CN117942702B - Waste gas treatment conversion agent for carbon disulfide and preparation method and application thereof - Google Patents
Waste gas treatment conversion agent for carbon disulfide and preparation method and application thereof Download PDFInfo
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- CN117942702B CN117942702B CN202410345690.8A CN202410345690A CN117942702B CN 117942702 B CN117942702 B CN 117942702B CN 202410345690 A CN202410345690 A CN 202410345690A CN 117942702 B CN117942702 B CN 117942702B
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- waste gas
- carbon disulfide
- gas treatment
- conversion agent
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- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 56
- 239000002912 waste gas Substances 0.000 title claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003463 adsorbent Substances 0.000 claims abstract description 59
- 239000003054 catalyst Substances 0.000 claims abstract description 39
- 239000002608 ionic liquid Substances 0.000 claims abstract description 29
- 239000004530 micro-emulsion Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000003607 modifier Substances 0.000 claims abstract description 20
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 claims abstract description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 12
- 230000005686 electrostatic field Effects 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 33
- 239000007853 buffer solution Substances 0.000 claims description 32
- 238000002156 mixing Methods 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 28
- 239000002262 Schiff base Substances 0.000 claims description 24
- 150000004753 Schiff bases Chemical class 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- FENJKTQEFUPECW-UHFFFAOYSA-N 3-anilinopropanenitrile Chemical compound N#CCCNC1=CC=CC=C1 FENJKTQEFUPECW-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000002791 soaking Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 9
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 9
- 239000004471 Glycine Substances 0.000 claims description 9
- FIQMHBFVRAXMOP-UHFFFAOYSA-N triphenylphosphane oxide Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(=O)C1=CC=CC=C1 FIQMHBFVRAXMOP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 8
- 239000004359 castor oil Substances 0.000 claims description 8
- 235000019438 castor oil Nutrition 0.000 claims description 8
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 8
- 229920002530 polyetherether ketone Polymers 0.000 claims description 8
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- -1 1-butyl-3-methylimidazole hexafluorophosphate Chemical compound 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052622 kaolinite Inorganic materials 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 230000004048 modification Effects 0.000 abstract description 10
- 238000012986 modification Methods 0.000 abstract description 10
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 239000003093 cationic surfactant Substances 0.000 abstract 1
- 208000012839 conversion disease Diseases 0.000 abstract 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 35
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 21
- 238000012360 testing method Methods 0.000 description 8
- 230000007062 hydrolysis Effects 0.000 description 7
- 238000006460 hydrolysis reaction Methods 0.000 description 7
- 230000003009 desulfurizing effect Effects 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- NWIICCMMNLMQMY-UHFFFAOYSA-K 1-butyl-3-methylimidazol-3-ium phosphate Chemical compound [O-]P([O-])([O-])=O.CCCCn1cc[n+](C)c1.CCCCn1cc[n+](C)c1.CCCCn1cc[n+](C)c1 NWIICCMMNLMQMY-UHFFFAOYSA-K 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000002903 organophosphorus compounds Chemical class 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910014033 C-OH Inorganic materials 0.000 description 1
- 229910014570 C—OH Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- FQVNUZAZHHOJOH-UHFFFAOYSA-N copper lanthanum Chemical group [Cu].[La] FQVNUZAZHHOJOH-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- NNLJGFCRHBKPPJ-UHFFFAOYSA-N iron lanthanum Chemical compound [Fe].[La] NNLJGFCRHBKPPJ-UHFFFAOYSA-N 0.000 description 1
- 125000000686 lactone group Chemical group 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- AZQWKYJCGOJGHM-UHFFFAOYSA-N para-benzoquinone Natural products O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 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
-
- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/507—Sulfur oxides by treating the gases with other liquids
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8609—Sulfur oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/0232—Purification, e.g. degassing
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes
-
- 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
- B01D2253/25—Coated, impregnated or composite 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
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/306—Surface area, e.g. BET-specific surface
-
- 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
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/308—Pore size
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- 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)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to the technical field of waste gas treatment, and discloses a waste gas treatment conversion agent for carbon disulfide, a preparation method and application thereof, wherein the waste gas treatment conversion agent comprises the following components in parts by mass: 8-16 parts of ionic liquid microemulsion, 1.5-3.5 parts of catalyst and 36-44 parts of modified adsorbent. The adsorbent is treated by alkali liquor to raise surface energy, then modifier is added to enhance surface polarity to make binary modification, and the ionic liquid microemulsion formed by compounding ionic liquid and quaternary ammonium salt cationic surfactant is high in adsorption activity, and under the action of directional oxidation catalysis of catalyst, the carbon disulfide with low concentration is promoted to be adsorbed and converted into elemental sulfur by means of superposition of electrostatic field, so that the reaction conversion rate is high, and the treatment process is simple.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment conversion agent for carbon disulfide, a preparation method and application thereof.
