CN105478136B - A kind of catalyst of cooperating with low-temperature plasma-catalytic degraded industrial organic exhaust gas and preparation method and application - Google Patents
A kind of catalyst of cooperating with low-temperature plasma-catalytic degraded industrial organic exhaust gas and preparation method and application Download PDFInfo
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- CN105478136B CN105478136B CN201510988931.1A CN201510988931A CN105478136B CN 105478136 B CN105478136 B CN 105478136B CN 201510988931 A CN201510988931 A CN 201510988931A CN 105478136 B CN105478136 B CN 105478136B
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- 239000003054 catalyst Substances 0.000 title claims abstract description 113
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000003426 co-catalyst Substances 0.000 claims abstract description 15
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 13
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 12
- 229910000314 transition metal oxide Inorganic materials 0.000 claims abstract description 12
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims abstract description 8
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000002440 industrial waste Substances 0.000 claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 230000001413 cellular effect Effects 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 150000004965 peroxy acids Chemical class 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 239000012855 volatile organic compound Substances 0.000 abstract description 14
- 239000002912 waste gas Substances 0.000 abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 54
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- 229910010271 silicon carbide Inorganic materials 0.000 description 19
- 239000006260 foam Substances 0.000 description 17
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 9
- 229910000428 cobalt oxide Inorganic materials 0.000 description 9
- 238000006731 degradation reaction Methods 0.000 description 9
- 239000011572 manganese Substances 0.000 description 9
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- 229910000420 cerium oxide Inorganic materials 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 8
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 8
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 7
- 238000001354 calcination Methods 0.000 description 7
- 238000007598 dipping method Methods 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910002451 CoOx Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 229910003978 SiClx Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910016978 MnOx Inorganic materials 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 3
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical group [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 3
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 3
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 3
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 3
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 3
- 229960004643 cupric oxide Drugs 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000480 nickel oxide Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241001466460 Alveolata Species 0.000 description 1
- 229910003320 CeOx Inorganic materials 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000005427 atmospheric aerosol Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
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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
- 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
- B01J23/63—Platinum group metals with rare earths or actinides
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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
- B01J23/38—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
- B01J23/38—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
- B01J23/66—Silver or gold
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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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth 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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
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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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
- B01J27/224—Silicon carbide
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- B01J35/56—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/40—Mixed oxides
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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 discloses catalyst of a kind of cooperating with low-temperature plasma-catalytic degraded industrial organic exhaust gas and preparation method and application, including carrier, main active component and co-catalysis composition；The carrier is SiC；The main active component is at least one of at least one of the mixture of at least one of noble metal and at least one of transition metal oxide, noble metal or transition metal oxide；Co-catalyst component is at least one of at least one of the mixture of at least one of rare-earth oxide and at least one of alkaline earth oxide, rare-earth oxide or alkaline earth oxide；Main active component accounts for the 0.1~5% of catalyst gross mass, and co-catalyst component accounts for the 0.1~5% of catalyst gross mass.Catalyst preparation in the present invention is simple, cheap, long lifespan, performance are good, and industrial VOCs waste gas can be removed with high efficiency under normal temperature by being combined with plasma, and ensure the discharge of low accessory substance.
Description
Technical field
The invention belongs to technical field of waste gas treatment, and in particular to a kind of cooperating with low-temperature plasma-catalytic degraded industry has
Catalyst of machine waste gas and preparation method and application.
Background technology
In recent years, there is extensive severe haze weather in the multiple cities in China, its essence is atmospheric aerosol concentration is too high,
And volatile organic contaminant (VOCs) is important predecessor.In addition, VOCs can also cause photochemical fog, depletion of the ozone layer,
The atmospheric issues such as global warming, and to the toxic effect of people and animals.And industrial source, such as organic chemical industry, petrochemical industry, coalification
Work, pharmacy, printing, spraying etc. are main emission sources, there is millions of tons of yield every year.
At present, handling the method for industrial volatile organic matter mainly has absorption, absorption, catalysis burning, photocatalysis etc., still
These conventional arts apply in general to handle high-concentration waste gas, and the problem of high high energy consumption, operating cost and secondary pollution be present.
Lower temperature plasma technology is a kind of new technology, it is considered to be handles VOCs effective ways, with efficiency high, energy consumption is low, ties
Structure is simple, cost is low, is adapted to the advantages that processing large-wind-volume low-concentration waste gas.But single lower temperature plasma technology effect has
Limit.Then more researchers are combined plasma with catalyst, and it, which acts synergistically, can be achieved VOCs deep oxidation, and
And caused small organic molecule, O during decomposition reaction3、NOx, the accessory substance such as aerosol.
