CN220443487U - Waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene - Google Patents
Waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene Download PDFInfo
- Publication number
- CN220443487U CN220443487U CN202321731966.3U CN202321731966U CN220443487U CN 220443487 U CN220443487 U CN 220443487U CN 202321731966 U CN202321731966 U CN 202321731966U CN 220443487 U CN220443487 U CN 220443487U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- chloropropene
- propylene
- spray
- tower body
- 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.)
- Active
Links
- 239000002912 waste gas Substances 0.000 title claims abstract description 57
- OWXJKYNZGFSVRC-NSCUHMNNSA-N (e)-1-chloroprop-1-ene Chemical compound C\C=C\Cl OWXJKYNZGFSVRC-NSCUHMNNSA-N 0.000 title claims abstract description 26
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 22
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 40
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 238000009833 condensation Methods 0.000 claims abstract description 15
- 230000005494 condensation Effects 0.000 claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 3
- 238000006303 photolysis reaction Methods 0.000 claims description 3
- 230000015843 photosynthesis, light reaction Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 abstract description 20
- 239000003344 environmental pollutant Substances 0.000 abstract description 15
- 231100000719 pollutant Toxicity 0.000 abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- -1 methane hydrocarbon Chemical class 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- VRTNIWBNFSHDEB-UHFFFAOYSA-N 3,3-dichloroprop-1-ene Chemical compound ClC(Cl)C=C VRTNIWBNFSHDEB-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- UOORRWUZONOOLO-OWOJBTEDSA-N (E)-1,3-dichloropropene Chemical compound ClC\C=C\Cl UOORRWUZONOOLO-OWOJBTEDSA-N 0.000 description 1
- PNLQPWWBHXMFCA-UHFFFAOYSA-N 2-chloroprop-1-ene Chemical compound CC(Cl)=C PNLQPWWBHXMFCA-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- ULYZAYCEDJDHCC-UHFFFAOYSA-N isopropyl chloride Chemical compound CC(C)Cl ULYZAYCEDJDHCC-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SNMVRZFUUCLYTO-UHFFFAOYSA-N n-propyl chloride Chemical compound CCCCl SNMVRZFUUCLYTO-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a device for treating waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene, and belongs to the technical field of waste gas treatment. An exhaust gas treatment device for preparing chloropropene by high-temperature chlorination of propylene, comprising: the device comprises condensation recovery equipment connected with waste gas, ultraviolet light treatment equipment connected with the condensation recovery equipment, a spray absorption tower connected with the ultraviolet light treatment equipment, an induced draft fan connected with the spray absorption tower and a chimney connected with the induced draft fan. The device is used for treating the waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene, so that target pollutants of the waste gas can meet related emission requirements.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment, and particularly relates to a device for treating waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene.
Background
The waste gas generated in the project of preparing chloropropene by high-temperature chlorination of propylene mainly comes from the unstructured waste gas dissipated by a rectifying tower low-boiling, tank area finished product tank, a nitrogen sealing device of a byproduct tank, a breather valve and a distilling tower. The main components of the waste gas are as follows: propylene, chloropropene, low boiling (2-chloropropene, 2-chloropropane), high boiling (1-chloropropane, 1.2-dichloropropane, 2.3-dichloropropene, cis-1.3-dichloropropene, trans-1.3-dichloropropene) chloropropene, moisture and the like.
The existing exhaust gas treatment process of the applicant comprises the following steps: the applicant intends to upgrade and reform the existing treatment process because the requirements of new emission standard cannot be met due to the secondary condensation recovery (freon) +activated carbon adsorption, so that the treated waste gas meets the related requirements in the emission standard of pollutants in petrochemical industry, GB 31571-2015.
Disclosure of Invention
In view of the above, the technical problem to be solved by the utility model is to provide a device for treating the waste gas from the production of chloropropene by high-temperature chlorination of propylene, so as to enable the target pollutants in the waste gas to reach the standard for emission.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an exhaust gas treatment device for preparing chloropropene by high-temperature chlorination of propylene, comprising: the device comprises condensation recovery equipment connected with waste gas, ultraviolet light treatment equipment connected with the condensation recovery equipment, a spray absorption tower connected with the ultraviolet light treatment equipment, an induced draft fan connected with the spray absorption tower and a chimney connected with the induced draft fan.
As a further preferable scheme, the condensation recovery device is a secondary condenser and comprises a compressor, a condenser, a throttle valve and an evaporator which are connected in sequence.