Background
Carbon disulfide is an inorganic compound and also a pollutant, is widely existed in natural gas, coke oven gas, coal gas, water gas, refinery gas and claus tail gas, and can affect the environment and harm the health of people, industrial production is the main production reason of carbon disulfide, chemical fiber industry development is rapid, the production of carbon disulfide as raw material is also expanded, in the production process, each process flow is accompanied with the production of sulfur dioxide, condensation and alkali treatment are generally adopted to obtain sulfide, but because industrial waste is generally accompanied with the production of various substances, substances with similar properties are easy to be treated together, such as carbon dioxide is generally adopted in the collection treatment of carbon disulfide, the purity of the obtained sulfide product is low, and the availability is not high.
The existing carbon disulfide waste gas treatment conversion agent generally adopts a hydrolysis desulfurizing agent, so that the carbon disulfide can be reacted to generate hydrogen sulfide, but an acidic product obtained by the reaction also reacts with an alkaline component in the hydrolysis desulfurizing agent, so that the desulfurizing efficiency and the activity of the desulfurizing agent are affected; the hydrolysis temperature of the carbon disulfide is higher, multistage hydrolysis is needed to convert the carbon disulfide into an available target product, and the reaction is complex and not efficient;
patent CN102600848a discloses a preparation method and application of a low-temperature plasma modified hydrolysis catalyst, the modification method of the carbon disulfide hydrolysis catalyst is simple, the operability is strong, the modified hydrolysis catalyst has good effect, but is not suitable for removing high-concentration carbon disulfide;
patent CN113244927a discloses a method for purifying carbon disulfide and recovering sulfur by using a DBD plasma synergistic catalyst, and the prepared catalyst is a copper lanthanum bimetallic or iron lanthanum bimetallic catalyst, which can inhibit the generation of sulfur dioxide and promote the conversion of carbon disulfide into elemental sulfur, so that secondary pollution is avoided, and the recycling of sulfur is realized, but the plasma technology and the use of rare earth metal are not suitable for popularization and use, and the cost is high.
Disclosure of Invention
In view of the above problems, the present invention is directed to a conversion agent for treating carbon disulfide waste gas and a treatment process thereof.
The technical content of the invention is as follows:
the invention provides a preparation method of a conversion agent for treating waste gas of carbon disulfide, which comprises the following specific processes: adding the modified adsorbent into the ionic liquid microemulsion for ultrasonic dispersion, adding a catalyst, and pumping nitrogen for 3-5 times under a sealing condition to obtain an exhaust gas treatment conversion agent;
The dosage of each component is as follows by mass: 8-16 parts of ionic liquid microemulsion, 1.5-3.5 parts of catalyst and 36-44 parts of modified adsorbent;
The ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazole hexafluorophosphate and cetyltrimethylammonium bromide with the mass ratio of 22-24:11-15 into water containing 30-50% of water-soluble castor oil with the mass ratio of 3-5:2, and stirring and uniformly mixing at the temperature of 50-70 ℃;
The ionic liquid microemulsion is formed by compounding the ionic liquid and the cationic active agent, has higher stability, can infiltrate into the modified adsorbent, and directionally adsorbs the fat-soluble carbon disulfide in the waste gas to react.