Low temperature plasma couples with catalyst one-part form more to combine closely catalyst and electric discharge, wherein can strengthen
The ferroelectric media material of electric discharge has better performance, such as Mn, Co, Ag, and the big catalyst of specific surface area, is particularly carried in addition
Body such as Al2O3、TiO2, molecular sieve etc. increase VOCs residence time, improve the dispersiveness of catalyst.But often to VOCs's
Degraded is incomplete, has small organic molecule residual, in addition accessory substance O3、NOxDo not obtain efficiently using and decomposition, in tail gas
Content is still very big.
China Patent Publication No. is that CN 1451477 is disclosed《The foaming Raney nickel of purifying industrial waste gases and its preparation side
Method and application》, its carrier is that Foamed Nickel and component percentages are 40~80, and active component contains metal oxide and component
Percentage is 15~60, and catalyst performance is excellent, and can be realized at normal temperatures and pressures to industrial waste gas after plasma combination
Purified treatment, will not cause the resistance of reactor again increases.Simply whether unknown the solution of accessory substance problem is.
In summary, lower temperature plasma technology coupling one-part form situ catalytic effect is good, but accessory substance problem and VOCs
Depth degradation problem have it is to be solved.
The content of the invention
The invention provides catalyst of a kind of cooperating with low-temperature plasma-catalytic degraded industrial waste gas and preparation method thereof
With application, such a catalyst preparation is simple, cheap, long lifespan, performance are good, combined with plasma can with normal temperature efficiently
Rate removes industrial VOCs waste gas, and has ensured the discharge of low accessory substance.
A kind of catalyst of cooperating with low-temperature plasma-catalytic degraded industrial waste gas, including carrier, main active component and help
Catalyst component；The carrier is SiC；The main active component be at least one of noble metal with transition metal oxide at least
At least one of a kind of mixture, noble metal or at least one of transition metal oxide；Co-catalyst component is dilute
In the mixture of at least one of soil metal oxide and at least one of alkaline earth oxide, rare-earth oxide extremely
A kind of at least one of few or alkaline earth oxide；Main active component accounts for the 0.1~5% of catalyst gross mass, co-catalysis
Agent composition accounts for the 0.1~5% of catalyst gross mass.
Manganese oxide catalyst is in O3Under atmosphere, VOCs degraded can be effectively facilitated, serves synchronous degradation O3And VOCs
Effect, while metal oxide degraded O3When, in addition to manganese oxide, iron, cobalt, the oxide of nickel also have good degraded O3
Effect；And the rare-earth oxide (such as cerium oxide and lanthana) of electronics is rich in for surface, it is easily in absorption O3's
During, there is provided an electronics is to O3Form O3 -Group, the group can greatly promote VOCs degraded.The present invention using manganese,
The characteristic of the metal oxides such as iron, cobalt, nickel, cerium, lanthanum, using suitable carrier and load above-mentioned one or more oxides and obtain
To catalyst, synchronous degradation O can be reached under lower temperature conditions3With VOCs effect.
The present invention has high specific resistance using carborundum as carrier, SiC, and its value is more than 1 × 107Ω cm, this causes
The valence electron of material does not allow easy to migrate, the not easy conductive in the high electric field of region of discharge；Other SiC is between metallic conductor and absolutely
Semiconductor between edge body, there is special nature, easily produce electron hole and interacted with active material, it has by electricity
Son acid centre, the organic compound for having pi-electron can be attracted, particularly when and it is metal-doped after can band and can rank all occur
Change, activation energy may be caused to change；Its other dielectric constant can be mutated under certain electric-field intensity, strengthen electric-field intensity,
Also the clearance to pollutant is increased.
The present invention can not only decompose O using suitable catalyst activity component and carrier3And NOxSolve the problems, such as accessory substance,
The further degradation of organic substances that acts synergistically can also be utilized.The present invention is by MnOx、CoOxSiC carriers are loaded to Deng composite reactive component
On, efficient, the ideal type catalyst of no coupling product is prepared.
It is further preferred that when the main active component is noble metal, it accounts for 0.1~1wt% of total catalyst weight；
When main active component is transition metal oxide, it accounts for 1~5wt% of total catalyst weight；When your gold main active component is
During the mixture of category and transition metal oxide, noble metal accounts for 0.2~0.4wt% of total catalyst weight, transiting metal oxidation
Thing accounts for 2.5~3.5wt% of total catalyst weight；Co-catalyst accounts for 1~4wt% of total catalyst weight.
