CN107051102A - A kind of VOC on-line monitoring systems and governing system - Google Patents
A kind of VOC on-line monitoring systems and governing system Download PDFInfo
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- CN107051102A CN107051102A CN201710051560.3A CN201710051560A CN107051102A CN 107051102 A CN107051102 A CN 107051102A CN 201710051560 A CN201710051560 A CN 201710051560A CN 107051102 A CN107051102 A CN 107051102A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000007084 catalytic combustion reaction Methods 0.000 claims abstract description 18
- 238000003795 desorption Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims abstract description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 51
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012855 volatile organic compound Substances 0.000 description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 230000009102 absorption Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B01D53/02—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- 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
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
-
- 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
- B01D2259/402—Further details for adsorption processes and devices using two beds
Abstract
The invention discloses a kind of VOC on-line monitoring systems and governing system, including sample gas compressor, catalytic combustion burner, first triple valve, second triple valve, 3rd triple valve, 4th triple valve, 5th triple valve, two the first chromatographic columns, two the second chromatographic columns, some heaters, desorption gas compressor, VOC on-line computing models and tail gas discharging pipe, the input of the sample gas compressor is connected with sample gas air supply pipe, front port of the output end of the sample gas compressor respectively with VOC on-line computing models and the second triple valve is connected, the output end of the catalytic combustion burner is connected with the upper port of the first triple valve and the lower port of the 3rd triple valve respectively, the lower port of first triple valve is connected with the upper port of the second triple valve, compared with prior art, VOC change in concentration can be monitored in time, the flow velocity of various gases is adjusted in time, to reach optimal regulation effect, and with automation, continuity, reliability, the characteristics of real-time.
Description
【Technical field】
The present invention relates to the technical field of waste gas treatment equipment, particularly a kind of VOC on-line monitoring systems and governing system
Technical field.
【Background technology】
The core technology that existing VOC is administered includes zeolite runner+RTO technologies, RCO technologies etc..Zeolite runner+RTO skills
Art is that a kind of technique is simple, and floor space is small, the low organic waste gas treatment system of operating cost, mainly employs advanced heat and hands over
Technology and honeycomb ceramic heat-storing material are changed, efficient advanced heat-exchange system ensure that effective recovery of calory burning.VOCs
It after waste gas is by hydrophobic zeolite concentration runner, can effectively be adsorbed in zeolite, reach the purpose of removal.It is dense after desorption
Contracting organic exhaust gas, which delivers to incinerator and is heated to 760-820 DEG C, carries out burning conversion into carbon dioxide and moisture discharge to big
In gas.RCO technologies are typical gas-solid-phase catalytic reactions, the activation energy of its reaction by catalyst degradation, make it relatively low
200-300 DEG C of initiation temperature at carry out flameless combustion, organic substance oxidation occurs in solid catalyst surface, organic exhaust gas
Organic pollution occur nonflame oxidizing fire under relatively low initiation temperature, oxidation Decomposition is carbon dioxide and water.
Although above VOC Treatment process can preferably carry out VOCs treatment, it need on regulation effect
Improve, it is also to be reduced in operating cost.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of VOC on-line monitoring systems and administers system
System, is administered by VOC and on-line monitoring system is combined, VOC change in concentration can be monitored in time, various gases are adjusted in time
Flow velocity, to reach optimal regulation effect, and operating cost is low.
To achieve the above object, the present invention proposes a kind of VOC on-line monitoring systems and governing system, and governing system includes
Sample gas compressor, catalytic combustion burner, the first triple valve, the second triple valve, the 3rd triple valve, the 4th triple valve, the 5th threeway
Valve, two the first chromatographic columns, two the second chromatographic columns, some heaters, desorption gas compressor and tail gas discharging pipe, the sample
The input of product air compressor is connected with before sample gas air supply pipe, the output end and the second triple valve of the sample gas compressor
Port is connected, and the input of the catalytic combustion burner connects with the upper port of the first triple valve and the lower port of the 3rd triple valve respectively
Connect, the lower port of first triple valve is connected with the upper port of the second triple valve, the lower port of second triple valve and the
The upper port connection of three triple valves, the inputs of described two first chromatographic columns respectively with the first triple valve and the 3rd triple valve
Rear port is connected, and the input of the output ends of described two first chromatographic columns respectively with two the second chromatographic columns is connected, and described two
Front port of the output end of individual second chromatographic column respectively with the 4th triple valve and the 5th triple valve is connected, the desorption gas compression
The output end of machine is connected with the upper port of the 4th triple valve and the lower port of the 5th triple valve respectively, the 4th triple valve and
The rear port of five triple valves is connected with tail gas discharging pipe, and the bottom part down of first chromatographic column and the second chromatographic column is equipped with
Heater, VOC on-line monitoring systems include gas chromatograph and data workstation, the drain and gas phase of the catalytic combustion burner
Chromatograph is connected, and the output end of described two first chromatographic columns is connected with gas chromatograph, the 4th triple valve and the 5th
The rear port of triple valve is connected with gas chromatograph.