The catalyst is prepared by adding an N-cyanoethylaniline solution and ammonium metatungstate into a buffer solution according to the mass ratio of 4-6:1-3, uniformly mixing, preserving heat under the water bath condition, adding triphenylphosphine oxide with the mass fraction of 20-28% under the low pressure condition of 0.06-0.08MPa, and uniformly stirring and mixing for 60-80 min;
the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 2-3 times of the mass of the N-cyanoethylaniline solution;
The catalyst is prepared by compounding amine liquid with catalytic oxidation and a tungsten-based catalyst, introducing an organic phosphorus compound to form a directional oxidation catalyst of carbon disulfide, accelerating the adsorption oxidation reaction of the modified adsorbent, the ionic liquid microemulsion and the carbon disulfide through an oxygen atom conversion reaction, further improving the purity of a treated product of the carbon disulfide, and modifying pore channels of the adsorbent by a hydrophobic group contained in the catalyst to maintain the pore size of the adsorbent.
The modified adsorbent is prepared by soaking the adsorbent in Schiff base solution with the volume multiple of 3-5 times of the adsorbent for 80-90min, adding modifier with the mass fraction of 8-14% of the adsorbent, uniformly mixing, and heating in an oil bath at the oil heating temperature of 130-140 ℃ for 40-60min, wherein the Schiff base solution is prepared by dissolving Schiff base in ethylene glycol according to the mass ratio of 1-3:7-10; wherein the adsorbent is one of active carbon, graphene, montmorillonite, kaolinite and zeolite molecular sieve;
the modifier consists of glycine and sulfonated polyether ether ketone in the mass ratio of 11-15:17-19;
the soaking is carried out at 30-60deg.C for 60-90min;
In the modification treatment of the modified adsorbent, the adsorbent is treated by Schiff base dissolved in inert polar solution, so that the adsorbent is subjected to unitary modification, the surface aperture and specific surface area are increased, the adsorption capacity to carbon disulfide is enhanced, then the multi-active group modifier is used for performing multi-element secondary modification treatment, active groups are introduced, the stability and polarity of the adsorbent can be improved through the effects of electrostatic adsorption and the like with high-efficiency chelating groups such as hydroxyl groups, amino groups, alkyl groups and ether bonds in the catalyst, the diffusion reaction capacity of the carbon disulfide to the inside of the adsorbent is promoted, the adsorption and reaction capacity to acid gas is further enhanced, and the modified adsorbent is more suitable for removing carbon disulfide gas.
The invention also provides an application of the waste gas treatment conversion agent, wherein the waste gas treatment conversion agent is used for treating waste gas of carbon disulfide, and the treatment method comprises the following steps:
Step 1: treating the waste gas containing carbon disulfide by a waste gas treatment conversion agent for 40-60min, and then treating for 10-20min under the action of an electrostatic field to obtain treated gas;
step 2: compressing the treated gas, condensing the treated gas by a condenser to obtain condensate, and carrying out specific gravity separation to obtain elemental sulfur;
the output voltage of the electrostatic field is 250-300V, and the current is 0.1-0.3mA.
The beneficial effects are that: the preparation method of the waste gas treatment conversion agent for carbon disulfide, provided by the invention, has the advantages that the prepared waste gas treatment conversion agent is applied to treatment of industrial waste gas, the carbon disulfide in the waste gas can be treated directionally, the treatment efficiency is high, the concentration of the carbon disulfide in the treated waste gas is less than 0.05ppm, the modified adsorbent contains multiple activated reaction sites, the ionic liquid microemulsion is compounded, the oriented catalyst is loaded, the carbon disulfide can be adsorbed and reacted thoroughly, the elemental sulfur is formed, the conversion rate is high, and the purity of the elemental sulfur of the obtained carbon disulfide conversion product is high;
The application of the waste gas treatment conversion agent provided by the invention is applied to the waste gas treatment of carbon disulfide, the treatment method is simple, and the high-efficiency conversion of carbon disulfide is realized by superposing an electrostatic field after the waste gas treatment conversion agent treats the waste gas for a period of time.