It is further preferred that when the main active component is noble metal, its account for total catalyst weight 0.3~
0.6wt%；When main active component is transiting metal oxidation, it accounts for 4~5wt% of total catalyst weight；Co-catalyst, which accounts for, urges
1~4wt% of agent gross weight.
On main active component, most preferably, the main active component is the mixing of noble metal and transition metal oxide
During thing, noble metal accounts for the 0.3wt% of total catalyst weight, and transition metal oxide accounts for the 2.7wt% of total catalyst weight.
Preferably, the carrier S iC is foam-like or cellular.
Further preferably, 5~20mm of thickness of foam-like SiC carriers, 15~25ppi of aperture, further, aperture is
20ppi。
Preferably, the noble metal is Ag, Pt or Pd.
Preferably, the transition metal oxide is Mn, Co, Ni, Ti, Cr, Cu or Fe oxide.
Preferably, the rare-earth oxide is La or Ce oxide.It can effectively adsorb O3And electronics is provided,
Make O3 -Group is further degraded VOCs, while decomposes O3。
Preferably, the alkaline earth oxide is Ca or Ba oxide.
Further, the main active component and co-catalyst component select from following combination：
(1) the main active component is the mixture of Mn oxide and cobalt/cobalt oxide, and co-catalyst component is cerium oxide, manganese
Oxide accounts for the 1% of total catalyst weight, and cobalt/cobalt oxide accounts for the 3% of total catalyst weight, and cerium oxide accounts for total catalyst weight
1%.The catalyst being prepared using the combination is used to handle organic exhaust gas in plasma-catalytic reaction, the removal to toluene
Rate is up to 98%, O3Remain 4ppm, NOxRemain 0ppm.
(2) the main active component is the mixture of nickel oxide and cobalt/cobalt oxide, and co-catalyst component is lanthana, nickel
Oxide accounts for the 2% of total catalyst weight, and cobalt/cobalt oxide accounts for the 2% of total catalyst weight, and lanthana accounts for total catalyst weight
1%.The catalyst being prepared using the combination is used to handle organic exhaust gas, toluene, dimethylbenzene in plasma-catalytic reaction
Removal efficiency be respectively 99%, 97%, O3Remain 12ppm, NOxRemain 0ppm.
(3) the main active component is the mixture of Cu oxide and cobalt/cobalt oxide, and co-catalyst component is calcium oxide, copper
Oxide accounts for the 1% of total catalyst weight, and cobalt/cobalt oxide accounts for the 3% of total catalyst weight, and calcium oxide accounts for total catalyst weight
1%.The catalyst being prepared using the combination is used to handle organic exhaust gas, ethyl acetate, third in plasma-catalytic reaction
The removal efficiency of ketone is respectively 99%, 96%, O3Remain 5ppm, NOxRemain 0ppm.
(4) the main active component is the mixture of Mn oxide and Cu oxide, and co-catalyst component is barium monoxide, manganese
Oxide accounts for the 2% of total catalyst weight, and Cu oxide accounts for the 3% of total catalyst weight, and barium monoxide accounts for total catalyst weight
1%.The catalyst being prepared using the combination is used to handle organic exhaust gas, toluene, acetic acid second in plasma-catalytic reaction
The removal efficiency of ester is 96%, 99%, O3Remain 3ppm, NOxRemain 0ppm.
(5) the main active component is silver, and co-catalyst component is cerium oxide, and silver accounts for the 0.6% of total catalyst weight, oxygen
Change cerium and account for the 3.4% of total catalyst weight.The catalyst being prepared using the combination is used in plasma-catalytic reaction locate
Organic exhaust gas is managed, the degradation rate of toluene is 98%, O3Remain 10ppm, NOxRemain 0ppm.
(6) the main active component is platinum, and co-catalyst component is cerium oxide, and platinum accounts for the 0.3% of total catalyst weight, oxygen
Change cerium and account for the 3.7% of total catalyst weight.The catalyst being prepared using the combination is used in plasma-catalytic reaction locate
Organic exhaust gas is managed, toluene, the removal efficiency of ethyl acetate are 96%, 99%, O3Remain 3ppm, NOxRemain 0ppm.
