOCs gas vent is connected by pipeline with 8 second import of forecooler, and 9 refrigerant exit of level-one refrigeration unit passes through pipeline and level-one
10 refrigerant inlet of condenser is connected, and 9 refrigerant inlet of level-one refrigeration unit is connected by pipeline with 10 refrigerant exit of first-stage condenser,
11 refrigerant exit of two stage cooler group is connected by pipeline with 12 refrigerant inlet of secondary condenser, 11 refrigerant of two stage cooler group into
Mouth is connected by pipeline with 12 refrigerant exit of secondary condenser, and 13 refrigerant exit of three-level refrigeration unit is condensed by pipeline and three-level
14 refrigerant inlet of device is connected, and 13 refrigerant inlet of three-level refrigeration unit is connected by pipeline with 14 refrigerant exit of three-level condenser, in advance
8 Petrochemical Enterprises VOCs liquid outlet of cooler is connected by pipeline with 27 import of tapping valve, 10 Petrochemical Enterprises VOCs of first-stage condenser
Liquid outlet is connected by 27 import of pipeline tapping valve, and 12 Petrochemical Enterprises VOCs liquid outlet of secondary condenser passes through pipeline and row
27 import of liquid valve is connected, and 14 Petrochemical Enterprises VOCs liquid outlet of three-level condenser is connected by pipeline with 27 import of tapping valve, arranges
Liquid valve 27(totally four) outlet is connected by pipeline with 28 import of temporary storage tank, and the outlet of temporary storage tank 28 passes through pipeline and pumps 1 import phase
Even, 1 outlet of pump is connected by pipeline with Petrochemical Enterprises VOCs withdrawal liquid outlet 2；
Petrochemical Enterprises VOCs is cooling by level Four, and the Petrochemical Enterprises VOCs liquid condensed out passes through forecooler 8, first-stage condenser
10, the interface of 14 lower section of secondary condenser 12 and three-level condenser irregularly opens tapping valve 27 and is discharged into temporary storage tank 28, avoids each
Hydrops excessively results in blockage in condenser.And the liquid level of temporary storage tank 28 and the open and close of pump 1 lock together, when liquid level liter
Height is opened to setting value, is closed lower than setting value, full-automatic operation.
Petrochemical Enterprises VOCs passes sequentially through four heat exchangers: forecooler 8, first-stage condenser 10, secondary condenser 12 and three
Grade condenser 14 is condensed, and level Four condensed gas end Outlet Temperature value is followed successively by 3 DEG C, -20 DEG C, -40 DEG C, -75 DEG C.From three
Cooling capacity is passed to the refinery of air-introduced machine pressurization by forecooler 8 by -75 DEG C of the low temperature VOCs fixed gas that grade condenser 14 comes out
VOCs temperature is dropped to 3 DEG C or so from 30 DEG C by enterprise VOCs, and some hydrocarbon mutually becomes liquid with most of water condensation in VOCs；
Level-one refrigeration unit 9 provides cooling capacity for first-stage condenser 10 and the VOCs of entrance is condensed to -20 DEG C from 3 DEG C, part hydrocarbon in VOCs
Class mutually becomes liquid with part water condensation；Two stage cooler group 11 be secondary condenser 12 provide cooling capacity by the VOCs of entrance from-
20 DEG C condense to -40 DEG C, and some hydrocarbon mutually becomes liquid with small part water condensation in VOCs；Three-level refrigeration unit 13 is that three-level is cold
Condenser 14 provides cooling capacity and the VOCs of entrance is condensed to -75 DEG C from -40 DEG C, most of hydro carbons and small part water cooling condensed-phase in VOCs
Become liquid；
Forecooler 8, first-stage condenser 10, secondary condenser 12, three-level condenser 14 are all made of tube fin type heat exchange as shown in Figure 2
Device, fin 29 and the integrally welded formation finned tube of refrigerant pipe 31, Petrochemical Enterprises VOCs by condenser VOCs import 30 into
Enter the channel condenser VOCs 33 inside heat exchanger and the refrigerant in refrigerant pipe 31 and carry out heat exchange to be condensed,
Middle refrigerant flows through refrigerant pipe 31 into heat exchanger from refrigerant inlet 34 and finally flows out from refrigerant exit 32, the VOCs condensed out
Liquid is discharged outside heat exchanger by leakage fluid dram 36, and the not condensed fixed gas to get off is flowed by the outlet refrigerant condenser VOCs 35
Next processing unit.
