CN106669668A - Catalyst for ammonia odor gas purification as well as preparation method and application of catalyst - Google Patents
Catalyst for ammonia odor gas purification as well as preparation method and application of catalyst Download PDFInfo
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- CN106669668A CN106669668A CN201710035247.0A CN201710035247A CN106669668A CN 106669668 A CN106669668 A CN 106669668A CN 201710035247 A CN201710035247 A CN 201710035247A CN 106669668 A CN106669668 A CN 106669668A
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- Prior art keywords
- catalyst
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- 239000003054 catalyst Substances 0.000 title claims abstract description 66
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000746 purification Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 31
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 22
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 22
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 21
- 238000001354 calcination Methods 0.000 claims abstract description 17
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 9
- 238000004898 kneading Methods 0.000 claims abstract description 6
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 6
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 6
- 238000000975 co-precipitation Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract 3
- 239000000243 solution Substances 0.000 claims description 34
- 150000001412 amines Chemical class 0.000 claims description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000011572 manganese Substances 0.000 claims description 14
- 229910001868 water Inorganic materials 0.000 claims description 14
- 238000013329 compounding Methods 0.000 claims description 13
- 239000011259 mixed solution Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910001593 boehmite Inorganic materials 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 9
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical group [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 5
- 239000011656 manganese carbonate Substances 0.000 claims description 5
- 235000006748 manganese carbonate Nutrition 0.000 claims description 5
- 229940093474 manganese carbonate Drugs 0.000 claims description 5
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 claims description 5
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 206010013786 Dry skin Diseases 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical group [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims description 4
- 238000001802 infusion Methods 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 230000001476 alcoholic effect Effects 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 241001494479 Pecora Species 0.000 claims description 2
- FRHBOQMZUOWXQL-UHFFFAOYSA-L ammonium ferric citrate Chemical compound [NH4+].[Fe+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FRHBOQMZUOWXQL-UHFFFAOYSA-L 0.000 claims description 2
- 229960000892 attapulgite Drugs 0.000 claims description 2
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 2
- GHLITDDQOMIBFS-UHFFFAOYSA-H cerium(3+);tricarbonate Chemical compound [Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GHLITDDQOMIBFS-UHFFFAOYSA-H 0.000 claims description 2
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 229960004642 ferric ammonium citrate Drugs 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 239000004313 iron ammonium citrate Substances 0.000 claims description 2
- 235000000011 iron ammonium citrate Nutrition 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229910000349 titanium oxysulfate Inorganic materials 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims 1
- 244000275012 Sesbania cannabina Species 0.000 claims 1
- 235000012211 aluminium silicate Nutrition 0.000 claims 1
- 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 1
- 239000006193 liquid solution Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 229910052684 Cerium Inorganic materials 0.000 abstract description 3
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 229910052707 ruthenium Inorganic materials 0.000 abstract 1
- 238000003980 solgel method Methods 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 241000219782 Sesbania Species 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000035943 smell Effects 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 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
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229960004756 ethanol Drugs 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical compound CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- CHUYYOSIZBKMJD-UHFFFAOYSA-N acetic acid;gold Chemical compound [Au].CC(O)=O CHUYYOSIZBKMJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- OYJSZRRJQJAOFK-UHFFFAOYSA-N palladium ruthenium Chemical compound [Ru].[Pd] OYJSZRRJQJAOFK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- BIXNGBXQRRXPLM-UHFFFAOYSA-K ruthenium(3+);trichloride;hydrate Chemical compound O.Cl[Ru](Cl)Cl BIXNGBXQRRXPLM-UHFFFAOYSA-K 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/648—Vanadium, niobium or tantalum or polonium
- B01J23/6482—Vanadium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/652—Chromium, molybdenum or tungsten
- B01J23/6527—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6562—Manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8906—Iron and noble metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8986—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with manganese, technetium or rhenium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Abstract
The invention provides a catalyst for ammonia odor gas purification as well as a preparation method and an application of the catalyst and solves the problems that a catalyst has high ignition temperature and low activity, cannot generate N2, CO2 and H2O with high selectivity, and produces secondary pollution in the prior art. The active component of the catalyst is any one or more of Pd, Pt, Au and Ru, and the content is 0.01wt%-5wt% based on the single metal element; the auxiliary agent is a binary or multicomponent composite oxide of Ti, V, W, Mn, Fe and Ce, and the content is 1wt%-40wt% based on the oxide; the remaining component is a catalyst carrier Al2O3. After an aid is supported on a catalyst carrier with a mixing kneading method, a co-current co-precipitation method or a sol-gel method, drying and calcination are performed, and a modified carrier is obtained; the active component is supported on the modified carrier with an impregnation method, drying and calcination are performed, and the catalyst is obtained.