(7) the main active component is palladium and Mn oxide, and co-catalyst component is lanthana, and palladium accounts for total catalyst weight
0.3, Mn oxide accounts for the 2.7% of total catalyst weight, and lanthana accounts for the 1% of total catalyst weight.Prepared using the combination
Obtained catalyst is used in plasma-catalytic reaction handle organic exhaust gas, and toluene, the removal efficiency of methanol are 98%, 99%,
O3Remain 2ppm, NOxRemain 0ppm.
The present invention also provides a kind of preparation method of the catalyst, comprises the following steps：
(1) SiC carriers are dried after peracid steeps, alkali steeps and washes successively；The forerunner of main active component is weighed by proportioning
The presoma of body and co-catalysis composition is configured to the aqueous solution；
(2) by the aqueous solution of the carrier impregnation after drying to presoma, 0.5~1.5h of ultrasonic reaction；
(3) dried after ultrasound terminates, be then calcined 3.5~4.5h at 450~550 DEG C again, obtain the catalyst.
Further, dried in step (1) at 100 DEG C；The volume of precursor water solution is slightly larger than carrier in step (2)
Volume, the ultrasonic reaction time is preferably 1h；12h or so is dried in step (3) at 100 DEG C to drying, the preferred 4h of roasting time.
The present invention also provides a kind of application of catalyst in cooperating with low-temperature plasma-catalytic degraded industrial waste gas, will
It is described to be positioned in the region of discharge of plasma catalytic reactor.
The catalyst of shaping is positioned in the region of discharge of reactor；And foam or honeycomb SiC support types is selected to urge
Agent.When corona discharge occurs, catalyst is in situ to produce active particle, and organic matter when corona region and catalyst by being divided
Solution.
Compared with prior art, the present invention has the advantages that：
1. preferably the loaded catalyst using SiC as carrier, carrier and active component effectively cooperate with, strengthen corona and put
Electricity so that the energy density of plasma increases, and is improved to the degradation rate of pollutant, also improves energy efficiency；
2. preferable SiC loads composite type metallic oxide, such as MnOxAnd CoOxIt is compound, under normal temperature, it can both improve pollution
The degradation rate of thing, O can also be removed3、NOxDeng accessory substance, solve the problems, such as that one-part form accessory substance is high；
3. co-catalyst, utilize the O of rare earth metal3Trapping ability and alkaline-earth metal strengthen O as electronic auxiliary3Collaboration
Degradation capability and improve the dispersiveness of catalyst main active component on a catalyst；
4. the catalyst of foam or alveolate texture solves the problems, such as that reactor resistance is big, and raw material of the present invention is low
It is honest and clean, prepare simply, be easy to industrial applications.
Embodiment
Using present embodiment processing organic exhaust gas method be：In the presence of air draught, bubbling bottle, blending tank,
Organic exhaust gas is simulated with organic matters such as toluene, dimethylbenzene, ethyl acetate, concentration is 10~200ppm, total flow 2L/min；Foam
Type catalyst is placed between the positive and negative electrode of corona discharge, connects plasma high voltage power supply, corona occurs between electrode pair
Electric discharge, the organic matters such as certain anti-electric-corona discharge, toluene also occur on catalyst by between electrode pair, by high energy electron,
O3, the pretreatment of OH isoreactivities particle into small molecule organic pollution, then during by Catalytic Layer, through acting synergistically by advanced treating
Into CO2And H2O；And Catalytic Layer can be to O3There is decomposition, active oxygen decomposable asymmetric choice net organic matter caused by decomposition；Other catalyst
Aerosol can be trapped and degraded in the original location；Content through gas-chromatography test residual organic matter.
Embodiment 1
Catalyst preparation：Catalyst using dipping calcination method prepare, with 50% manganese nitrate aqueous solution, cobalt nitrate, cerous nitrate,
Foam silicon carbon is raw material, molten according to the proportional arrangement that Mn oxide, cobalt oxide and cerium oxide load capacity are 1%, 3%, 1%
Liquid, after being dried by excessive impregnated carbon SiClx, at a temperature of 450 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtain catalyst.
Using processing：Catalyst is thickness 20mm, the 1%MnO of aperture 20ppi foam silicon carbons loadx3%CoOx1%
CeOx/ SiC catalyst.Initial vapor concentration is：[toluene]=100ppm, using air as carrier gas, flow 2L/min.Electric discharge electricity
It is room temperature to press as 18KV positive high voltages, reaction temperature, and the removal efficiency of toluene is 98%, O3Remain 4ppm, NOxRemain 0ppm.