Drawings
FIG. 1 is a graph showing the adsorption amount of the modified adsorbent prepared in example 1;
FIG. 2 is a graph showing pore size distribution of the modified adsorbent prepared in example 1.
Detailed Description
The application is described in further detail below with reference to specific examples, which are intended to be illustrative only and not to be limiting of the scope of the application, as various equivalent modifications to the application will fall within the scope of the appended claims, as will be appreciated by those skilled in the art upon reading the application.
All materials and reagents of the invention are materials and reagents of the conventional market unless specified otherwise.
Example 1
The waste gas treatment conversion agent for the carbon disulfide comprises the following components in parts by mass: 12 parts of ionic liquid microemulsion, 2.5 parts of catalyst and 40 parts of modified adsorbent;
The ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazole hexafluorophosphate and cetyltrimethylammonium bromide with the mass ratio of 23:13 into water containing 40% of water-soluble castor oil with the mass ratio of 4:2, and stirring and uniformly mixing at the temperature of 60 ℃;
The modified adsorbent is obtained by soaking activated carbon in Schiff base solution with the volume multiple of 4 times of the activated carbon for 85min, adding modifier with the mass fraction of 11% of the activated carbon, uniformly mixing, and heating in an oil bath, wherein the oil heating temperature is 135 ℃ and the oil heating time is 50min; the soaking is carried out for 75min at the temperature of 45 ℃, the Schiff base solution is obtained by dissolving Schiff base in ethylene glycol according to the mass ratio of 2:8, and the modifier is composed of glycine and sulfonated polyether ether ketone according to the mass ratio of 13:18;
the catalyst is prepared by adding buffer solution into N-cyanoethylaniline solution and ammonium metatungstate according to the mass ratio of 5:2, uniformly mixing, preserving heat for 30min under the water bath condition of 39 ℃, adding triphenylphosphine oxide with the mass fraction of 20-24% under the low pressure condition of 0.07MPa, and uniformly stirring and mixing for 70 min; the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 2 times of the mass of the N-cyanoethylaniline solution.
Example 2
The waste gas treatment conversion agent for the carbon disulfide comprises the following components in parts by mass: 8 parts of ionic liquid microemulsion, 1.5 parts of catalyst and 36 parts of modified adsorbent;
The ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazolium phosphate and cetyltrimethylammonium bromide with the mass ratio of 22:11 into water containing 30% of water-soluble castor oil with the mass ratio of 3:2, and stirring and uniformly mixing at 50 ℃;
The modified adsorbent is obtained by soaking activated carbon in Schiff base solution with the volume multiple of 3 times of that of the activated carbon for 80min, adding modifier with the mass fraction of 8% of that of the adsorbent, uniformly mixing, and heating in an oil bath, wherein the oil heating temperature is 130 ℃ and the oil heating time is 40min; the soaking is carried out for 60min at the temperature of 30 ℃, the Schiff base solution is obtained by dissolving Schiff base in ethylene glycol according to the mass ratio of 1:7, and the modifier is composed of glycine and sulfonated polyether ether ketone according to the mass ratio of 11:17;
The catalyst is prepared by adding buffer solution into N-cyanoethylaniline solution and ammonium metatungstate according to the mass ratio of 4:1, uniformly mixing, preserving heat for 30min under the water bath condition of 39 ℃, adding triphenylphosphine oxide with the mass fraction of 20% under the low pressure condition of 0.06MPa, and uniformly stirring for 60 min; the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 2 times of the mass of the N-cyanoethylaniline solution.