The two-stage condenser is used as a pretreatment facility for purifying high-concentration waste gas so as to reduce the organic load and recycle the organic matters.
As a further preferred embodiment, the ultraviolet light treatment device is an eximer Excimer photolysis exhaust gas treatment device.
The Excimer (Excited Dimer) ultraviolet light source is utilized to open molecular bond of pollutant in the waste gas, and then the oxidation reaction is carried out through active oxygen atoms and hydroxyl free radicals, so that the purposes of purification and deodorization are achieved.
As a further preferred scheme, spray absorption tower includes the tower body, sets up at the defroster at tower body top, sets up a plurality of layers of packing in the tower body, with the inside space intercommunication of tower body spray system, be located the waste gas entry of tower body bottom and be located the waste gas export at top of the tower, waste gas entry with ultraviolet light treatment facility's waste gas export is connected, waste gas export is connected with the draught fan, spray system includes the pump, the export and the spray piping connection of pump, the spray piping stretches into the tower body in and sets up a plurality of nozzles, the entry of pump is connected with the bottom of tower body, the bottom of tower body holds the spray liquid.
Preferably, the spray liquid is an alkali solution.
The spray absorption tower is arranged, so that acid gas comprising hydrogen chloride and trace phosgene is generated after chlorine element contained in the waste gas is decomposed by ultraviolet light treatment equipment, and the waste gas is purified more efficiently.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model is based on the production characteristics of the waste gas from the high-temperature chlorination of propylene to prepare chloropropene, combines the environmental protection requirement, emission standard and the running stability thereof, adopts the treatment process of ' secondary condensation recovery + excimer ultraviolet light treatment + spray absorption ', so that the waste gas from the high-temperature chlorination of propylene to prepare chloropropene after being treated meets the emission limit of 20mg/m of chloropropene in the emission standard of pollutants in petrochemical industry ' GB31571-2015 3 Hydrogen chloride emission limit 30mg/L, total non-methane hydrocarbon emission limit 20mg/m 3 Is not limited.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1: the utility model relates to a structural schematic diagram of a waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene;
fig. 2: the spray absorption tower in FIG. 1 is a schematic structural diagram of the utility model;
the device comprises a 1-condensation recovery device, a 2-ultraviolet light treatment device, a 3-spray absorption tower, a 4-induced draft fan, a 5-chimney, a 6-tower body, a 7-demister, an 8-filler, a 9-waste gas inlet, a 10-waste gas outlet, an 11-pump, a 12-spray pipeline, a 13-nozzle and a 14-spray liquid.
Detailed Description
For a better understanding of the present utility model, the following examples are set forth to further illustrate the utility model, but are not to be construed as limiting the utility model. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only for the purpose of explaining the present patent and are not to be construed as limiting the utility model.
As shown in fig. 1, a device for treating waste gas from the production of chloropropene by high-temperature chlorination of propylene comprises: the device comprises condensation recovery equipment 1 connected with waste gas, ultraviolet light treatment equipment 2 connected with the condensation recovery equipment 1, a spray absorption tower 3 connected with the ultraviolet light treatment equipment 2, an induced draft fan 4 connected with the spray absorption tower 3 and a chimney 5 connected with the induced draft fan 4.
Based on the scheme, the waste gas firstly enters the condensation recovery device 1, and part of organic matters in the waste gas are condensed into liquid state and separated; then enters ultraviolet light treatment equipment, and adopts the Expimer ultraviolet rays to mineralize high molecular pollutants into low molecular harmless substances such as water, carbon dioxide and the like; the chlorine-containing waste gas is decomposed by excimer equipment to generate acid gas hydrogen chloride and trace phosgene, the acid gas hydrogen chloride and trace phosgene are efficiently purified by a spray absorption tower, and the treated gas is discharged up to the standard through a chimney.
The condensation recovery apparatus 1 adopts a two-stage condenser, comprising a compressor, a condenser, a throttle valve and an evaporator which are connected in sequence.
The condensing mode adopted by the two-stage condenser is Freon condensation. The compressor compresses gaseous freon into high-temperature and high-pressure gaseous freon, then sends the gaseous freon to the condenser to dissipate heat and then becomes normal-temperature and high-pressure liquid freon, then enters the evaporator through the throttle valve, as the space of the freon is suddenly increased from the throttle valve to the evaporator, the pressure is reduced, the liquid freon is vaporized and becomes gaseous freon, so that a large amount of heat is absorbed, the evaporator is cooled, water vapor and organic matters in waste gas are condensed into liquid after encountering the cold evaporator, and the liquid freon flows out along the water pipe, and then the gaseous freon returns to the compressor to be compressed continuously and circulated continuously.