Embodiment 2
Catalyst preparation：Catalyst is prepared using dipping calcination method, with nickel nitrate, cobalt nitrate, lanthanum nitrate, foam silicon carbon
For raw material, according to the proportional arrangement solution that nickel oxide, cobalt oxide and lanthana load capacity are 2%, 2% and 1%, pass through excessive leaching
After the drying of stain carborundum, at a temperature of 450 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtain catalyst.
Using processing：Catalyst is thickness 20mm, the 2%NiO of aperture 20ppi foam silicon carbons loadx2%CoOx1%
LaOx/ SiC catalyst.Initial mixing gas concentration is：[toluene]=50ppm, [dimethylbenzene]=50ppm, using air as carrier gas,
Flow is 2L/min.Discharge voltage is 18KV positive high voltages, and reaction temperature is room temperature, and toluene, the removal efficiency of dimethylbenzene are respectively
99%th, 97%, O3Remain 12ppm, NOxRemain 0ppm.
Embodiment 3
Catalyst preparation：Catalyst is prepared using dipping calcination method, with copper nitrate, cobalt nitrate, calcium nitrate, foam silicon carbon
For raw material, according to the proportional arrangement solution that cupric oxide, cobalt oxide and calcium oxide load capacity are 1%, 3% and 1%, pass through excessive leaching
After the drying of stain carborundum, at a temperature of 450 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtain catalyst.
Using processing：Catalyst is thickness 20mm, the 1%CuO of aperture 20ppi foam silicon carbons loadx3%CoOx1%
CaOx/ SiC catalyst.Initial mixing gas concentration is：[ethyl acetate]=50ppm, [acetone]=50ppm, using air as load
Gas, flow 2L/min.Discharge voltage is 18KV positive high voltages, and reaction temperature is room temperature, and ethyl acetate, the removal efficiency of acetone are distinguished
For 99%, 96%, O3Remain 5ppm, NOxRemain 0ppm.
Embodiment 4
Catalyst preparation：Catalyst using dipping calcination method prepare, with 50% manganese nitrate aqueous solution, copper nitrate, barium nitrate,
Foam silicon carbon is raw material, molten according to the proportional arrangement that Mn oxide, cupric oxide and barium monoxide load capacity are 2%, 3% and 1%
Liquid, after being dried by excessive impregnated carbon SiClx, at a temperature of 600 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtain catalyst.
Using processing：Catalyst is thickness 20mm, the 2%MnO of aperture 20ppi foam silicon carbons loadx3%CuOx1%
BaOx/ SiC catalyst.Initial mixing gas concentration is：[toluene]=50ppm, [ethyl acetate]=50ppm, using air as load
Gas, flow 2L/min.Discharge voltage is 18KV positive high voltages, and reaction temperature is room temperature, and toluene, the removal efficiency of ethyl acetate are
96%th, 99%, O3Remain 3ppm, NOxRemain 0ppm.
Embodiment 5
Catalyst preparation：Catalyst is prepared using dipping calcination method, using silver nitrate, cerous nitrate, foam silicon carbon as raw material,
According to silver and cerium oxide load capacity be 0.6% and 3.4% proportional arrangement solution, by excessive impregnated carbon SiClx dry after,
At a temperature of 450 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtains catalyst.
Using processing：Catalyst is thickness 20mm, the 0.6%Ag3.4%CeO of aperture 20ppi foam silicon carbons loadx/
SiC catalyst.Initial vapor concentration is：[toluene]=100ppm, using air as carrier gas, flow 2L/min.Discharge voltage is
18KV positive high voltages, reaction temperature are room temperature, and the degradation rate of toluene is 98%, O3Remain 10ppm, NOxRemain 0ppm.
Embodiment 6
Catalyst preparation：Catalyst is prepared using dipping calcination method, using chloroplatinic acid, cerous nitrate, foam silicon carbon as raw material,
According to the proportional arrangement solution that platinum and cerium oxide load capacity are 0.3% and 3.7%, after being dried by excessive impregnated carbon SiClx,
At a temperature of 500 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtains catalyst.
Using processing：Catalyst is thickness 20mm, the 0.3%Pt3.7%CeO of aperture 20ppi foam silicon carbons loadx/
SiC catalyst.Initial vapor concentration is：[ethyl acetate]=100ppm, using air as carrier gas, flow 2L/min.Electric discharge electricity
It is room temperature to press as 18KV positive high voltages, reaction temperature, and the removal efficiency of ethyl acetate is 99%, O3Remain 6ppm, NOxRemain 0ppm.