Description
Technical field
The invention belongs to field of gas purification, specially a kind of catalyst for amine odor purification and preparation method thereof
And application.
Background technology
Nitrogenous volatile organic matter (predominantly amine gas) is widely present in rubbish as one of the main component of foul smell
In all kinds of waste gas in the fields such as landfill gas, biofermentation, food, sewage disposal, leather chemical industry.Because its is volatile and zest
Abnormal smells from the patient is strong, very easily to environment.Clear stipulaties have all been done in country and place to the discharge standard of amine gas.Mesh
The method of pre-treatment amine foul smell includes absorption method, chemical oxidization method, bioanalysises, plasma method, combustion method and catalysis burning
Method etc.., mainly using activated carbon, active hargil etc. as adsorbent, removal efficiency is high, but it is little, easy to there is adsorption capacity for absorption method
Secondary pollution is caused, the shortcomings of changing adsorbent and fixed-end forces is needed；Chemical oxidization method removal efficiency is high, but needs using high
The strong oxidizers such as potassium manganate, efficiency is low, is also easy to produce secondary pollution；Bioanalysises process is simple, operating cost are low, secondary pollution is little,
But more harsh, time of staying requirement length is required place, operating condition, and equipment volume is big, purification speed is slow；Plasma method
Process is simple, easy to maintenance, energy consumption is low, more more cost-effective than traditional method, but treating capacity is less, and power supply is had high demands, easily
Produce nitrogen oxides (NOx) and ozone (O3) etc. secondary pollution；Conventional heat combustion method is high due to ignition temperature, is also easy to produce NOx,
Cause secondary pollution.Catalytic combustion technology has treatment effeciency high, and ignition temperature is low, suppresses nitrogen over oxidation to generate NOx
The advantages of, have a high potential.
Patent CN105107503A discloses a kind of loaded catalyst for amine waste gas burning, using spherical alumina
Aluminum loads copper sulfate, is obtained after drying calcining, can efficiently remove dimethylamine, trimethylamine.But the catalyst reaction temperatures compared with
Height, may produce NO in course of reactionx, cause secondary pollution.
Therefore, initiation temperature is researched and developed low, activity height can catalytic amine type organic high selectivity generation N2、CO2And H2The height of O
Performance amine selective catalyst combustion catalyst, becomes those skilled in the art's problem demanding prompt solution.
The content of the invention
The invention provides a kind of catalyst for amine odor purification, for catalysis burning removing amine Organic substance；
The catalyst light-off temperature is low, and activity is high, can catalytic amine type organic high selectivity generation N2、CO2And H2O, significantly inhibits NOx
Produce, it is to avoid secondary pollution.
The invention provides a kind of preparation method of the catalyst for amine odor purification.
Present invention also offers a kind of application of the catalyst for amine odor purification.
The technical solution used in the present invention is as follows：
The invention provides a kind of catalyst for amine odor purification, including catalyst carrier, active component and help
Agent, the gross mass percentage composition sum of catalyst is 100%；Active component is any one or more in Pd, Pt, Au, Ru, living
The content of property component accounts for 0.01~5wt% of catalyst in terms of metal simple-substance；Auxiliary agent for Ti, V, W, Mn, Fe, Ce binary or
Multicomponent composite oxide, the content of auxiliary agent accounts for 1~40wt% of catalyst in terms of oxide；Remaining component is catalyst load
Body, catalyst carrier is Al2O3。
Preferably, the presoma of active component is nitrate, chloride or the acetate of active component.