The secondary condenser is used as a pretreatment facility for purifying high-concentration waste gas so as to reduce the organic load and recycle the organic matters.
The ultraviolet light treatment equipment 2 adopts an Expimer Excimer photolysis waste gas treatment equipment, daily maintenance is not needed, and the ultraviolet light treatment equipment can normally work only by switching on a power supply, and has extremely low operation and maintenance cost.
The Excimer (Excited Dimer) ultraviolet light source is utilized to open molecular bond of pollutant in the waste gas, and then the oxidation reaction is carried out through active oxygen atoms and hydroxyl free radicals, so that the purposes of purification and deodorization are achieved. The specific process is as follows:
(1) The high-energy photons radiated by the ultraviolet light source of the specifier are enough to open molecular bonds of most gas-phase pollutants in nature; can realize photochemical reaction which is difficult or impossible to realize by the traditional ultraviolet light source, and efficiently photolyzes malodorous gas, benzene series, VOCs and the like to form active molecular fragments;
(2) Oxygen and water molecules in the waste gas absorb the energy of the vacuum ultraviolet rays of the specifimer to generate a large amount of active oxygen atoms and hydroxyl free radicals, so that macromolecular gas-phase pollutants are strongly oxidized, active groups are continuously consumed in the reaction, and finally the macromolecular pollutants are mineralized into H 2 O、CO 2 And harmless or low-harmful small molecular compounds, thereby achieving the effect of purification and deodorization.
As shown in fig. 2, the spray absorption tower 3 comprises a tower body 6, a demister 7 arranged at the top of the tower body 6, a plurality of layers of packing 8 arranged in the tower body 6, a spray system communicated with the inner space of the tower body 6, an exhaust gas inlet 9 positioned at the bottom of the tower body 6 and an exhaust gas outlet 10 positioned at the top of the tower, wherein the exhaust gas inlet 9 is connected with the exhaust gas outlet 10 of the ultraviolet light treatment equipment 2, the exhaust gas outlet 10 is connected with the induced draft fan 4, the spray system comprises a pump 11, the outlet of the pump 11 is connected with a spray pipeline 12, the spray pipeline 12 stretches into the tower body 6 and is provided with a plurality of nozzles 13, the inlet of the pump 11 is connected with the bottom of the tower body 6, and the bottom of the tower body 6 contains spray liquid 14.
Spray liquor 14 is selected from alkali solutions such as: sodium hydroxide solution, potassium hydroxide solution, and the like.
The spray absorber 3 is provided because acid gas including hydrogen chloride and trace phosgene is generated after decomposition by the ultraviolet light treatment apparatus 2 in consideration of chlorine element contained in the exhaust gas, and the exhaust gas can be purified more efficiently.
The waste gas flows up in the tower, the spray liquid 14 is sprayed out by the spray nozzle 13 to move downwards, and larger dust particles are captured by liquid drops through the action mechanisms of inertial collision, contact retention, dust condensation due to humidification and the like between pollutants in the waste gas and spray liquid 14 drops. When the gas flow rate is smaller, the liquid drops with the particles are deposited at the bottom of the tower under the action of gravity; the purified exhaust gas is discharged from an exhaust gas outlet 10 at the top through a demister 7 for removing entrained fine liquid drops.
The treatment device ensures that the waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene meets the emission limit value of 20mg/m of chloropropene in the emission standard of pollutants in petrochemical industry GB31571-2015 after being treated 3 Hydrogen chloride emission limit 30mg/L, total non-methane hydrocarbon emission limit 20mg/m 3 Is not limited.
The following is an application case description.