Petrochemical Enterprises VOCs by the channel condenser VOCs 33 in four condensers and the refrigerant in refrigerant pipe 31 into
Row heat exchange, is successively condensed out each component.Comparison of ingredients is complicated in Petrochemical Enterprises VOCs, and some fusing points are higher, some fusing points compared with
It is low, since its different vapour content contained of refinery technique, geographical environment, field working conditions are also not quite similar, thus refinery
Enterprise VOCs can have the phenomenon that ingredient solidifies frosting in four condensers, however in fin-tube heat exchanger, refinery
It is fin channels that enterprise VOCs, which flows through channel, and design feature is exactly " shell side " often referred in heat exchanger, and space is big, flow area
More much bigger than the plate heat exchanger that industry is commonly used, medium solidification frosting will not result in blockage, therefore only need one
Plate changes and will not generate blocking.
Petrochemical Enterprises VOCs by level Four condense, almost all Petrochemical Enterprises VOCs hydro carbons all condense out be stored in it is temporary
In tank, only small part hydro carbons, which does not condense out, is still present in fixed gas with gas phase, and non-methane total hydrocarbons concentration is by entering
The 100g/m3 of device is down within 10g/m3, and Petrochemical Enterprises VOCs recovery processing efficiency reaches 90% or more.
Adsorption system includes first grade discharging valve 21, intake valve 25, primary adsorption tank 23, secondary absorption tank 19 and second level discharge
Valve, 8 second outlet of forecooler are connected by pipeline with 25 import of intake valve, and the outlet of intake valve 25 passes through pipeline and primary adsorption tank
23 imports are connected, and the outlet of primary adsorption tank 23 is connected by pipeline with 21 import of first grade discharging valve, and the outlet of first grade discharging valve 21 is logical
Pipeline is crossed to be connected with 19 import of secondary absorption tank；Petrochemical Enterprises VOCs remaining fixed gas after level Four condenses passes through two layers of suction
Attached tank active carbon charcoal bed, non-methane total hydrocarbons concentration is completed up to standard by being down within 120mg/m3 within 10g/m3 in residual exhaust
Discharge.
Desorption system includes air valve 22, level-one desorption valve 24, primary adsorption tank 23, secondary absorption tank 19, second level desorption
Valve 20 and vacuum pump 26, level-one desorption 24 import of valve are connected by pipeline with 23 import of primary adsorption tank, and level-one desorption valve 24 goes out
Mouthful be connected with 26 import of vacuum pump by pipeline, vacuum pump 26, which exports, to be passed through pipeline and is connected with 7 import of air-introduced machine, air valve 22 into
Mouth is connected by pipeline with the outlet of primary adsorption tank 23, and 20 import phase of valve is desorbed by pipeline and second level in 19 import of secondary absorption tank
Even, second level desorption valve 20 outlet is connected by pipeline with 26 import of vacuum pump；
Adsorption tanks are arranged altogether there are three adsorbing by two-stage, and level-one is set there are two adsorption tanks, and second level is equipped with an adsorption tanks, in
Portion is filled with Petrochemical Enterprises VOCs recycling special-purpose activated charcoal.In primary adsorption, a charcoal bed is in " absorption " working condition,
Another charcoal bed is then in " desorption " state, and when Petrochemical Enterprises VOCs enters charcoal bed, the hydro carbons in VOCs gas is tightly held by activated carbon
Firmly, air is discharged into atmosphere then directly through layer of charcoal.When " absorption " charcoal bed is close to saturation state, " absorption " charcoal bed is transferred to
" desorption " state, at the same time, former " desorption " charcoal bed have regenerated the adsorbed state for finishing and being transferred to VOCs.Two adsorption tanks are cut
Changing is logic control system to complete, to guarantee to be recycled the Petrochemical Enterprises VOCs for continually entering device.
Petrochemical Enterprises VOCs comes secondary absorption layer of charcoal by first grade discharging valve 21 after primary adsorption layer of charcoal and is further inhaled
Attached, Petrochemical Enterprises VOCs VOCs concentration after secondary absorption substantially reduces.
Tail gas discharge system includes rear class fire arrester 17, discharge drum 18, and 17 import of rear class fire arrester passes through pipeline and second level
Second level drain valve on 19 outlet line of adsorption tanks is connected, and the outlet of fire arrester 17 is connected by pipeline with 18 import of discharge drum；It presses
According to national standard GB31570-2015 " petroleum refining industry pollutant emission standard ", petroleum refining enterprise atmosphere pollutants emission standards
It is no more than 120mg/m for non-methane total hydrocarbons3, discharge drum height is 15 meters, and Petrochemical Enterprises VOCs adds second level by level Four condensation
Tail gas is by fire arrester after absorption and 15 meters of discharge drum is up to standard is discharged into atmosphere.