Preferably, in auxiliary agent, the presoma of V is ammonium metavanadate, and the presoma of Ti is the nano oxidized of 25~50nm of particle diameter
Titanium powder, titanyl sulfate or tetrabutyl titanate, the presoma of W is ammonium metatungstate, and the presoma of Mn is manganese nitrate or manganese carbonate, Fe
Presoma be ferric nitrate or ferric ammonium citrate, the presoma of Ce is cerous nitrate or cerous carbonate.
Preferably, Al2O3Any one in activated alumina, boehmite, the aluminum nitrate of presoma.
Present invention also offers a kind of preparation method of the catalyst for amine odor purification, the method includes following step
Suddenly：
Step 1：Auxiliary agent is carried on by catalysis using a kind of method in kneading method, co-precipitation method or sol-gal process
After agent carrier, in 110~120 DEG C of 4~12h of drying, 300~600 DEG C of 3~5h of calcining, modified support is obtained；
Step 2：Active component is carried on step 1 gained modified support using infusion process, in 110~120 DEG C of dryings 4
After~12h, then at 300~600 DEG C of 3~5h of calcining, catalyst is obtained.
Further, in step 1, add molding during auxiliary agent is carried on into catalyst carrier using kneading method and help
Agent, the method is comprised the following steps：It is molten that one or more in the presoma of selection auxiliary agent V, W, Mn, Fe, Ce is configured to auxiliary agent
Liquid；Take and add compounding agent solution after nano oxidized titanium powder or the one kind in manganese carbonate, boehmite, shaping assistant mix homogeneously
In, mix homogeneously mediates extruded moulding；Shaping assistant is any one in sesbania powder, attapulgite, sheep Montmorillonitum, Kaolin
Kind, addition is 1~3wt% of catalyst.
Further, in step 1, auxiliary agent is carried on by catalyst carrier using co-precipitation method, is comprised the following steps：
Choose in the presoma of auxiliary agent Ti, V, W, Mn, Fe, Ce any two or it is various, and aluminum nitrate is configured to mixed aqueous solution；Match somebody with somebody
Sodium carbonate, potassium carbonate or ammonia spirit are put, as precipitant solution；Using simultaneously stream mode while Deca mixed aqueous solution and precipitation
Agent solution in the container for filling water, generate precipitation, during be kept stirring for, control pH=9~10, into change 4~18h；Gained
Precipitate with deionized water is washed 3~5 times, sucking filtration.
Further, in step 1, auxiliary agent is carried on by catalyst carrier using sol-gal process, is comprised the following steps：Take
One or more in one kind, the presoma of auxiliary agent V, W, Mn, Fe, Ce in citric acid or oxalic acid, aluminum nitrate be added to quality
Than for 1：In 1 alcoholic solvent, mixed solution A is obtained, butyl titanate is dissolved in into dehydrated alcohol and obtains mixed solution B, will be mixed
Close solution A to be slowly dropped in mixed solution B, stirring is not stopped under room temperature, then evaporate solution in 60~90 DEG C of water-bath, formed
Gel.
Further, infusion process is comprised the following steps in step 2：In choosing active component Pd, Pt, the presoma of Au, Ru
One or more, be configured to mixed aqueous solution or alcoholic solution, obtain active component precursor solution；Using equi-volume impregnating,
Step 1 gained modified support is impregnated into 8~12h in active component precursor solution, active component is carried on into step 1 gained
On modified support.
The invention provides the application of amine odor purification catalyst, it is characterised in that：Using fixed bed reactors, air speed
For 1000~20000h-1, reaction temperature is 150~350 DEG C, and methylamine content is 100~10000mg/Nm in amine foul smell3, amine
Ammonia concentration is 100~10000mg/Nm in class foul smell3。
Compared with prior art, beneficial effects of the present invention：
Using catalyst of the present invention, amine Organic substance can be effectively removed, catalytic amine type organic high selectivity generates N2、
CO2And H2O, significantly inhibits NOxProduce, it is to avoid secondary pollution.Initiation temperature of the present invention is low, and activity is high, and preparation method is simple.