Preferably, also including environmentally friendly office system, the environmentally friendly office system is connected with data workstation.
Preferably, the catalytic combustion burner uses 300 DEG C of temperature, cold start-up in noble metal catalyst, catalytic combustion burner
It is less than 50 minutes to the uptime.
Preferably, first triple valve, the second triple valve, the 3rd triple valve, the 4th triple valve and the 5th triple valve
It is automatic valve.
Beneficial effects of the present invention：The present invention can monitor VOC change in concentration in time, and the stream of various gases is adjusted in time
Speed, to reach optimal regulation effect, and operating cost is low, the characteristics of with automation, continuity, reliability, real-time.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is the structural representation of a kind of VOC on-line monitoring systems of the invention and governing system.
In figure：1- sample gas compressor, 2- catalytic combustion burners, the triple valves of 3- first, the triple valves of 4- second, the threeways of 5- the 3rd
Valve, the triple valves of 6- the 4th, the triple valves of 7- the 5th, the chromatographic columns of 8- first, the chromatographic columns of 9- second, 10- heaters, 11- desorption gas
The environmentally friendly office system of compressor, 12- on-line gas chromatographies, 13- tail gas discharging pipes, 14- data workstations, 15-.
【Embodiment】
Refering to Fig. 1, a kind of VOC on-line monitoring systems and governing system of the invention, governing system include sample gas compressor
1st, catalytic combustion burner 2, the first triple valve 3, the second triple valve 4, the 3rd triple valve 5, the 4th triple valve 6, the 5th triple valve 7, two
Individual first chromatographic column 8, two the second chromatographic column 9, some heaters 10, desorption gas compressor 11 and tail gas discharging pipes 13, institute
The input for stating sample gas compressor 1 is connected with sample gas air supply pipe, output end and the second threeway of the sample gas compressor 1
The front port connection of valve 4, the upper port and the 3rd triple valve 5 of the input of the catalytic combustion burner 2 respectively with the first triple valve 3
Lower port connection, the lower port of first triple valve 3 is connected with the upper port of the second triple valve 4, second triple valve 4
Lower port be connected with the upper port of the 3rd triple valve 5, the inputs of described two first chromatographic columns 8 respectively with the first triple valve
3 and the 3rd triple valve 5 rear port connection, the output ends of described two first chromatographic columns 8 respectively with two the second chromatographic columns 9
Input is connected, the output ends of described two second chromatographic columns 9 respectively with the 4th triple valve 6 and the front port of the 5th triple valve 7
Connection, the output end of the desorption gas compressor 11 upper port respectively with the 4th triple valve 6 and the lower end of the 5th triple valve 7
Mouth connection, the rear port of the 4th triple valve 6 and the 5th triple valve 7 is connected with tail gas discharging pipe 13, first chromatogram
The bottom part down of the chromatographic column 9 of post 8 and second is all provided with having heaters 10, and VOC on-line monitoring systems include the sum of gas chromatograph 12
According to work station 14, the drain of the catalytic combustion burner 2 is connected with gas chromatograph 12, described two first chromatographic columns 8 it is defeated
Go out end to be connected with gas chromatograph 12, the rear port of the 4th triple valve 6 and the 5th triple valve 7 with gas chromatograph 12
Connection, in addition to environmentally friendly office system 15, the environmentally friendly office system 15 are connected with data workstation 14, and the catalytic combustion burner 2 makes
With noble metal catalyst, 300 DEG C of temperature in catalytic combustion burner 2, cold start-up to uptime is less than 50 minutes, described first
Triple valve 3, the second triple valve 4, the 3rd triple valve 5, the 4th triple valve 6 and the 5th triple valve 7 are automatic valve.