Example 3
The waste gas treatment conversion agent for the carbon disulfide comprises the following components in parts by mass: 16 parts of ionic liquid microemulsion, 3.5 parts of catalyst and 44 parts of modified adsorbent;
The ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazole hexafluorophosphate and cetyltrimethylammonium bromide with the mass ratio of 24:15 into water containing 50% of water-soluble castor oil with the mass ratio of 5:2, and stirring and uniformly mixing at the temperature of 70 ℃;
the modified adsorbent is obtained by soaking montmorillonite in Schiff base solution with volume multiple of 5 times of montmorillonite for 90min, adding modifier with mass fraction of 14% of adsorbent, mixing, and heating in oil bath at 140deg.C for 60min; the soaking is carried out for 90min at the temperature of 60 ℃, the Schiff base solution is obtained by dissolving Schiff base in ethylene glycol according to the mass ratio of 3:10, and the modifier is composed of glycine and sulfonated polyether ether ketone according to the mass ratio of 15:19;
the catalyst is prepared by adding buffer solution into N-cyanoethylaniline solution and ammonium metatungstate according to the mass ratio of 6:3, uniformly mixing, preserving heat for 30min under the water bath condition of 39 ℃, adding triphenylphosphine oxide with the mass fraction of 28% under the low pressure condition of 0.08MPa, and uniformly mixing for 80 min; the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 3 times of the mass of the N-cyanoethylaniline solution.
Example 4
The waste gas treatment conversion agent for the carbon disulfide comprises the following components in parts by mass: 8 parts of ionic liquid microemulsion, 3.5 parts of catalyst and 36 parts of modified adsorbent;
the ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazolium phosphate and cetyltrimethylammonium bromide with the mass ratio of 22:15 into water containing 35% of water-soluble castor oil with the mass ratio of 4:2, and stirring and uniformly mixing at the temperature of 55 ℃;
The modified adsorbent is obtained by soaking kaolinite in Schiff base solution with volume multiple of 3% of kaolinite for 90min, adding modifier with mass fraction of 14% of adsorbent, mixing, and heating in oil bath at 130deg.C for 60min; the soaking is carried out for 90min at the temperature of 30 ℃, the Schiff base solution is obtained by dissolving Schiff base in ethylene glycol according to the mass ratio of 1:10, and the modifier is composed of glycine and sulfonated polyether ether ketone according to the mass ratio of 11:19;
The catalyst is prepared by adding buffer solution into N-cyanoethylaniline solution and ammonium metatungstate according to the mass ratio of 4:3, uniformly mixing, preserving heat for 30min under the water bath condition of 39 ℃, adding triphenylphosphine oxide with the mass fraction of 20% under the low pressure condition of 0.06MPa, and uniformly mixing for 80 min; the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 2 times of the mass of the N-cyanoethylaniline solution.
Example 5
The waste gas treatment conversion agent for the carbon disulfide comprises the following components in parts by mass: 16 parts of ionic liquid microemulsion, 1.5 parts of catalyst and 44 parts of modified adsorbent;
The ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazole hexafluorophosphate and cetyltrimethylammonium bromide with the mass ratio of 21:12 into water containing 45% of water-soluble castor oil with the mass ratio of 4:2, and stirring and uniformly mixing at the temperature of 65 ℃;
The modified adsorbent is obtained by soaking zeolite molecular sieve in Schiff base solution with volume multiple of 5 times of zeolite molecular sieve for 80min, adding modifier with mass fraction of 11% of adsorbent, mixing, and heating in oil bath at 140deg.C for 40min; the soaking is carried out for 60min at the temperature of 60 ℃, the Schiff base solution is obtained by dissolving Schiff base in ethylene glycol according to the mass ratio of 3:7, and the modifier is composed of glycine and sulfonated polyether ether ketone according to the mass ratio of 15:17;
The catalyst is prepared by adding buffer solution into N-cyanoethylaniline solution and ammonium metatungstate according to the mass ratio of 4:3, uniformly mixing, preserving heat for 30min under the water bath condition of 39 ℃, adding triphenylphosphine oxide with the mass fraction of 20% under the low pressure condition of 0.08MPa, and uniformly stirring for 60 min; the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 3 times of the mass of the N-cyanoethylaniline solution.