Specific embodiment
The foregoing invention content of the present invention is described in further detail with reference to specific embodiment.But should not be by
This scope for being interpreted as above-mentioned theme of the invention is only limitted to following embodiments.Raw material derives from commercially available in embodiment.
Embodiment 1-7 is catalyst carrier preparation.
Embodiment 1：
Weigh the ammonium metavanadate 1.28g 60mL that add water and be configured to compounding agent solution.Weigh boehmite 138g, titanium dioxide powder
9g, after sesbania powder 2g mix homogeneously, in adding compounding agent solution, mix homogeneously mediates extruded moulding, 110~120 DEG C of dryings of Jing
8h, 300 DEG C of calcining 4h, is obtained the VTiO of V, Ti oxide total content 10%x/Al2O3Carrier.
Embodiment 2：
Weigh ammonium metavanadate 1.28g, the ammonium metatungstate 12g 60mL that add water are configured to compounding agent solution.Weigh boehmite
92g, titanium dioxide powder 29g, after sesbania powder 2g mix homogeneously, in adding compounding agent solution, mix homogeneously mediates extruded moulding, Jing
110~120 DEG C are dried 8h, 500 DEG C of calcining 4h, and the VWTiO of V, W, Ti oxide total content 40% is obtainedx/Al2O3Carrier.
Embodiment 3：
Weigh the cerous nitrate 25.2g 60mL that add water and be configured to compounding agent solution.Boehmite 107g, manganese carbonate 29.1g are weighed,
After sesbania powder 2g mix homogeneously, in adding compounding agent solution, mix homogeneously mediates extruded moulding, and 110~120 DEG C of Jing is dried 8h,
500 DEG C of calcining 4h, are obtained the MnCeO of Mn, Ce oxide total content 30%x/Al2O3Carrier.
Embodiment 4：
Weigh cerous nitrate 12.6g, the manganese nitrate 45.3g 40mL that add water are configured to compounding agent solution.Boehmite 107g is weighed,
Titanium dioxide powder 15g, after sesbania powder 2g mix homogeneously, in adding compounding agent solution, mix homogeneously, kneading extruded moulding, Jing 110~
120 DEG C are dried 8h, 500 DEG C of calcining 4h, and the MnCeTiO of Mn, Ce oxide total content 30% is obtainedx/Al2O3Carrier.
Embodiment 5：
Weigh the ferric nitrate 10.1g 60mL that add water and be configured to compounding agent solution.Weigh boehmite 122g, titanium dioxide powder
18g, after sesbania powder 2g mix homogeneously, in adding compounding agent solution, mix homogeneously mediates extruded moulding, 110~120 DEG C of dryings of Jing
8h, 400 DEG C of calcining 4h, is obtained the FeTiO of Fe, Ti oxide total content 20%x/Al2O3Carrier.
Embodiment 6：
Manganese nitrate 45.3g is weighed, cerous nitrate 12.6g, ferric nitrate 25.3g, aluminum nitrate 589g are dissolved in 1000ml water to be mixed
Solution is closed, the sodium carbonate liquor of another configuration 0.35mol/L delays mixed solution and sodium carbonate liquor under room temperature, stirring condition
Slow addition is pre-loaded with the container of 500mL water, while adjusting pH=9~10.Stir in air at room temperature after completion of dropping
Change 10h, filtration washing, repetitive operation 3~5 times, 110~120 DEG C of Jing is dried 12h, 500 DEG C of calcining 3h, prepared Fe, Mn,
The FeMnCeO of Ce oxides total content 20%x/Al2O3Carrier.
Embodiment 7：
Configuration quality ratio is 1:1 water-ethanol mixed solvent, weigh ferric nitrate 5g, manganese nitrate 4.5g, aluminum nitrate 114g,
Citric acid 62g is dissolved in 250ml mixed solvents and obtains solution A, 98ml butyl titanates is dissolved in 200ml ethanol and obtains solution
B, solution A is slowly dropped in solution B, and stirring is not stopped under room temperature, and solution is then evaporated in 60 DEG C of water-bath, forms gel,
Again 110~120 DEG C of Jing is dried 12h, 500 DEG C of calcining 3h, and the FeMnTiO of Fe, Mn, Ti oxide total content 25% is obtainedx/Al2O3
Carrier.