The above content is the further descriptions for combining specific embodiment to be the present invention, must not believe that the present invention
Specific implementation be only limited to these instructions, for those of ordinary skill in the art to which the present invention belongs, do not departing from
Under the premise of present inventive concept, the simple replacement made all shall be regarded as belonging to protection scope of the present invention.
Claims (6)
1. a kind of Petrochemical Enterprises VOCs recycling and processing device, including sequentially connected collection system, condensate recovery system, absorption system
System, and the desorption system and tail gas discharge system that are arranged with adsorption system；It is characterized by:
The condensate recovery system includes forecooler (8), level-one refrigeration unit (9), first-stage condenser (10), two stage cooler
Group (11), secondary condenser (12), three-level refrigeration unit (13), three-level condenser (14), tapping valve (27), temporary storage tank (28) and
Oil pump (1)；(8) first import of forecooler is connected by pipeline with the outlet of collection system, and the forecooler (8) first goes out
Mouth is connected by pipeline with the VOCs gas feed of first-stage condenser (10), the VOCs gas vent of the first-stage condenser (10)
It is connected by pipeline with the VOCs gas feed of secondary condenser (12), the VOCs gas vent of the secondary condenser (12) is logical
It crosses pipeline to be connected with the VOCs gas feed of three-level condenser (14), the VOCs gas vent of the three-level condenser (14) passes through
Pipeline is connected with (8) second import of forecooler, the level-one refrigeration unit (9), two stage cooler group (11) and three-level refrigeration
Unit (13) is respectively by pipeline and first-stage condenser (10), secondary condenser (12) and three-level condenser (14) with company；It is described
Forecooler (8), first-stage condenser (10), secondary condenser (12) and three-level condenser (14) VOCs liquid outlet pass through respectively
A piece pipeline with tapping valve (27) is connected with the import of temporary storage tank (28), and the outlet of the temporary storage tank (28) passes through band oil pump
(1) pipeline is connected with Petrochemical Enterprises VOCs liquid outlet (2)；The forecooler (8), first-stage condenser (10), second level are cold
Condenser (12) and three-level condenser (14) are all made of fin-tube type heat exchanger, the finned tube and shell of the fin-tube type heat exchanger by
Stainless steel is fabricated, and in the fin-tube type heat exchanger, refrigerant walks tube side, and Petrochemical Enterprises VOCs walks shell side, and is with opposite
Form flowing；
The adsorption system includes intake valve (25), primary adsorption tank (23), first grade discharging valve (21), secondary absorption tank (19)
With second level drain valve, intake valve (25) import is connected by pipeline with forecooler (8) second outlet, the intake valve (25)
Outlet is connected by pipeline with primary adsorption tank (23) import, and primary adsorption tank (23) outlet passes through pipeline and drain valve
(21) import is connected, and the outlet of the drain valve (21) is connected by pipeline with the import of secondary absorption tank (19), the second level
The outlet of adsorption tanks (19) is connected by the pipeline with second level drain valve with tail gas discharge system.
2. a kind of Petrochemical Enterprises VOCs recycling and processing device according to claim 1, it is characterised in that: the collection system
System includes prime fire arrester (3) and air-introduced machine (7), prime fire arrester (3) import by pipeline and Petrochemical Enterprises VOCs into
Mouth (4) is connected, and air-introduced machine (7) import is connected by pipeline with prime fire arrester (3) outlet, air-introduced machine (7) outlet
It is connected by pipeline with the first import of forecooler (8)；Between the Petrochemical Enterprises VOCs import (4) and prime fire arrester (3)
Pipeline on be provided with prime sampling by-pass line, the middle section of prime sampling by-pass line is provided with prime sampling valve (5), described
The outer end that prime samples by-pass line is prime sample tap (6).
3. a kind of Petrochemical Enterprises VOCs recycling and processing device according to claim 2, it is characterised in that: the desorption system
System includes air valve (22), primary adsorption tank (23), level-one desorption valve (24), secondary absorption tank (19), second level desorption valve (20)
With vacuum pump (26), level-one desorption valve (24) import is connected by pipeline with primary adsorption tank (23) import, the level-one
Desorption valve (24) outlet is connected by pipeline with vacuum pump (26) import, and vacuum pump (26) outlet passes through pipeline and air-introduced machine
(7) import is connected, and primary adsorption tank (23) outlet is connected by pipeline with air valve (22) import, and valve is desorbed in the second level
(20) import of secondary absorption tank (19) is connected with the import of vacuum pump (26) by pipeline, valve (20) are desorbed in the second level
It is hand-operated valve with second level drain valve.
