CN1206628A - 汽车尾气催化剂 - Google Patents
汽车尾气催化剂 Download PDFInfo
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- CN1206628A CN1206628A CN98109846A CN98109846A CN1206628A CN 1206628 A CN1206628 A CN 1206628A CN 98109846 A CN98109846 A CN 98109846A CN 98109846 A CN98109846 A CN 98109846A CN 1206628 A CN1206628 A CN 1206628A
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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
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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
- B01J23/63—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
- B01J23/70—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
- B01J23/894—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 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
- B01J23/70—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
- B01J23/8946—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 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
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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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/16—Reducing
- B01J37/18—Reducing with gases containing free hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/908—O2-storage component incorporated in the catalyst
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
物料 | 浓度(g/l) |
La/Al2O3 | 100 |
CeO2/ZrO270/30 | 30 |
CeO2源自乙酸盐 | 30 |
ZrO2源自乙酸盐 | 30 |
BaO 源自乙酸盐 | 20 |
NiO | 4.3 |
Pd 源自乙酸盐 | 3.9 |
总计 | 218.2 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B1 | 58.8 | 89.6 | 72.9 | 62.5 | 90.2 | 66.6 | 63.4 | 90.5 | 63.2 | 65.4 | 90.6 | 57.7 | 67.9 | 90.5 | 55.9 |
VB1 | 44.7 | 87.9 | 62.4 | 47.7 | 88.5 | 57.6 | 50.2 | 88.4 | 56.4 | 51.8 | 88.8 | 53.8 | 54.0 | 88.7 | 52.3 |
VB2 | 27.5 | 77.9 | 44.9 | 29.8 | 78.8 | 41.7 | 31.5 | 78.6 | 41.4 | 32.2 | 79.8 | 39.9 | 32.8 | 80.3 | 39.7 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B1 | 63.1 | 88.4 | 77.3 | 68.4 | 88.5 | 77.3 | 85.3 | 91.3 | 73.9 | 91.7 | 91.4 | 62.8 | 93.7 | 91.4 | 57.7 |
VB1 | 61.9 | 88.5 | 74.5 | 67.0 | 88.6 | 71.7 | 75.7 | 89.6 | 67.0 | 81.6 | 89.7 | 60.0 | 86.3 | 90.1 | 55.4 |
VB2 | 36.7 | 66.3 | 34.8 | 36.2 | 67.1 | 36.1 | 52.3 | 81.8 | 46.1 | 57.7 | 83.7 | 44.9 | 63.9 | 85.7 | 43.4 |
第1层物料 [g/l] | 第2层物料 [g/l] | ||
r-Al2O3+Pd | 431.94 | r-Al2O3+Pd | 431.94 |
CeO2胶态 | 18.4 | ZrO2源自硝酸盐 | 6.1 |
CeO2源自硝酸盐 | 30.7 | La2O3源自硝酸盐 | 6.1 |
CeO2/ZrO2 20/80 | 30.7 | Nd2O3源自硝酸盐 | 6.1 |
ZrO2源自乙酸盐 | 8.6 | SrO源自硝酸盐 | 6.1 |
La2O3源自硝酸盐 | 6.1 | ||
BaO源自乙酸盐 | 3.7 | ||
NiO | 4.3 | ||