Embodiment 8-11 is catalyst preparation and performance test.
Embodiment 8：
Weigh six hydration chloroplatinic acid 0.267g and add water and be configured to 100ml aqueous solutions, 10ml platinum acid chloride solutions are taken respectively, altogether
7 parts, per part adds 90ml water to obtain chloroplatinic acid diluent, and the carrier immersion chloroplatinic acid for respectively obtaining 100g embodiments 1-7 is dilute
Release and keep in liquid 8h, then 110~120 DEG C are dried 12h, 600 DEG C of calcining 4h, respectively obtain catalyst Pt/VTiOx/Al2O3、
Pt/VWTiOx/Al2O3、Pt/MnCeOx/Al2O3、Pt/MnCeTiOx/Al2O3、Pt/FeTiOx/Al2O3、Pt/FeMnCeOx/
Al2O3、Pt/FeMnTiOx/Al2O3, Pt load capacity is 0.01%.
Above-mentioned catalyst is placed in fixed bed reactors respectively, volume space velocity 1000h-1, 150 DEG C of reaction temperature, front three
Amine concentration 100mg/Nm3, ammonia concentration 100mg/Nm3, remaining is air.The results are shown in Table 1.
Catalyst removal methylamine performance described in the embodiment 8 of table 1
Note：N.d. represent and be not detected by.
As shown in Table 1, using catalyst of the present invention, amine Organic substance can be effectively removed, initiation temperature of the present invention is low, Jing
The air crossed after the de- amine of catalyst of the present invention is processed, methylamine concentration is less than 0.5mg/Nm3And generation NOxConcentration is less than 10mg/Nm3。
Embodiment 9：
Palladium 0.21g is weighed, acetic acid gold 0.095g is dissolved in 100ml ethanol, mixed solution is obtained, by 99.85g embodiments
The 6 carrier immersion mixed solutions for obtaining keep 10h, and 12h, 450 DEG C of calcining 4h are then dried in 110~120 DEG C, obtain catalyst
Pd-Au/FeMnTiOx/Al2O3, PdAu load capacity is 0.15%.The catalyst is placed in fixed bed reactors, volume space velocity
20000h-1, 250 DEG C of reaction temperature, trimethylamine 1000mg/Nm3, ammonia concentration 1000mg/Nm3, remaining is air, three after reaction
Methylamine concentration is less than 0.1mg/Nm3And generation NOxConcentration is less than 10mg/Nm3。
Embodiment 10：
Chloride hydrate ruthenium 1.3g is weighed, Palladous chloride. 1.05g is dissolved in the dilute hydrochloric acid that 100ml concentration is 1%, must mix molten
Liquid, in the carrier immersion mixed solution that 99g embodiments 5 are obtained 12h is kept, and then 110~120 DEG C are dried 12h, and 400 DEG C are forged
4h is burnt, catalyst Pd-Ru/FeTiO is obtainedx/Al2O3, PdAu load capacity is 1%.The catalyst is placed in into fixed bed reactors
It is interior, volume space velocity 10000h-1, 350 DEG C of reaction temperature, trimethylamine 5000mg/Nm3, ammonia concentration 5000mg/Nm3, remaining is sky
Gas, methylamine concentration is less than 0.1mg/Nm after reaction3And generation NOxConcentration is less than 10mg/Nm3。
Embodiment 11：
Palladous chloride. 8.33g is weighed, obtained solution in 100ml dilute hydrochloric acid solutions, the carrier that 95g embodiments 5 are obtained is added
12h is kept in immersion mixed solution, then 110~120 DEG C are dried 12h, 400 DEG C of calcining 4h, obtain catalyst Pd/MnCeOx/
Al2O3, Pd load capacity is 5%.The catalyst is placed in fixed bed reactors, volume space velocity 15000h-1, reaction temperature 280
DEG C, methylamine concentration is 10000ppm, ammonia concentration 10000ppm, and methylamine concentration is less than 0.1mg/Nm after reaction3And generation NOxIt is dense
Degree is less than 10mg/Nm3。
To sum up, catalyst light-off temperature of the present invention is low, and activity is high, can catalytic amine type organic high selectivity generation N2、CO2
And H2O, significantly inhibits NOxProduce, it is to avoid secondary pollution.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit the protection model of the present invention
Enclose, as long as the body design thought and the change or polishing of having no essential meaning mentally made in the present invention, it is solved
Technical problem still with this with new consistent, should be included within protection scope of the present invention.