The course of work of the present invention：
In the course of the work, VOC waste gas first passes through the first chromatogram for a kind of VOC on-line monitoring systems of the present invention and governing system
After the adsorption cleaning of 8 and second chromatographic column of post 9, monitor tail gas up to standard through VOC on-line monitoring systems and pass through blower fan high altitude discharge.It is full
The first chromatographic column 8 and the second chromatographic column 9 of sum after the burning of desorbing gas-catalysis, absorption organic exhaust gas generation CO2 thereon and
H2O, the first chromatographic column 8 and the second chromatographic column 9 of saturation regain adsorption capacity, recycle.
Specific processing step is as follows:
Using sample gas compressor 1 and collecting pipe, VOC gases are pumped into activated carbon adsorber (activated carbon adsorber
For the first chromatographic column 8 being cascaded and the second chromatographic column 9), VOC gases are adsorbed with activated carbon at absorption scene,
The changeable activated carbon adsorber that situ configuration two is installed in parallel, to ensure that tail gas absorption is ceaselessly continuously run.Each
Tower configuration automatic switch triple valve is adsorbed, automatic switch three can be closed in the case of activated carbon is non-stop-machine close to after saturation
Port valve carries out the replacing of activated carbon.
Activated carbon adsorber is monitored by VOC on-line monitoring systems to its adsorption effect, is set when tail gas concentration reaches
After definite value (saturation value), such as 30mg/M3 is changed to two activated carbon adsorbers.Configure two tower charcoal absorptions, saturation
Direct-on-line regeneration (desorption) afterwards, another tower is then regenerated.(also may be selected offline mode), and can open simultaneously it is a set of or
Many set systems are adsorbed.
First chromatographic column 8 and the second chromatographic column 9 carry out desorption and regeneration by the way of the desorption of heater 10 to activated carbon.The
Temperature-controllable in one chromatographic column 8 and the second chromatographic column 9, temperature sets desorption program on control computer, is at 90 to 110 DEG C
Concentration of the system meeting automatically to each adsorption tower is monitored on-line.
Untreated good adsorption tower is heated up, and the flow and temperature of gas are desorbed by PID control, in adsorption tower
VOC parsed.
VOC after parsing enters the progress catalysis burning of catalytic combustion burner 2 with helping after combustion gas mixing, uses precious metal catalyst
Agent, is catalyzed 300 DEG C of the temperature inside the box, and cold start-up to uptime is less than 50 minutes.
The tail gas that catalytic combustion burner 2 comes out carries out heat exchange by heat exchanger with cold combustion-supporting gas, it is ensured that exhaust temperature
Less than 110 DEG C, and improve heat utilization ratio.Tail gas emptying concentration is less than environmental requirement.
Multi-point detection system, mainly monitors the concentration and the VOC concentration of each floss hole of the VOC between each dividing plate.
| Performance indications | Monitoring point | Monitoring mode | Response time | Detector | Test limit |
| Numerical value | It is multiple | Circulatory monitoring | <200s/ points | FID | 0.1ppm |
Consider energy-saving design and energy recovery, for same treating capacity, operation cost is about direct catalysis combustion
1/10 or so of burning method, the 1/5 of charcoal absorption.
Using waste heat, the energy is saved.The nitrogen of the solution adsorption desorption of activated carbon is heated by hot-air in the present apparatus, this
Thermal current is both from the waste heat after catalysis burning in system.