总计 | 147.44 | 总计 | 69.34 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B2 | 52.2 | 90.4 | 78.3 | 69.6 | 92.4 | 82.6 | 87.1 | 94.3 | 86.2 | 97.6 | 94.7 | 76.2 | 98.7 | 93.9 | 59.3 |
VB3 | 55.9 | 90.5 | 80.8 | 66.5 | 91.3 | 79.5 | 78.1 | 91.7 | 76.8 | 89.8 | 92.4 | 69.9 | 95.6 | 92.1 | 57.5 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B2 | 72.9 | 94.5 | 94.4 | 73.6 | 94.1 | 81.6 | 77.0 | 94.2 | 74.7 | 80.5 | 94.2 | 69.9 | 83.0 | 94.0 | 66.0 |
VB3 | 52.1 | 90.1 | 66.2 | 54.0 | 90.2 | 62.0 | 56.1 | 90.7 | 60.8 | 60.2 | 90.9 | 58.6 | 63.6 | 90.9 | 57.4 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B3 | 59.8 | 89.4 | 70.6 | 77.3 | 91.3 | 75.4 | 91.2 | 92.1 | 62.5 | 95.0 | 91.7 | 51.1 | 95.8 | 92.0 | 45.9 |
B4 | 64.2 | 90.6 | 78.5 | 83.8 | 93.6 | 80.9 | 97.7 | 94.2 | 63.2 | 98.1 | 93.2 | 55.1 | 98.3 | 93.3 | 48.2 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B3 | 53.7 | 90.6 | 56.4 | 55.5 | 90.7 | 54.6 | 57.0 | 90.6 | 53.1 | 63.5 | 90.9 | 49.1 | 66.8 | 91.3 | 46.5 |
B4 | 71.5 | 93.7 | 73.1 | 76.9 | 94.0 | 70.2 | 79.2 | 93.9 | 67.9 | 82.8 | 93.9 | 63.2 | 85.5 | 94.1 | 57.2 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B4 | 59.9 | 81.4 | 55.4 | 66.7 | 81.4 | 52.3 | 69.7 | 81.9 | 49.4 | 74.5 | 81.7 | 46.6 | 80.3 | 81.6 | 42.9 |
B5 | 71.0 | 86.6 | 69.8 | 80.9 | 87.1 | 66.2 | 86.0 | 87.5 | 60.0 | 88.9 | 86.9 | 52.7 | 93.2 | 86.7 | 43.6 |
实施例 | λ=0.993 | λ=0.996 | λ=0.999 | λ=1.002 | λ=1.006 | ||||||||||
CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | CO% | HC% | NOx% | |
B4 | 40.1 | 77.0 | 43.4 | 42.2 | 77.2 | 41.0 | 44.4 | 77.4 | 40.5 | 45.2 | 76.6 | 38.0 | 45.6 | 77.3 | 37.9 |
B5 | 57.2 | 84.9 | 55.0 | 62.2 | 85.0 | 51.2 | 64.4 | 84.8 | 47.8 | 64.8 | 84.4 | 45.4 | 65.2 | 84.5 | 44.8 |
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19714536A DE19714536A1 (de) | 1997-04-09 | 1997-04-09 | Autoabgaskatalysator |
DE19714536.1 | 1997-04-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1206628A true CN1206628A (zh) | 1999-02-03 |
CN1097481C CN1097481C (zh) | 2003-01-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98109846A Expired - Fee Related CN1097481C (zh) | 1997-04-09 | 1998-04-08 | 汽车尾气催化剂 |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0870531B1 (zh) |
JP (1) | JP3953630B2 (zh) |
KR (1) | KR100661258B1 (zh) |
CN (1) | CN1097481C (zh) |
AR (1) | AR012344A1 (zh) |
AT (1) | ATE266459T1 (zh) |
AU (1) | AU728946B2 (zh) |
BR (1) | BR9801385A (zh) |
CA (1) | CA2234355C (zh) |
CZ (1) | CZ100498A3 (zh) |
DE (2) | DE19714536A1 (zh) |
PL (1) | PL325733A1 (zh) |
RU (1) | RU2211724C2 (zh) |
TR (1) | TR199800611A2 (zh) |
TW (1) | TW396056B (zh) |
ZA (1) | ZA983002B (zh) |
Cited By (13)
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CN100374199C (zh) * | 2004-05-14 | 2008-03-12 | 中国科学院生态环境研究中心 | 一种铈锆复合氧化物负载钯催化剂的制备方法 |
CN100391598C (zh) * | 2006-06-20 | 2008-06-04 | 茂名学院 | 一种净化内燃机尾气的NOx储存-还原催化剂 |
CN100396363C (zh) * | 2004-11-25 | 2008-06-25 | 中国科学院生态环境研究中心 | 一种三效催化剂及其制备方法 |
CN101915146A (zh) * | 2009-03-02 | 2010-12-15 | 通用汽车环球科技运作公司 | 用于碳氢化合物燃料动力源的nox排放控制系统 |
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CN101687177B (zh) * | 2007-06-27 | 2012-08-29 | 丰田自动车株式会社 | 催化剂载体和排气净化催化剂 |
CN101820997B (zh) * | 2007-08-09 | 2013-07-24 | 巴斯夫催化剂公司 | 催化剂组合物 |
CN103975090A (zh) * | 2011-11-30 | 2014-08-06 | 排放技术有限公司 | 废气处理装置中的扩散阻挡层 |
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US4624940A (en) * | 1985-04-12 | 1986-11-25 | Engelhard Corporation | High temperature catalyst compositions for internal combustion engine |
JP2537239B2 (ja) * | 1987-08-28 | 1996-09-25 | エヌ・イーケムキヤツト 株式会社 | 耐熱性に優れた内燃機関排気ガス浄化用触媒及びその製造方法 |
CA1334962C (en) * | 1988-04-14 | 1995-03-28 | Tomohisa Ohata | Catalyst for purifying exhaust gas and method for production thereof |
CA2064977C (en) * | 1991-04-05 | 1998-09-22 | Eiichi Shiraishi | Catalyst for purifying exhaust gas |
JP3264696B2 (ja) * | 1991-09-13 | 2002-03-11 | 株式会社日本触媒 | 排気ガス浄化用触媒およびこれを用いてなる浄化システム |
US5212142A (en) * | 1991-11-04 | 1993-05-18 | Engelhard Corporation | High performance thermally stable catalyst |
JP3145175B2 (ja) * | 1992-03-31 | 2001-03-12 | 三井金属鉱業株式会社 | 排ガス浄化用触媒及びその製造方法 |
-
1997
- 1997-04-09 DE DE19714536A patent/DE19714536A1/de not_active Ceased
-
1998
- 1998-03-17 TW TW087103936A patent/TW396056B/zh not_active IP Right Cessation
- 1998-03-19 DE DE59811353T patent/DE59811353D1/de not_active Expired - Lifetime
- 1998-03-19 EP EP98104977A patent/EP0870531B1/de not_active Expired - Lifetime
- 1998-03-19 AT AT98104977T patent/ATE266459T1/de not_active IP Right Cessation
- 1998-04-02 CZ CZ981004A patent/CZ100498A3/cs unknown
- 1998-04-02 TR TR1998/00611A patent/TR199800611A2/xx unknown
- 1998-04-06 AR ARP980101564A patent/AR012344A1/es not_active Application Discontinuation
- 1998-04-07 JP JP09438398A patent/JP3953630B2/ja not_active Expired - Fee Related
- 1998-04-07 PL PL98325733A patent/PL325733A1/xx unknown
- 1998-04-08 CN CN98109846A patent/CN1097481C/zh not_active Expired - Fee Related
- 1998-04-08 CA CA002234355A patent/CA2234355C/en not_active Expired - Fee Related
- 1998-04-08 RU RU98106637/12A patent/RU2211724C2/ru active
- 1998-04-08 ZA ZA983002A patent/ZA983002B/xx unknown
- 1998-04-08 KR KR1019980012327A patent/KR100661258B1/ko not_active IP Right Cessation
- 1998-04-08 BR BR9801385A patent/BR9801385A/pt not_active IP Right Cessation
- 1998-04-08 AU AU60753/98A patent/AU728946B2/en not_active Ceased
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US6956008B2 (en) | 2002-05-15 | 2005-10-18 | Toyota Jidosha Kabushiki Kaisha | Storage-reduction type NOx purifying catalyst |
CN100374199C (zh) * | 2004-05-14 | 2008-03-12 | 中国科学院生态环境研究中心 | 一种铈锆复合氧化物负载钯催化剂的制备方法 |
CN100396363C (zh) * | 2004-11-25 | 2008-06-25 | 中国科学院生态环境研究中心 | 一种三效催化剂及其制备方法 |
CN100391598C (zh) * | 2006-06-20 | 2008-06-04 | 茂名学院 | 一种净化内燃机尾气的NOx储存-还原催化剂 |
CN101687177B (zh) * | 2007-06-27 | 2012-08-29 | 丰田自动车株式会社 | 催化剂载体和排气净化催化剂 |
CN101820997B (zh) * | 2007-08-09 | 2013-07-24 | 巴斯夫催化剂公司 | 催化剂组合物 |
CN101915146A (zh) * | 2009-03-02 | 2010-12-15 | 通用汽车环球科技运作公司 | 用于碳氢化合物燃料动力源的nox排放控制系统 |
CN101773830B (zh) * | 2010-02-25 | 2012-06-27 | 华东理工大学 | 一种用于三效催化的高温稳定性催化剂 |
CN103975090A (zh) * | 2011-11-30 | 2014-08-06 | 排放技术有限公司 | 废气处理装置中的扩散阻挡层 |
CN103975090B (zh) * | 2011-11-30 | 2016-08-24 | 排放技术有限公司 | 废气处理装置中的扩散阻挡层 |
US9433897B2 (en) | 2011-11-30 | 2016-09-06 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Process for producing a diffusion barrier layer and process for producing an exhaust gas treatment unit |
CN105983406A (zh) * | 2015-03-23 | 2016-10-05 | 株式会社丰田中央研究所 | 废气净化用催化剂、NOx存储-还原催化剂和净化废气的方法 |
CN105983406B (zh) * | 2015-03-23 | 2019-08-30 | 株式会社丰田中央研究所 | 废气净化用催化剂、NOx存储-还原催化剂和净化废气的方法 |
CN107597127A (zh) * | 2017-08-16 | 2018-01-19 | 柳州申通汽车科技有限公司 | 一种汽车尾气三元催化剂 |
CN107597112A (zh) * | 2017-08-16 | 2018-01-19 | 柳州申通汽车科技有限公司 | 一种汽车用三元催化剂 |
CN109847739A (zh) * | 2019-03-26 | 2019-06-07 | 福州大学 | 一种Pd/γ-三氧化二铝催化剂的改性方法 |
CN109847739B (zh) * | 2019-03-26 | 2021-06-01 | 福州大学 | 一种Pd/γ-三氧化二铝催化剂的改性方法 |
Also Published As
Publication number | Publication date |
---|---|
JP3953630B2 (ja) | 2007-08-08 |
KR100661258B1 (ko) | 2007-05-17 |
PL325733A1 (en) | 1998-10-12 |
DE59811353D1 (de) | 2004-06-17 |
JPH10277394A (ja) | 1998-10-20 |
CA2234355A1 (en) | 1998-10-09 |
DE19714536A1 (de) | 1998-10-15 |
BR9801385A (pt) | 1999-08-03 |
EP0870531B1 (de) | 2004-05-12 |
CN1097481C (zh) | 2003-01-01 |
TW396056B (en) | 2000-07-01 |
AU728946B2 (en) | 2001-01-18 |
EP0870531A1 (de) | 1998-10-14 |
AU6075398A (en) | 1998-10-15 |
KR19980081167A (ko) | 1998-11-25 |
MX9802824A (es) | 1998-12-31 |
ATE266459T1 (de) | 2004-05-15 |
ZA983002B (en) | 1998-10-21 |
CZ100498A3 (cs) | 1998-10-14 |
TR199800611A3 (tr) | 1999-07-21 |
RU2211724C2 (ru) | 2003-09-10 |
AR012344A1 (es) | 2000-10-18 |
TR199800611A2 (xx) | 1999-07-21 |
CA2234355C (en) | 2007-06-26 |
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