Claims (10)
1. a kind of catalyst for amine odor purification, it is characterised in that：The catalyst includes catalyst carrier, activearm
Divide and auxiliary agent, the gross mass percentage composition sum of the catalyst is 100%；
The active component is any one or more in Pd, Pt, Au, Ru, and its content accounts for the catalyst in terms of metal simple-substance
0.01~5wt%；
The auxiliary agent is the binary or multicomponent composite oxide of Ti, V, W, Mn, Fe, Ce, and its content accounts for described urging in terms of oxide
1~40wt% of agent；
Remaining component is the catalyst carrier, and the catalyst carrier is Al2O3。
2. a kind of catalyst for amine odor purification according to claim 1, it is characterised in that：The active component
Presoma be the active component nitrate, chloride or acetate.
3. a kind of catalyst for amine odor purification according to claim 1, it is characterised in that：In the auxiliary agent,
The presoma of the V is ammonium metavanadate, and the presoma of the Ti is nano oxidized titanium powder, the titanyl sulfate of 25~50nm of particle diameter
Or tetrabutyl titanate, the presoma of the W is ammonium metatungstate, and the presoma of the Mn is manganese nitrate or manganese carbonate, the Fe's
Presoma is ferric nitrate or ferric ammonium citrate, and the presoma of the Ce is cerous nitrate or cerous carbonate.
4. a kind of catalyst for amine odor purification according to claim 1, it is characterised in that：The Al2O3Before
Drive any one of body in activated alumina, boehmite, aluminum nitrate.
5. the preparation method of a kind of catalyst for amine odor purification according to any one of claim 1-4, it is special
Levy and be：The method is comprised the following steps：
Step 1：The auxiliary agent is carried on using a kind of method in kneading method, co-precipitation method or sol-gal process described
After catalyst carrier, in 110~120 DEG C of 4~12h of drying, 300~600 DEG C of 3~5h of calcining, modified support is obtained；
Step 2：The active component is carried on step 1 gained modified support using infusion process, in 110~120 DEG C of dryings 4
After~12h, then at 300~600 DEG C of 3~5h of calcining, the catalyst is obtained.
6. preparation method according to claim 5, it is characterised in that：In the step 1, will be described using the kneading method
Auxiliary agent adds shaping assistant during being carried on the catalyst carrier, the method is comprised the following steps：Help described in choosing
One or more in the presoma of agent V, W, Mn, Fe, Ce is configured to compounding agent solution；Take the nano oxidized titanium powder or described
Add in the compounding agent solution after a kind of, described boehmite, the shaping assistant mix homogeneously in manganese carbonate, mixing is equal
It is even, mediate extruded moulding；Any one of the shaping assistant in sesbania powder, attapulgite, sheep Montmorillonitum, Kaolin, plus
Enter 1~3wt% that amount is the catalyst.
7. preparation method according to claim 5, it is characterised in that：In the step 1, using the co-precipitation method
The auxiliary agent is carried on into the catalyst carrier, is comprised the following steps：Choose the forerunner of described auxiliary agent Ti, V, W, Mn, Fe, Ce
In body any two or it is various, and the aluminum nitrate is configured to mixed aqueous solution；Configuration sodium carbonate, potassium carbonate or ammonia are molten
Liquid, as precipitant solution；Using and stream mode simultaneously mixed aqueous solution described in Deca and the precipitant solution in filling water
Container in, generate precipitation, during be kept stirring for, control pH=9~10, into change 4~18h；Gained precipitate with deionized water
Washing 3~5 times, sucking filtration.