Example 6
The waste gas treatment conversion agent for the carbon disulfide comprises the following components in parts by mass: 10 parts of ionic liquid microemulsion, 2 parts of catalyst and 38 parts of modified adsorbent;
the ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazolium phosphate and cetyltrimethylammonium bromide with the mass ratio of 22:14 into water containing 40% of water-soluble castor oil with the mass ratio of 5:2, and stirring and uniformly mixing at the temperature of 70 ℃;
the modified adsorbent is obtained by soaking activated carbon in Schiff base solution with the volume multiple of 3 times of that of the activated carbon for 85min, adding modifier with the mass fraction of 13% of the adsorbent, uniformly mixing, and heating in an oil bath, wherein the oil heating temperature is 135 ℃ and the oil heating time is 45min; the soaking is carried out for 60min at the temperature of 45 ℃, the Schiff base solution is obtained by dissolving Schiff base in ethylene glycol according to the mass ratio of 3:10, and the modifier is composed of glycine and sulfonated polyether ether ketone according to the mass ratio of 11:19;
The catalyst is prepared by adding buffer solution into N-cyanoethylaniline solution and ammonium metatungstate according to the mass ratio of 5:2, uniformly mixing, preserving heat for 30min under the water bath condition of 39 ℃, adding triphenylphosphine oxide with the mass fraction of 28% under the low pressure condition of 0.06MPa, and uniformly stirring for 60 min; the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the addition amount of the buffer solution is 3 times of the mass of the N-cyanoethylaniline solution.
Comparative example 1
Comparative example 1 differs from example 1 in that the ionic liquid microemulsion of comparative example 1 was free of added cetyltrimethylammonium bromide, the others being unchanged.
Comparative example 2
Comparative example 2 differs from example 1 in that comparative example 2 was free of catalyst and the others were unchanged.
Comparative example 3
Comparative example 3 differs from example 1 in that the catalyst of comparative example 3 was not added with ammonium metatungstate, and the others were unchanged.
Comparative example 4
Comparative example 4 differs from example 1 in that the catalyst of comparative example 4 was not added with triphenylphosphine oxide, the others being unchanged.
Comparative example 5
Comparative example 5 is different from example 1 in that the adsorbent of comparative example 5 is not subjected to modification treatment, and the others are unchanged.
Comparative example 6
Comparative example 6 is different from example 1 in that the adsorbent of comparative example 6 is modified by immersing the adsorbent in a schiff base solution for 85min at 45 c for 75min, the others being unchanged.
Comparative example 7
Comparative example 7 is different from example 1 in that no glycine was added to the modifier of the adsorbent of comparative example 7, and the other was unchanged.
The preparation method of the exhaust gas treatment conversion agent of the examples and the comparative examples comprises the following specific procedures: adding the modified adsorbent into the ionic liquid microemulsion for ultrasonic dispersion, dispersing for 40min at the ultrasonic frequency of 40KHz, adding the catalyst, pumping nitrogen for 4 times under the sealing condition, and drying to obtain the waste gas treatment conversion agent.
The waste gas treatment conversion agents for carbon disulfide prepared in the examples and the comparative examples are used for treating waste gas with the flow rate of 3000m 3/h and the carbon disulfide content of 900ppm, and the treatment process comprises the following steps:
Step 1: treating the waste gas containing carbon disulfide by a waste gas treatment conversion agent for 50min, and then treating the waste gas for 15min under the action of an electrostatic field output voltage of 270V and a current of 0.2mA to obtain treated gas;
Step 2: compressing the treated gas, condensing the treated gas by a condenser to obtain condensate, and carrying out specific gravity separation to obtain elemental sulfur.
