KR970020182A - 고 내열성 촉매담체 - Google Patents
고 내열성 촉매담체 Download PDFInfo
- Publication number
- KR970020182A KR970020182A KR1019960049859A KR19960049859A KR970020182A KR 970020182 A KR970020182 A KR 970020182A KR 1019960049859 A KR1019960049859 A KR 1019960049859A KR 19960049859 A KR19960049859 A KR 19960049859A KR 970020182 A KR970020182 A KR 970020182A
- Authority
- KR
- South Korea
- Prior art keywords
- nox storage
- prevented
- high heat
- heat resistant
- catalyst carrier
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—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
- 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
- B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/91—NOx-storage component incorporated in the catalyst
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
본 발명의 목적은 NOx 흡장재를 고분산 담지시킴과 동시에, NOx 흡장재의 비산을 방지하며, 또한 내유황 피독성을 향상시키는 것으로서, (i) NOx 흡장재의 산화물과, (ii) Al2O3와, (iii) TiO2, ZrO2및 SiO2로부터 선택되는 적어도 한 종류의 비정질의 복합산화물로 이루어진다. (iii) 성분은 산성질이고, 이것들의 적어도 한 종류가 고분산으로 복합화되어 있기 때문에, SOx의 NOx 흡장원소로의 접근이 방지되어 유황피독이 방지됨과 동시에, NOx 흡장원소의 담체로의 결합력이 강하게 되어 고온시의 비산이 방지된다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (1)
- (i) 알칼리금속, 알칼리 토류금속 및 희토류 원소에서 선택되는 NOx 흡장원소의 산화물과, (ii) 알루미나(Al2O3)와, (iii) 티타니아(TiO2), 질코니아(ZrO2) 및 실리카(SiO2)로부터 선택되는 한 종류의 비정질 복합산화물로 이루어는 것을 특징으로 하는 고 내열성 촉매담체.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28299695A JP3861303B2 (ja) | 1995-10-31 | 1995-10-31 | 排ガス浄化用触媒 |
JP95-282996 | 1995-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970020182A true KR970020182A (ko) | 1997-05-28 |
KR100218204B1 KR100218204B1 (ko) | 1999-09-01 |
Family
ID=17659870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960049859A KR100218204B1 (ko) | 1995-10-31 | 1996-10-30 | 고 내열성 촉매담체 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6083868A (ko) |
EP (1) | EP0771584B1 (ko) |
JP (1) | JP3861303B2 (ko) |
KR (1) | KR100218204B1 (ko) |
AU (1) | AU692118B2 (ko) |
DE (1) | DE69623905T2 (ko) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6348430B1 (en) | 1997-06-20 | 2002-02-19 | Degussa Ag | Exhaust gas treatment catalyst for internal combustion engines with two catalytically active layers on a carrier structure |
DE19726322A1 (de) * | 1997-06-20 | 1998-12-24 | Degussa | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
GB9713428D0 (en) | 1997-06-26 | 1997-08-27 | Johnson Matthey Plc | Improvements in emissions control |
DE19735770C1 (de) * | 1997-08-18 | 1999-05-27 | Bayer Ag | Verfahren zur Herstellung von Diarylcarbonaten |
JP3741303B2 (ja) * | 1997-12-08 | 2006-02-01 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
JP3388255B2 (ja) * | 1998-06-03 | 2003-03-17 | トヨタ自動車株式会社 | 排ガス浄化用触媒及びその製造方法 |
EP0970747A3 (en) * | 1998-07-08 | 2000-07-19 | Toyota Jidosha Kabushiki Kaisha | Process for producing titanium-aluminum composite oxides and process for producing a catalyst containing same |
US6350421B1 (en) * | 1998-08-24 | 2002-02-26 | Dmc2 Degussa Metals Catalysts Cerdec Ag | Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom |
US6143272A (en) * | 1998-12-18 | 2000-11-07 | Ford Global Technologies, Inc. | Sol-gel processed metal-zirconia materials |
FR2793161B1 (fr) * | 1999-05-07 | 2001-10-12 | Renault | Dispositif d'epuration des gaz d'echappement pour moteur a combustion interne |
JP4123644B2 (ja) * | 1999-06-22 | 2008-07-23 | トヨタ自動車株式会社 | 排ガス浄化触媒 |
GB0022786D0 (en) | 2000-09-16 | 2000-11-01 | Johnson Matthey Plc | NOx-Trap composition |
GB0028198D0 (en) * | 2000-11-20 | 2001-01-03 | Johnson Matthey Plc | High temperature nox-trap component |
US6866834B2 (en) * | 2001-03-12 | 2005-03-15 | Nissan Motor Co., Ltd. | NOx reduction catalyst and NOx reduction system |
GB0115729D0 (en) * | 2001-06-28 | 2001-08-22 | Univ Surrey | Doped alumina catalysts |
FR2827796B1 (fr) * | 2001-07-25 | 2004-08-20 | Inst Francais Du Petrole | Materiau pour l'elimination des oxydes d'azote avec structure en feuillets |
US6756338B2 (en) * | 2001-09-19 | 2004-06-29 | Johnson Matthey Public Limited Company | Lean NOx trap/conversion catalyst |
US20040102315A1 (en) * | 2002-11-27 | 2004-05-27 | Bailie Jillian Elaine | Reforming catalyst |
JP4165419B2 (ja) * | 2004-03-09 | 2008-10-15 | トヨタ自動車株式会社 | 金属酸化物粒子及び排ガス浄化触媒の製造方法 |
US7989387B2 (en) * | 2004-04-27 | 2011-08-02 | Toyota Jidosha Kabushiki Kaisha | Process for producing metal oxide particle and exhaust gas purifying catalyst |
JP4165443B2 (ja) * | 2004-04-27 | 2008-10-15 | トヨタ自動車株式会社 | 金属酸化物粒子の製造方法、及び排ガス浄化触媒 |
JP5019019B2 (ja) * | 2006-01-31 | 2012-09-05 | 株式会社豊田中央研究所 | 排ガス浄化用触媒担体、それを用いた排ガス浄化用触媒及び排ガス浄化方法 |
US20100075842A1 (en) * | 2006-11-29 | 2010-03-25 | Hyun-Sik Han | Potassium oxide-incorporated alumina catalysts with enhanced storage capacities of nitrogen oxide and a producing method therefor |
JP2008289971A (ja) * | 2007-05-23 | 2008-12-04 | Toyota Motor Corp | コアシェル構造体及びその製造方法並びに当該コアシェル構造体を含む排ガス浄化用触媒 |
JP2011083685A (ja) * | 2009-10-14 | 2011-04-28 | Jx Nippon Oil & Energy Corp | 水素製造用改質触媒及びその製造方法、並びに該触媒を用いた水素製造方法 |
JP5576420B2 (ja) * | 2012-03-21 | 2014-08-20 | トヨタ自動車株式会社 | 排ガス浄化触媒 |
JP7361679B2 (ja) * | 2017-10-24 | 2023-10-16 | 住友化学株式会社 | アルミナ材料 |
JP2021515737A (ja) * | 2018-02-15 | 2021-06-24 | 住友化学株式会社 | 無機酸化物 |
US20210213426A1 (en) * | 2018-02-15 | 2021-07-15 | Sumitomo Chemical Company, Limited | Inorganic oxide |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US4053556A (en) * | 1971-06-16 | 1977-10-11 | Johnson, Matthey & Co., Limited | Catalysis |
JPS497185A (ko) * | 1972-05-11 | 1974-01-22 | ||
US4220559A (en) * | 1978-02-14 | 1980-09-02 | Engelhard Minerals & Chemicals Corporation | High temperature-stable catalyst composition |
US4771028A (en) * | 1985-08-30 | 1988-09-13 | Catalysts And Chemicals Inc. | Heat resistant composition and method of producing the same |
US4902664A (en) * | 1987-08-13 | 1990-02-20 | Engelhard Corporation | Thermally stabilized catalysts containing alumina and methods of making the same |
JPH0644999B2 (ja) * | 1988-04-30 | 1994-06-15 | 株式会社豊田中央研究所 | 排気ガス浄化用触媒 |
JP2771321B2 (ja) * | 1990-11-09 | 1998-07-02 | 日本碍子株式会社 | 排気ガス浄化用触媒組成物、排気ガス浄化用触媒及びその製造方法 |
JP2773428B2 (ja) * | 1990-11-28 | 1998-07-09 | トヨタ自動車株式会社 | 排気ガス浄化方法 |
CA2064977C (en) * | 1991-04-05 | 1998-09-22 | Eiichi Shiraishi | Catalyst for purifying exhaust gas |
US5210062A (en) * | 1991-08-26 | 1993-05-11 | Ford Motor Company | Aluminum oxide catalyst supports from alumina sols |
JPH05168860A (ja) * | 1991-12-26 | 1993-07-02 | Toyota Motor Corp | 排気ガス浄化方法 |
US5212130A (en) * | 1992-03-09 | 1993-05-18 | Corning Incorporated | High surface area washcoated substrate and method for producing same |
JP3328318B2 (ja) * | 1992-05-22 | 2002-09-24 | トヨタ自動車株式会社 | 排気ガスの浄化方法 |
JP3328322B2 (ja) * | 1992-07-13 | 2002-09-24 | トヨタ自動車株式会社 | 排気ガスの浄化方法 |
US5389589A (en) * | 1992-12-22 | 1995-02-14 | Allied-Signal Inc. | Barium-containing alumina |
EP0613714B1 (en) * | 1993-01-11 | 2001-07-04 | Toyota Jidosha Kabushiki Kaisha | Process for purifying exhaust gases |
JP3551472B2 (ja) * | 1993-07-13 | 2004-08-04 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
JP4098835B2 (ja) * | 1993-12-07 | 2008-06-11 | トヨタ自動車株式会社 | 排気ガス浄化用触媒 |
JP3371531B2 (ja) * | 1994-04-20 | 2003-01-27 | 株式会社豊田中央研究所 | 触媒の製造方法 |
EP0707882A1 (en) * | 1994-10-21 | 1996-04-24 | Toyota Jidosha Kabushiki Kaisha | Catalyst for purifying exhaust gases |
JP3664182B2 (ja) * | 1994-12-19 | 2005-06-22 | トヨタ自動車株式会社 | 高耐熱性排ガス浄化用触媒とその製造方法 |
-
1995
- 1995-10-31 JP JP28299695A patent/JP3861303B2/ja not_active Expired - Lifetime
-
1996
- 1996-10-28 US US08/738,500 patent/US6083868A/en not_active Expired - Lifetime
- 1996-10-29 EP EP96117339A patent/EP0771584B1/en not_active Expired - Lifetime
- 1996-10-29 DE DE69623905T patent/DE69623905T2/de not_active Expired - Lifetime
- 1996-10-30 KR KR1019960049859A patent/KR100218204B1/ko active IP Right Grant
- 1996-10-30 AU AU70487/96A patent/AU692118B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JP3861303B2 (ja) | 2006-12-20 |
DE69623905D1 (de) | 2002-10-31 |
EP0771584A1 (en) | 1997-05-07 |
AU7048796A (en) | 1997-07-03 |
DE69623905T2 (de) | 2003-06-18 |
JPH09122486A (ja) | 1997-05-13 |
US6083868A (en) | 2000-07-04 |
AU692118B2 (en) | 1998-05-28 |
EP0771584B1 (en) | 2002-09-25 |
KR100218204B1 (ko) | 1999-09-01 |
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