4. a kind of Petrochemical Enterprises VOCs recycling and processing device according to claim 3, it is characterised in that: the exhaust emissions
System includes rear class fire arrester (17) and discharge drum (18), and rear class fire arrester (17) import passes through pipeline and second level drain valve
Outlet is connected, and fire arrester (17) outlet is connected by pipeline with discharge drum (18) import；The fire arrester (17) and second level
Rear class sampling by-pass line is provided on pipeline between drain valve, the middle section of the rear class sampling by-pass line is provided with rear class sampling
The outer end of valve (15), the rear class sampling by-pass line is rear class sample tap (16).
5. a kind of Petrochemical Enterprises VOCs recycling and processing device according to claim 1, it is characterised in that: described is condensed back to
In receipts system, the forecooler (8), first-stage condenser (10), secondary condenser (12) and three-level condenser (14) are all made of
Explosion-proof Design；In the adsorption system, the primary adsorption tank (23) by two be arranged in juxtaposition and independently carry out absorption and
The adsorption tanks of desorption manipulation form, and the secondary absorption tank (19) is made of an adsorption tanks.
6. using claim 1 to 5 any one processing unit to the recovery and treatment method of Petrochemical Enterprises VOCs, feature exists
In:
The first step condensation, through air-introduced machine (7) pressurization after Petrochemical Enterprises VOCs gas sequentially through 3 DEG C forecooler (8), -20
DEG C first-stage condenser (10), -40 DEG C of secondary condenser (12), -75 DEG C of three-level condenser (14), three-level condenser condensation
At liquid through line separately flow into temporary storage tank (28) keep in, the liquid in temporary storage tank (28) is delivered to refinery through oil pump (1)
Enterprise's VOCs liquid outlet (2), is ultimately discharged into holding vessel and stores；
Second step adsorbs, and the gas for not becoming liquid in condensation process sequentially enters primary adsorption tank (23) and secondary absorption tank
(19) it is adsorbed, herein, the hydrocarbon gas molecule easily adsorbed is attracted in the surface and hole of active carbon, and remaining is not
The hydrocarbon gas molecule being easily adsorbed be directed through in two-stage adsorption tanks it is active-carbon bed be discharged into tail gas discharge system, and then be discharged into
Atmosphere；
Third step desorption carries out independent vacuum desorption operation to primary adsorption tank (23) and secondary absorption tank (19), and level-one is inhaled
The desorption manipulation of attached tank (23) is completed by control system, and the desorption of secondary absorption tank (19), which uses, to be manually completed, the gas after desorption
The entrance that body is fed directly to condenser system is handled again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199698.7A CN109999602A (en) | 2019-03-15 | 2019-03-15 | A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199698.7A CN109999602A (en) | 2019-03-15 | 2019-03-15 | A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109999602A true CN109999602A (en) | 2019-07-12 |
Family
ID=67167222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910199698.7A Pending CN109999602A (en) | 2019-03-15 | 2019-03-15 | A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109999602A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044227A (en) * | 2020-08-27 | 2020-12-08 | 浙江省天正设计工程有限公司 | Condensation refrigerating plant of VOCs tail gas |
| CN113244734A (en) * | 2021-06-24 | 2021-08-13 | 青岛市金旭环境工程有限公司 | Oil gas recovery method |
| CN115155237A (en) * | 2022-06-16 | 2022-10-11 | 广东智环盛发环保科技有限公司 | Waste gas treatment system for treating waste gas in chemical reservoir area and treatment method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4214246A1 (en) * | 1992-04-30 | 1993-11-04 | Walter Dr Ing Baumann | Cleaning light transitional impurities of halohydrocarbon in airflow - with active carbon@ filters which alternately absorb and release |
| CN202188701U (en) * | 2011-03-16 | 2012-04-11 | 深圳山源电器有限公司 | Air conditioner aluminum integral corrugated finned tube combined condenser |
| CN203479104U (en) * | 2013-08-19 | 2014-03-12 | 北京国信安科技术有限公司 | Non-equidistant heat exchanger for blast furnace cinder flushing water low-temperature exhaust heat heating system |
| CN103933828A (en) * | 2014-04-30 | 2014-07-23 | 中国石油化工股份有限公司 | Multi-stage adsorption type oil gas recycling system and recycling process thereof |