The device is used for treating the waste gas generated in the process of preparing chloropropene by high-temperature chlorination of certain propylene, and the main pollutants in the waste gas and the removal rate thereof are counted as follows:
as can be seen from the table, the device is used for treating the waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene, and meets the emission limit value of 20mg/m of chloropropene in the emission standard of pollutants in petrochemical industry GB31571-2015 3 Hydrogen chloride emission limit 30mg/L, total non-methane hydrocarbon emission limit 20mg/m 3 Is not limited; meanwhile, the treatment units are organically matched and mutually supported, so that the target pollutants in the waste gas generated in the process of preparing chloropropene by high-temperature chlorination of propylene are effectively removed, and the emission requirements are finally met.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (4)
1. A propylene high temperature chlorination system chloropropene exhaust treatment device which is characterized in that: comprising the following steps: the condensing and recycling device is connected with waste gas, the ultraviolet light treatment device is connected with the condensing and recycling device, the spray absorption tower is connected with the ultraviolet light treatment device, the induced draft fan is connected with the spray absorption tower, the chimney is connected with the induced draft fan, the spray absorption tower comprises a tower body, a demister arranged at the top of the tower body, a plurality of layers of fillers arranged in the tower body, a spray system communicated with the inner space of the tower body, a waste gas inlet arranged at the bottom of the tower body and a waste gas outlet arranged at the top of the tower, the waste gas inlet is connected with the waste gas outlet of the ultraviolet light treatment device, the waste gas outlet is connected with the induced draft fan, the spray system comprises a pump, the outlet of the pump is connected with a spray pipeline, the spray pipeline stretches into the tower body and is provided with a plurality of nozzles, and the inlet of the pump is connected with the bottom of the tower body, and the bottom of the tower body accommodates spray liquid.
2. The device for treating the waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene as claimed in claim 1, wherein: the condensation recovery device is a secondary condenser and comprises a compressor, a condenser, a throttle valve and an evaporator which are connected in sequence.
3. The device for treating the waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene as claimed in claim 1, wherein: the ultraviolet light treatment device is an expimer Excimer photolysis waste gas treatment device.
4. The device for treating the waste gas generated in the preparation of chloropropene by high-temperature chlorination of propylene as claimed in claim 1, wherein: the spray liquid is an alkali solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321731966.3U CN220443487U (en) | 2023-07-03 | 2023-07-03 | Waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321731966.3U CN220443487U (en) | 2023-07-03 | 2023-07-03 | Waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220443487U true CN220443487U (en) | 2024-02-06 |
Family
ID=89735974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321731966.3U Active CN220443487U (en) | 2023-07-03 | 2023-07-03 | Waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220443487U (en) |
-
2023
- 2023-07-03 CN CN202321731966.3U patent/CN220443487U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102861504B (en) | Device for treating organic waste gas by applying photochemical technology | |
| CN105597535A (en) | Method for treating mixed organic waste gas containing chlorine, hydrogen chloride and oxynitride | |
| CN102161534B (en) | Device for processing dimethylamine exhaust gas and wastewater | |
| CN105056743A (en) | VOCs waste gas treatment method and device | |
| CN204619569U (en) | The exhaust treatment system that a kind of epoxychloropropane produces in producing | |
| CN202823138U (en) | Organic waste gas treatment device with photochemistry technology | |
| CN107715691A (en) | A kind of photocatalysis aqueous vapor treating column | |
| CN106902621A (en) | Purifier | |
| CN220443487U (en) | Waste gas treatment device for preparing chloropropene by high-temperature chlorination of propylene | |
| CN207025024U (en) | Purifier | |
| CN213050101U (en) | Waste gas treatment system suitable for coal chemical industry | |
| CN211612212U (en) | Benzyl chloride tail gas treatment system | |
| CN212039753U (en) | Novel organic waste gas deodorization equipment of mill | |
| CN105498495A (en) | Device for treating waste gas by Fenton oxidation | |
| CN112237825A (en) | Adsorption recovery and sulfate radical oxidation treatment of CS-containing2System and process for exhaust gas | |
| CN210786806U (en) | Coating waste gas treatment equipment | |
| CN112755775A (en) | Efficient deodorization flue gas treatment process | |
| WO2021035952A1 (en) | Treatment process for papermaking exhaust gases | |
| CN105879659A (en) | VOCs (volatile organic compounds) purification method for waste gas of petrochemical industry | |
| CN207462990U (en) | It is desorbed the recycling of steam organic matter and fixed gas purifying integration device | |
| CN216654044U (en) | Waste gas combined treatment system that produces among chemical industry pharmaceutical wastewater treatment process | |
| CN115400583B (en) | Device and method for treating VOCs through micro-nano bubble catalytic oxidation and adsorption coupling | |
| CN205550039U (en) | Compound plasma light oxygen catalysis organic waste gas purifying equipment | |
| CN212790409U (en) | Waste gas treatment device for coal chemical industry sewage treatment | |
| CN208449014U (en) | A kind of volatile organic waste gas treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |