KR900014030A - H₂s 방출이 적은 자동차 배기 촉매 및 그의 제조방법 - Google Patents
H₂s 방출이 적은 자동차 배기 촉매 및 그의 제조방법 Download PDFInfo
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- KR900014030A KR900014030A KR1019900003114A KR900003114A KR900014030A KR 900014030 A KR900014030 A KR 900014030A KR 1019900003114 A KR1019900003114 A KR 1019900003114A KR 900003114 A KR900003114 A KR 900003114A KR 900014030 A KR900014030 A KR 900014030A
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- Prior art keywords
- catalyst
- support
- oxide
- platinum group
- stabilizer
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- 239000003054 catalyst Substances 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 238000000034 method Methods 0.000 claims 17
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 13
- 229910052751 metal Inorganic materials 0.000 claims 12
- 239000002184 metal Substances 0.000 claims 12
- 239000003381 stabilizer Substances 0.000 claims 12
- 239000000243 solution Substances 0.000 claims 7
- 239000007789 gas Substances 0.000 claims 6
- 229910052783 alkali metal Inorganic materials 0.000 claims 5
- 150000001340 alkali metals Chemical class 0.000 claims 5
- 238000001035 drying Methods 0.000 claims 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims 5
- 150000002910 rare earth metals Chemical class 0.000 claims 5
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims 4
- 238000010438 heat treatment Methods 0.000 claims 4
- 238000005470 impregnation Methods 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 4
- 239000002245 particle Substances 0.000 claims 4
- 239000012266 salt solution Substances 0.000 claims 4
- 150000003839 salts Chemical class 0.000 claims 4
- -1 BiO 3 Inorganic materials 0.000 claims 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 3
- 239000002253 acid Substances 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 2
- 238000007605 air drying Methods 0.000 claims 2
- 150000001339 alkali metal compounds Chemical class 0.000 claims 2
- 230000003197 catalytic effect Effects 0.000 claims 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 2
- 239000000843 powder Substances 0.000 claims 2
- 239000002243 precursor Substances 0.000 claims 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims 2
- 239000010948 rhodium Substances 0.000 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- 239000011734 sodium Substances 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 229910018068 Li 2 O Inorganic materials 0.000 claims 1
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 1
- 229910018879 Pt—Pd Inorganic materials 0.000 claims 1
- 229910004298 SiO 2 Inorganic materials 0.000 claims 1
- 229910006404 SnO 2 Inorganic materials 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims 1
- AQBOUNVXZQRXNP-UHFFFAOYSA-L azane;dichloropalladium Chemical compound N.N.N.N.Cl[Pd]Cl AQBOUNVXZQRXNP-UHFFFAOYSA-L 0.000 claims 1
- AMTORDAVJQIXCO-UHFFFAOYSA-N azane;platinum;thiocyanic acid Chemical compound N.[Pt].SC#N AMTORDAVJQIXCO-UHFFFAOYSA-N 0.000 claims 1
- 239000011324 bead Substances 0.000 claims 1
- 229910001593 boehmite Inorganic materials 0.000 claims 1
- 229910052792 caesium Inorganic materials 0.000 claims 1
- 238000013270 controlled release Methods 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims 1
- 229910052741 iridium Inorganic materials 0.000 claims 1
- 229910001510 metal chloride Inorganic materials 0.000 claims 1
- 229910052763 palladium Inorganic materials 0.000 claims 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims 1
- 239000008188 pellet Substances 0.000 claims 1
- 229910052697 platinum Inorganic materials 0.000 claims 1
- 150000003112 potassium compounds Chemical class 0.000 claims 1
- QPINXQCQOKBINJ-UHFFFAOYSA-K potassium;platinum(2+);trichloride Chemical compound [Cl-].[Cl-].[Cl-].[K+].[Pt+2] QPINXQCQOKBINJ-UHFFFAOYSA-K 0.000 claims 1
- 229910052703 rhodium Inorganic materials 0.000 claims 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 claims 1
- 229910052701 rubidium Inorganic materials 0.000 claims 1
- QFJIELFEXWAVLU-UHFFFAOYSA-H tetrachloroplatinum(2+) dichloride Chemical compound Cl[Pt](Cl)(Cl)(Cl)(Cl)Cl QFJIELFEXWAVLU-UHFFFAOYSA-H 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- DANYXEHCMQHDNX-UHFFFAOYSA-K trichloroiridium Chemical compound Cl[Ir](Cl)Cl DANYXEHCMQHDNX-UHFFFAOYSA-K 0.000 claims 1
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- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
-
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- 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
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- 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
- B01J23/58—Platinum group metals with alkali- or alkaline earth metals
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- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/185—Phosphorus; Compounds thereof with iron group metals or platinum group metals
- B01J27/1856—Phosphorus; Compounds thereof with iron group metals or platinum group metals with platinum group metals
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예 1 및 2의 촉매에 대한 H2S 방출 시험 결과를 도시한 도면.
제2도는 실시예 3 및 4의 촉매에 대한 H2S 방출 시험 결과를 도시한 도면임.
Claims (29)
- 비회토류 산화물 안정화제 약 0.5 내지 20 중량%, 촉진제로서의 알칼리 금속 산화물 약 0.5 내지 약 5 중량% 및 Pt, Pd, Ir, Rh 또는 이들의 혼합물;Pt- Pd, Pt-Rb 또는 Pd-Rh 2성분 혼합물;또 Pt-Pd-Rb 3 성분 혼합물로부터 선정된 1이상의 백금족 금속 유효 촉매량이 침착된 성형된 내화 산화물 입자 또는 내화 산화물 분말 지지체를 포함하는, 산화새륨이 거의 없으며, H2S 방출이 적은 방출 제어용 3윈 촉매로서 사용하기에 적합한 촉매.
- 제1항에 있어서, 내화 산화물이 산화알루미늄인 촉매.
- 제1항에 있어서, 내화 산화물 지지체의 B. E. T. 표면적이 50내지 250㎡/g인 촉매.
- 제1항에 있어서, 알칼리금속 산화물이 Li2O, Na2O, K2O, Cs2O 및 이들의 혼합물로부터 선정되는 촉매.
- 제1항에 있어서, 알칼리금속 산화물이 촉매의 중량을 기준으로 하여 최소한 약 0.5%내지 2%의 양으로 존재하는 촉매.
- 제1항에 있어서, 상기 비희토류 산화물 안정화재가 ZrO2, MgO, CaO, Sno, CaO, Y2O3, TiO2, ZnO, B2O3, P2O5, SnO2, BiO3, SiO2및 이들의 혼합물로부터 선정되는 촉매.
- 제6항에 있어서, 상기 비회토류 산화물 안정화제가 ZrO2인 촉매.
- 제6항에 있어서, 상기 비회토류 산화물 안정화제가 촉매 중량에 대해 약 1 내지 5%의 양으로 존재하는 촉매.
- 제1항에 있어서, 상기 성형된 입자 지지체가 비이드, 펠릿, 압축물, 정재 및 구로부터 선정되는 촉매.
- 제1항에 있어서, 상기 성형된 입자 지지체의 메쉬 크기가 4내지 10U. S. 메쉬인 촉매.
- 제1항에 있어서, 상기 분말 지지체의 평균 입경이 100 미크론 이하인 촉매.
- 제1항에 있어서, 상기 비희토류 산화물 안정화제가 ZrO2이고 상기 알칼리 금속 산화물이 K2O인 촉매.
- 제1항에 있어서, 상기촉매의 B. E. T. 표면적이 50 내지 250㎡/g인 촉매.
- (A) (1) 비회토류 안정화제 염;또는 (2) 비희토류 안정화제 염과 알칼리 금속 화합물을 함유하는 용액으로 전이 형태의 내화 산화물 지지체, 바람직하게는 산화알루미늄 지지체를 함침시키는 단계; (B) 함침된 지지체를 100 내지 200℃에서 임의적으로 건조시키는 단계; (C) 함침된 지지체를 40 내지 1100℃에서 가열하여 최소한 비희토류 안정화제 염을 분해시킴으로써 산화물에 의해 안정화된 지지체를 수득하는 단계; (D) (1) 1이상의 백금족 금속과 가용성 알칼리 금속 염 용액을 함유하는 용액으로 비희토류 안정화제 산화물에 의해 함침된 단계 (C)로부터의 지지체를 함침시키거나 또는 (2)의 1이상의 백금 그룹 금속을 함유하는 용액으로 비희토류 안정화제 산화물에 의해 함침된 단계 (C)로부터의 지지체를 함침시키거나 또는 (3) (a) 1이상의 백금 그룹 금속을 함유하는 용액으로 비희토류 안정화제 산화물에 의해 함침된 단계 (C)로부터의 지지체를 함침시키고 (b) 주위 온도에서 0 내지 4시간동안, 또 약 100내지 150℃에서 촉매를 건조시켜 함침 후의 촉매를 건조시키고 또 (C)가용성 알칼리 금속 염 용액으로 단계 (D) (3) (b) 로부터의 함침된 지지체를 더 함침시키거나 또는 (4) (a) 1이상의 백금족 금속과 가용성 알칼리 금속 염 용액을 함유하는 용액으로 비회토류 안정화제 산화물에 의해 함침된 단계 (C)로부터의 지지체를 함침시키고, (b) 주위 온도에서 0 내지 4시간동안, 또 약 100 내지 150℃에서 촉매를 공기 건조시켜 촉매 금속을 함유하는 용액으로 함침시킨 후의 촉매를 건조시키고 또 (c)의 1이상의 백금족 금속의 용액으로 단계 (D) (4) (b)로부터의 함침된 지지체를 더 함침시킴으로써 1이상의 촉매 백금족 금속 및 임의적으로 1이상의 알칼리 금속 촉진제를 가하는 단계 (E)주위온도에서 0 내지 4시간동안, 또 약 100내지 150℃에서 촉매를 공기 건조시켜 단계(D)에서의 함침 후 촉매를 건조시키는 단계 또 (F) 단계 (D)에서 백금족 금속을 함유하는 촉매를 약 300° 내지 650℃에서 활성화시키는 단계 또 (G) 임의적으로는 (1) 가용성 알칼리 금속 염 용액으로 단계 (F)로부터의 활성화된 촉매를 더 함침시키고 (2) 주위 온도에서 0 내지 4시간동안, 또 약 100내지 150℃에서 촉매를 공기 건조시켜 함침 후의 촉매를 건조시키며, 또 (3) 임의적으로는 300 내지 650℃의 공기 중에서 단계 (G) (2)로부터의 건조된 촉매를 더 활성화시키는 단계를 포함하는 H2S 방출이 적은 방출 제어용 3윈 촉매로서 사용하기에 적합한 촉매를 제조하는 방법.
- 제14항에 있어서, 단계 (C)에서 약 400 내지 1100℃에서 가열하여 지지체를 열적으로 안정화시키는 방법.
- 제15항에 있어서, 지지체가 선구 물질로서 슈도베마이트를 갖는 알루미나인 경우, 단계 (C)에서 약 800 내지 1100℃에서 가열하여 지지체를 열적으로 안정화시키는 방법.
- 제15항에 있어서, 지지체가 선구 물질로서 베마이트를 갖는 알루미나인 경우, 단계 (C)에서 약 400 내지 700℃에서 가열하여 지지체를 열적으로 안정화시키는 방법.
- 제14항에 있어서, 단계 (F)에서 수소의 존재 하에 활성화시키는 방법.
- 제14항에 있어서, 단계 (D)에서 백금족 금속이 백금족 금속의 술파이토 착물, 클로로백금산, 염화 백금칼륨, 티오시안산백금 암모늄, 수산화테라아민 백금, 백금족 금속 염화물, 산화물, 황화물, 아질산염 및 질산염, 염화 테트라아민 백금, 염화 테트라아민 팔라듐, 염화팔라듐 나트륨, 염화로듐 헥사아민 및 염화 이리듐 헥사아민으로부터 선정된 수용성 백금족 금속 화합물의 형태로 제공되는 방법.
- 제19항에 있어서, 백금족 금속이 슬파이토 착물 형태로 제공되는 방법.
- 제14항에 있어서, 내화 산화물이 알루미나인 방법.
- 제14항에 있어서, 비회토류 안정하게 염이 지르코늄 염인 방법.
- 제22항에 있어서, 알칼리 금속 화합물이 칼륨 화합물인 방법.
- 제14항의 방법에 의해 제조된 촉매.
- 제22항의 방법에 의해 제조된 촉매.
- 제23항의 방법에 의해 제조된 촉매.
- 제1항에 따른 촉매 상으로 배기 가스를 통과시키는 것을 포함하는 H2S 방출이 감소하도록 배기 가스를 처리하는 방법.
- 제7항에 따른 촉매 상으로 배기 가스를 통과시키는 것을 포함하는 H2S 방출이 감소하도록 배기 가스를 처리하는 방법.
- 제12항에 따른 촉매 상으로 배기 가스를 통과시키는 것을 포함하는 H2S 방출이 감소하도록 배기 가스를 처리하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/322,444 | 1989-03-13 | ||
| US07/322,444 US4977129A (en) | 1989-03-13 | 1989-03-13 | Auto exhaust catalyst composition having low H2 S emissions and method of making the catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR900014030A true KR900014030A (ko) | 1990-10-22 |
Family
ID=23254921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019900003114A KR900014030A (ko) | 1989-03-13 | 1990-03-09 | H₂s 방출이 적은 자동차 배기 촉매 및 그의 제조방법 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4977129A (ko) |
| EP (1) | EP0387611A1 (ko) |
| JP (1) | JPH02280835A (ko) |
| KR (1) | KR900014030A (ko) |
| ZA (1) | ZA901477B (ko) |
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-
1989
- 1989-03-13 US US07/322,444 patent/US4977129A/en not_active Expired - Lifetime
-
1990
- 1990-02-27 ZA ZA901477A patent/ZA901477B/xx unknown
- 1990-03-01 EP EP90103938A patent/EP0387611A1/en not_active Withdrawn
- 1990-03-09 JP JP2056778A patent/JPH02280835A/ja active Pending
- 1990-03-09 KR KR1019900003114A patent/KR900014030A/ko not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02280835A (ja) | 1990-11-16 |
| ZA901477B (en) | 1990-12-28 |
| US4977129A (en) | 1990-12-11 |
| EP0387611A1 (en) | 1990-09-19 |
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