Concentration organic exhaust gas after desorption enters catalytic burner purified treatment, can automatically adjust waste gas by system dense
Degree, when waste gas (such as toluene) concentration reaches 2000ppm, so that it may maintain spontaneous combustion, power consumption is closed automatically, operating cost is significantly
Reduction.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (4)
1. a kind of VOC on-line monitoring systems and governing system, it is characterised in that：Governing system includes sample gas compressor (1), urged
Change combustion furnace (2), the first triple valve (3), the second triple valve (4), the 3rd triple valve (5), the 4th triple valve (6), the 5th threeway
Valve (7), two the first chromatographic columns (8), two the second chromatographic columns (9), some heaters (10), desorption gas compressor (11) and
Tail gas discharging pipe (13), the input of the sample gas compressor (1) is connected with sample gas air supply pipe, the sample gas compressor
(1) output end is connected with the front port of the second triple valve (4), and the input of the catalytic combustion burner (2) is respectively with the one or three
The upper port of port valve (3) and the connection of the lower port of the 3rd triple valve (5), the lower port and the two or three of first triple valve (3)
The upper port connection of port valve (4), the lower port of second triple valve (4) is connected with the upper port of the 3rd triple valve (5), described
Rear port of the input of two the first chromatographic columns (8) respectively with the first triple valve (3) and the 3rd triple valve (5) is connected, described
Input of the output end of two the first chromatographic columns (8) respectively with two the second chromatographic columns (9) is connected, described two second chromatograms
Front port of the output end of post (9) respectively with the 4th triple valve (6) and the 5th triple valve (7) is connected, the desorption gas compression
The output end of machine (11) is connected with the upper port of the 4th triple valve (6) and the lower port of the 5th triple valve (7) respectively, and the described 4th
The rear port of triple valve (6) and the 5th triple valve (7) is connected with tail gas discharging pipe (13), first chromatographic column (8) and
The bottom part down of two chromatographic columns (9) is all provided with having heaters (10), and VOC on-line monitoring systems include gas chromatograph (12) and data
Work station (14), the drain of the catalytic combustion burner (2) is connected with gas chromatograph (12), described two first chromatographic columns
(8) output end is connected with gas chromatograph (12), and the rear port of the 4th triple valve (6) and the 5th triple valve (7) is equal
It is connected with gas chromatograph (12).
2. a kind of VOC on-line monitoring systems and governing system as claimed in claim 1, it is characterised in that：Also include Environmental Protection Agency
System (15), the environmentally friendly office system (15) is connected with data workstation (14).
3. a kind of VOC on-line monitoring systems and governing system as claimed in claim 1, it is characterised in that：The catalysis burning
Stove (2) uses noble metal catalyst, and 300 DEG C of the interior temperature of catalytic combustion burner (2), cold start-up to uptime is less than 50 points
Clock.
4. a kind of VOC on-line monitoring systems and governing system as claimed any one in claims 1 to 3, it is characterised in that：Institute
Stating the first triple valve (3), the second triple valve (4), the 3rd triple valve (5), the 4th triple valve (6) and the 5th triple valve (7) is
Automatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051560.3A CN107051102A (en) | 2017-01-20 | 2017-01-20 | A kind of VOC on-line monitoring systems and governing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051560.3A CN107051102A (en) | 2017-01-20 | 2017-01-20 | A kind of VOC on-line monitoring systems and governing system |
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| Publication Number | Publication Date |
|---|---|
| CN107051102A true CN107051102A (en) | 2017-08-18 |
Family
ID=59598104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710051560.3A Pending CN107051102A (en) | 2017-01-20 | 2017-01-20 | A kind of VOC on-line monitoring systems and governing system |
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| Country | Link |
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Cited By (4)
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| CN108043064A (en) * | 2017-12-29 | 2018-05-18 | 上海蓝科石化环保科技股份有限公司 | A kind of VOCs recovery process and system |
| CN108088921A (en) * | 2017-12-12 | 2018-05-29 | 优泰科技（深圳）有限公司 | VOC on-line computing models |
| CN109364729A (en) * | 2018-12-14 | 2019-02-22 | 太和县大华能源科技有限公司 | The purification device for the sewage exhaust gas that reviver industry generates |
| CN115228242A (en) * | 2022-07-23 | 2022-10-25 | 中山市格源环保设备有限公司 | Aluminum product paint spraying organic waste gas treatment system and flue gas purification method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088921A (en) * | 2017-12-12 | 2018-05-29 | 优泰科技（深圳）有限公司 | VOC on-line computing models |
| CN108043064A (en) * | 2017-12-29 | 2018-05-18 | 上海蓝科石化环保科技股份有限公司 | A kind of VOCs recovery process and system |
| CN108043064B (en) * | 2017-12-29 | 2023-10-24 | 上海蓝科石化环保科技股份有限公司 | VOCs recovery process and system |
| CN109364729A (en) * | 2018-12-14 | 2019-02-22 | 太和县大华能源科技有限公司 | The purification device for the sewage exhaust gas that reviver industry generates |
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Application publication date: 20170818 |