The treatment results are shown in table 1, and the concentration of carbon disulfide treated in each example and comparative example was measured 5 times, and the desulfurization rate and conversion rate were averaged:
table 1 carbon disulfide waste gas treatment conversion
As can be seen from Table 1, the desulfurizing agent prepared by the invention has high desulfurizing conversion efficiency on carbon bisulfide, and the concentration of the treated waste gas is lower than 0.05ppm.
The invention also provides a comparative example of the treatment process;
Comparative example 8
Comparative example 8 is different from example 1 in that comparative example 8 does not add an electrostatic field, and others are unchanged.
Table 2 influence of the treatment process on the carbon disulphide conversion concentration
As can be seen from table 2, the desulfurization efficiency can be improved by treating the exhaust gas treatment conversion agent by the electrostatic field in the treatment process of the exhaust gas.
The exhaust gas treatment conversion agent prepared in example 1 was subjected to infrared test: using fourier infrared spectrometer, mixing the test sample with acetone according to the ratio of 4:100, heating (64 ℃) under stirring for reflux for 1.5 hours, precipitating and purifying by absolute ethyl alcohol, grinding and tabletting together with potassium bromide crystals, and testing the infrared absorption peak of a sample by using a transmission method, wherein the test result is shown in table 3;
TABLE 3 functional group IR spectrum ranges of exhaust gas treatment converters
| Functional group | Infrared spectral range/cm -1 | Annotating |
| Carboxylic acid anhydrides | 985-1200 | |
| 1740-1200 | ||
| Carbonyl group | 1110-1500 | O-H in COOH |
| 1590-1610 | ||
| Carboxyl group | 1130-1260 | |
| 1660-1740 | ||
| 3210-3240 | ||
| Lactone group | 1140-1355 | |
| 1670-1795 | ||
| 1000-1250 | ||
| Phenol group | 1165-1220 | C-OH (Telescopic vibration) |
| 2500-3250 | O-H | |
| Quinone radical | 1555-1685 | O-H |
| 1000-1300 | ||
| Ether group | 1085-1195 | C-O (Telescopic vibration) |
| 1580-1604 | C-O (Telescopic vibration) | |
| 2605-3010 | ||
| Amino group | 3315-3500 | N-H2 |
| Alkyl group | 2969-2850 | |
| 3283-3430 | ||
| Hydrogen bonding | 3600-3650 | O-H |
As is clear from Table 3, in the exhaust gas treatment conversion agent of the present invention, the content of active functional groups in the modified activated carbon was increased as compared with that in the conventional activated carbon.
The performance of the adsorbents of example 1 and comparative example 5 was tested, the test results are shown in table 4, and the BET test of the adsorbent of example 1 was performed, and the test results are shown in fig. 1 and 2.
TABLE 4 Performance parameters of adsorbents
| Test group | Example 1 | Comparative example 5 |
| Specific surface area (m 2/g) | 2456.27 | 210.36 |
| Aperture (nm) | 1-5 | 3-9 |
| Pore volume (cm 3/g) | 1.268 | 0.855 |
As is clear from the results shown in Table 4, FIG. 1 and FIG. 2, the specific surface area, pore diameter and pore diameter of the adsorbent of the present invention are all larger than those of comparative example 5, and the modification treatment of the adsorbent of the present invention is effective in improving the adsorption performance of the adsorbent.