| US20160290730A1 (en) * | 2013-11-25 | 2016-10-06 | Carrier Corporation | Dual duty microchannel heat exchanger |
| CN106166399A (en) * | 2016-07-29 | 2016-11-30 | 泉州市天龙环境工程有限公司 | A kind of device for recovering oil and gas and method |
| CN106334411A (en) * | 2016-10-21 | 2017-01-18 | 江苏智道工程技术有限公司 | Method and device for recovering organic waste gas in petrochemical industry |
| CN210045028U (en) * | 2019-03-15 | 2020-02-11 | 湖北楚天蓝环保设备工程有限公司 | VOCs recovery processing device of refining enterprise |
-
2019
- 2019-03-15 CN CN201910199698.7A patent/CN109999602A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4214246A1 (en) * | 1992-04-30 | 1993-11-04 | Walter Dr Ing Baumann | Cleaning light transitional impurities of halohydrocarbon in airflow - with active carbon@ filters which alternately absorb and release |
| CN202188701U (en) * | 2011-03-16 | 2012-04-11 | 深圳山源电器有限公司 | Air conditioner aluminum integral corrugated finned tube combined condenser |
| CN203479104U (en) * | 2013-08-19 | 2014-03-12 | 北京国信安科技术有限公司 | Non-equidistant heat exchanger for blast furnace cinder flushing water low-temperature exhaust heat heating system |
| US20160290730A1 (en) * | 2013-11-25 | 2016-10-06 | Carrier Corporation | Dual duty microchannel heat exchanger |
| CN103933828A (en) * | 2014-04-30 | 2014-07-23 | 中国石油化工股份有限公司 | Multi-stage adsorption type oil gas recycling system and recycling process thereof |
| CN106166399A (en) * | 2016-07-29 | 2016-11-30 | 泉州市天龙环境工程有限公司 | A kind of device for recovering oil and gas and method |
| CN106334411A (en) * | 2016-10-21 | 2017-01-18 | 江苏智道工程技术有限公司 | Method and device for recovering organic waste gas in petrochemical industry |
| CN210045028U (en) * | 2019-03-15 | 2020-02-11 | 湖北楚天蓝环保设备工程有限公司 | VOCs recovery processing device of refining enterprise |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044227A (en) * | 2020-08-27 | 2020-12-08 | 浙江省天正设计工程有限公司 | Condensation refrigerating plant of VOCs tail gas |
| CN113244734A (en) * | 2021-06-24 | 2021-08-13 | 青岛市金旭环境工程有限公司 | Oil gas recovery method |
| CN115155237A (en) * | 2022-06-16 | 2022-10-11 | 广东智环盛发环保科技有限公司 | Waste gas treatment system for treating waste gas in chemical reservoir area and treatment method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204294073U (en) | A VOCs volatile gas recovery and utilization device | |
| CN109999601A (en) | A kind of processing unit and processing method of aviation kerosine VOCs | |
| CN102580463A (en) | System and method for recovering oil gas | |
| CN107261754A (en) | VOCs waste gas recovery processing method and processing devices | |
| CN109999602A (en) | A kind of Petrochemical Enterprises VOCs recycling and processing device and processing method | |
| CN107413173A (en) | A high-efficiency organic waste gas recovery and treatment method and complete set of equipment | |
| CN110440135A (en) | A VOCs recovery system based on LNG cold energy | |
| CN208345747U (en) | A kind of area of refinery oil loading platform gas recovery system for oil | |
| CN208372511U (en) | A kind of system of condensation method processing VOCs | |
| CN204637927U (en) | A kind of device for recovering oil and gas | |
| CN101703841A (en) | Device for collecting and recovering oil gas by condensation and absorption | |
| CN207102240U (en) | VOCs waste gas recovery processing units | |
| CN202440471U (en) | Oil gas recovery system | |
| CN103523417B (en) | Petrol storage tank tidal air recovery system | |
| CN106310699B (en) | A kind of gas recovery system for oil and method of asymmetric double tank adsorption desorptions | |
| CN215962860U (en) | Oil gas treatment system | |
| CN115738576A (en) | Volatile organic compound-containing tail gas treatment system and tail gas treatment process | |
| CN210045028U (en) | VOCs recovery processing device of refining enterprise | |
| CN202246576U (en) | Oil gas low-temperature condensation, absorption and recovery device | |
| CN105861026B (en) | A kind of slag oil-gas recovery processing device and processing method | |
| CN102464999B (en) | Oil gas absorption recovering method | |
| CN114392633A (en) | Nitrogen protection's degrease technology organic waste gas condensation recovery processing system | |
| CN204952335U (en) | Vapor recovery system integrated system | |
| CN210045029U (en) | Aviation kerosene VOCs's processing apparatus | |
| CN208395104U (en) | A kind of condensation adsorption formula device for recovering oil and gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190712 |