8. preparation method according to claim 4, it is characterised in that：In the step 1, will using the sol-gal process
The auxiliary agent is carried on the catalyst carrier, comprises the following steps：Take citric acid or a kind of, the described auxiliary agent V in oxalic acid, W,
One or more in the presoma of Mn, Fe, Ce, the aluminum nitrate be added to mass ratio for 1：In 1 alcoholic solvent, it is obtained mixed
Solution A is closed, butyl titanate is dissolved in into dehydrated alcohol and is obtained mixed solution B, the mixed solution A is slowly dropped into into the mixing molten
In liquid B, stirring is not stopped under room temperature, solution is then evaporated in 60~90 DEG C of water-bath, form gel.
9. preparation method according to claim 4, it is characterised in that：Infusion process described in the step 2 includes following step
Suddenly：One or more in the presoma of active component Pd, Pt, Au, Ru is chosen, mixed aqueous solution is configured to or alcohol is molten
Liquid, obtains active component precursor solution；Using equi-volume impregnating, by step 1 gained modified support before the active component
Drive and impregnate in liquid solution 8~12h, the active component is carried on step 1 gained modified support.
10. according to right 1 amine odor purification catalyst application, it is characterised in that：Using fixed bed reactors, air speed
For 1000~20000h-1, reaction temperature is 150~350 DEG C, and methylamine content is 100~10000mg/ in the amine foul smell
Nm3, ammonia concentration is 100~10000mg/Nm in the amine foul smell3。
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| CN109847746A (en) * | 2019-03-11 | 2019-06-07 | 浙江师范大学 | A kind of catalyst and preparation method thereof for itrogenous organic substance purification |
| CN110681398A (en) * | 2019-10-25 | 2020-01-14 | 西南化工研究设计院有限公司 | Noble metal catalyst for purifying carbon dioxide gas and preparation and application thereof |
| CN110935470A (en) * | 2019-11-25 | 2020-03-31 | 北京化工大学 | Preparation method of exhaust gas purification catalyst |
| CN111215048A (en) * | 2020-03-02 | 2020-06-02 | 中自环保科技股份有限公司 | Ozone purification catalyst and preparation method and application thereof |
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| CN113996291A (en) * | 2021-11-09 | 2022-02-01 | 康纳新型材料(杭州)有限公司 | Low-temperature HVOCs catalytic combustion catalyst, and preparation method and application thereof |
| CN114515586A (en) * | 2022-02-25 | 2022-05-20 | 金华铂锐催化科技有限公司 | Catalyst for purifying volatile organic compounds and preparation method thereof |
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| CN107983346A (en) * | 2017-12-04 | 2018-05-04 | 合肥神舟催化净化器股份有限公司 | A kind of preparation method of noble metal-base metal mixed catalyst |
| CN109847746A (en) * | 2019-03-11 | 2019-06-07 | 浙江师范大学 | A kind of catalyst and preparation method thereof for itrogenous organic substance purification |
| CN110681398A (en) * | 2019-10-25 | 2020-01-14 | 西南化工研究设计院有限公司 | Noble metal catalyst for purifying carbon dioxide gas and preparation and application thereof |
| CN110935470A (en) * | 2019-11-25 | 2020-03-31 | 北京化工大学 | Preparation method of exhaust gas purification catalyst |
| CN111215048A (en) * | 2020-03-02 | 2020-06-02 | 中自环保科技股份有限公司 | Ozone purification catalyst and preparation method and application thereof |
| CN111617735A (en) * | 2020-05-27 | 2020-09-04 | 青岛华世洁环保科技有限公司 | Amine odor removal material |
| CN111617735B (en) * | 2020-05-27 | 2022-07-05 | 青岛华世洁环保科技有限公司 | Amine odor removal material |
| CN113996291A (en) * | 2021-11-09 | 2022-02-01 | 康纳新型材料(杭州)有限公司 | Low-temperature HVOCs catalytic combustion catalyst, and preparation method and application thereof |
| CN114515586A (en) * | 2022-02-25 | 2022-05-20 | 金华铂锐催化科技有限公司 | Catalyst for purifying volatile organic compounds and preparation method thereof |
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