Embodiment 7
Catalyst preparation：Catalyst is prepared using dipping calcination method, with palladium bichloride, 50% manganese nitrate aqueous solution, lanthanum nitrate
Foam silicon carbon is raw material, molten according to the proportional arrangement that palladium, Mn oxide and lanthana load capacity are 0.3%, 2.7% and 1%
Liquid, after being dried by excessive impregnated carbon SiClx, at a temperature of 500 DEG C, it is placed in Muffle furnace and calcines 4h, that is, obtain catalyst.
Using processing：Catalyst is thickness 20mm, the 0.3%Pd2.7% of aperture 20ppi foam silicon carbons load
MnOx1%LaOx/ SiC catalyst.Initial mixing gas concentration is：[toluene]=50ppm, [methanol]=50ppm, using air as
Carrier gas, flow 2L/min.Discharge voltage is 18KV positive high voltages, and reaction temperature is room temperature, and toluene, the removal efficiency of methanol are
98%th, 99%, O3Remain 2ppm, NOxRemain 0ppm.
Claims (3)
1. a kind of catalyst of cooperating with low-temperature plasma-catalytic degraded industrial waste gas, including carrier, main active component and helping is urged
Chemical conversion point；Characterized in that, the carrier is SiC, the carrier S iC is foam-like or cellular, the thickness of foam-like SiC carriers
Spend 5~20mm, 15~25ppi of aperture；The main active component be at least one of noble metal with transition metal oxide extremely
At least one of a kind of few mixture, noble metal or at least one of transition metal oxide；Co-catalyst component is
In the mixture of at least one of rare-earth oxide and at least one of alkaline earth oxide, rare-earth oxide
At least one of at least one or alkaline earth oxide；Main active component accounts for the 0.1~5% of catalyst gross mass, helps and urges
Agent composition accounts for the 0.1~5% of catalyst gross mass；The noble metal is Ag, Pt or Pd；The transition metal oxide is
Mn, Co, Ni, Ti, Cr, Cu or Fe oxide；The rare-earth oxide is La or Ce oxide；The alkaline-earth metal
Oxide is Ca or Ba oxide.
2. a kind of preparation method of catalyst as claimed in claim 1, it is characterised in that comprise the following steps：
(1) SiC carriers are dried after peracid steeps, alkali steeps and washes successively；By proportioning weigh main active component presoma and
The presoma of co-catalysis composition is configured to the aqueous solution；
(2) by the aqueous solution of the carrier impregnation after drying to presoma, 0.5~1.5h of ultrasonic reaction；
(3) dried after ultrasound terminates, 3.5~4.5h is then calcined at 450~550 DEG C, obtains the catalyst.
3. a kind of catalyst as claimed in claim 1 is in the application of cooperating with low-temperature plasma-catalytic degraded industrial waste gas, its spy
Sign is, the catalyst is positioned in the region of discharge of plasma catalytic reactor.
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| CN106492811A (en) * | 2016-08-31 | 2017-03-15 | 广东俐峰环保科技有限公司 | A kind of catalyst of transition metal oxide and its application |
| CN106693955A (en) * | 2016-12-22 | 2017-05-24 | 北京工业大学 | Double-metal integral type plasma catalyst as well as preparation method and application of double-metal integral type plasma catalyst |
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| CN107321148A (en) * | 2017-07-14 | 2017-11-07 | 四川大学 | A kind of VOCs for removing low concentration big flow method and its modified catalyst |
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| CN108940304B (en) * | 2018-07-27 | 2021-01-19 | 华南理工大学 | Mn/Ce/Cu-based low-temperature plasma catalyst and preparation and application thereof |
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| CN109395765A (en) * | 2018-10-09 | 2019-03-01 | 南京工业大学 | A kind of preparation and its application of the catalyst suitable for low-temperature plasma processing organic exhaust gas |
| CN109173663A (en) * | 2018-10-17 | 2019-01-11 | 四川凯沃环保科技有限公司 | A kind of off-gas oxidizing processing method |
| CN110465301B (en) * | 2019-08-23 | 2023-04-07 | 四川省达科特能源科技股份有限公司 | Active carbon catalyst and preparation method and application thereof |
| CN113385184B (en) * | 2021-05-24 | 2022-12-13 | 浙江工商大学 | Mn-Co-La composite catalyst for catalyzing and degrading VOCs (volatile organic compounds) by synergistic discharge plasma and preparation method and application thereof |
| CN113398941B (en) * | 2021-05-31 | 2022-08-16 | 杭州电子科技大学 | Preparation process of high-efficiency carbon smoke removal catalyst and product 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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