In conclusion, the high-efficiency removal and conversion of the carbon disulfide in the waste gas are realized by combining the waste gas treatment conversion agent with the treatment process, elemental sulfur is formed, and the elemental sulfur is recovered by the desorption process, so that the purity of the obtained product is high; as can be seen from comparative example 1, ionic liquid and quaternary ammonium salt cationic liquid are selected to be compounded to form a microemulsion phase, and compared with single ionic liquid, the microemulsion phase can react with carbon disulfide more completely; as can be seen from comparative examples 2 to 3, the catalyst of the present invention is formulated with an amine liquid and a tungsten-based catalyst and then treated with an organophosphorus compound, and has a more directional catalytic effect than a single catalyst and no treatment; as can be seen from comparative examples 4-7, in the adsorbent modification of the invention, the adsorption reaction capacity of the adsorbent and the adsorption conversion capacity of carbon disulfide can be effectively improved by alkali liquor modification and multi-active group modifier modification; as can be seen from comparative example 8, in the treatment process of the present invention, the conversion agent is treated by the waste gas and then the low-voltage electrostatic field is superimposed, so that the carbon disulfide with low concentration in the second half of the reaction can be adsorbed and reacted into elemental sulfur.
Claims (6)
1. A method for preparing an exhaust gas treatment conversion agent for carbon disulfide, which is characterized by comprising the following steps: adding the modified adsorbent into the ionic liquid microemulsion for ultrasonic dispersion, adding a catalyst, and pumping nitrogen for 3-5 times under a sealing condition to obtain an exhaust gas treatment conversion agent;
The modified adsorbent is obtained by soaking the adsorbent in Schiff base solution with the volume multiple of 3-5 times of the adsorbent for 80-90min, adding modifier with the mass fraction of 8-14% of the adsorbent, uniformly mixing, and heating in an oil bath at 130-140 ℃ for 40-60min; wherein the adsorbent is one of active carbon, graphene, montmorillonite, kaolinite and zeolite molecular sieve;
The ionic liquid microemulsion is prepared by adding 1-butyl-3-methylimidazole hexafluorophosphate and cetyltrimethylammonium bromide with the mass ratio of 22-24:11-15 into water containing 30-50% of water-soluble castor oil with the mass ratio of 3-5:2, and stirring and uniformly mixing at the temperature of 50-70 ℃;
The catalyst is prepared by adding an N-cyanoethylaniline solution and ammonium metatungstate into a buffer solution according to the mass ratio of 4-6:1-3, uniformly mixing, preserving heat under the water bath condition, adding triphenylphosphine oxide with the mass fraction of 20-28% under the low pressure condition of 0.06-0.08MPa, and uniformly stirring and mixing for 60-80 min;
the modifier consists of glycine and sulfonated polyether-ether-ketone in the mass ratio of 11-15:17-19.
2. The method for preparing the conversion agent for treating the waste gas of the carbon disulfide, which is characterized by comprising the following components in parts by mass: 36-44 parts of modified adsorbent, 8-16 parts of ionic liquid microemulsion and 1.5-3.5 parts of catalyst.
3. The method for preparing the conversion agent for treating the waste gas of the carbon disulfide, which is disclosed in claim 1, wherein the buffer solution is tris (hydroxymethyl) aminomethane buffer solution, and the adding amount of the buffer solution is 2-3 times of the mass of the N-cyanoethylaniline solution.
4. The method for preparing an exhaust gas treatment conversion agent for carbon disulfide according to claim 1, wherein the soaking is performed at a temperature of 30-60 ℃ for 60-90min.
5. An exhaust gas treatment conversion agent for treating carbon disulphide obtainable by a process according to any one of claims 1 to 4;
The waste gas treatment conversion agent is used for waste gas treatment of carbon disulfide, and the treatment method comprises the following steps:
Step 1: treating the waste gas containing carbon disulfide by a waste gas treatment conversion agent for 40-60min, and then treating for 10-20min under the action of an electrostatic field to obtain treated gas;
Step 2: compressing the treated gas, condensing the treated gas by a condenser to obtain condensate, and carrying out specific gravity separation to obtain elemental sulfur.
6. The exhaust gas treatment conversion agent according to claim 5, wherein the electrostatic field has an output voltage of 250 to 300V and a current of 0.1 to 0.3mA.
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