DE69503986T2 - Abgasreiniger und Verfahren zu dessen Reinigung - Google Patents

Abgasreiniger und Verfahren zu dessen Reinigung

Info

Publication number
DE69503986T2
DE69503986T2 DE69503986T DE69503986T DE69503986T2 DE 69503986 T2 DE69503986 T2 DE 69503986T2 DE 69503986 T DE69503986 T DE 69503986T DE 69503986 T DE69503986 T DE 69503986T DE 69503986 T2 DE69503986 T2 DE 69503986T2
Authority
DE
Germany
Prior art keywords
cleaning
exhaust gas
gas purifier
purifier
exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69503986T
Other languages
English (en)
Other versions
DE69503986D1 (de
Inventor
Kiyohide Yoshida
Gyo Muramatsu
Akira Abe
Naoko Irite
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kocat Inc
Original Assignee
Riken Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP6186606A external-priority patent/JPH0780306A/ja
Priority claimed from JP6186564A external-priority patent/JPH0824653A/ja
Priority claimed from JP6186594A external-priority patent/JPH0824654A/ja
Application filed by Riken Corp filed Critical Riken Corp
Application granted granted Critical
Publication of DE69503986D1 publication Critical patent/DE69503986D1/de
Publication of DE69503986T2 publication Critical patent/DE69503986T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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
    • B01J23/8926—Copper and noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/104—Silver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/106—Gold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/903—Multi-zoned catalysts
    • B01D2255/9032—Two zones
    • 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
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
DE69503986T 1994-07-15 1995-03-17 Abgasreiniger und Verfahren zu dessen Reinigung Expired - Fee Related DE69503986T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6186606A JPH0780306A (ja) 1993-07-20 1994-07-15 排ガス浄化材及び排ガス浄化方法
JP6186564A JPH0824653A (ja) 1994-07-15 1994-07-15 排ガス浄化材及び排ガス浄化方法
JP6186594A JPH0824654A (ja) 1994-07-15 1994-07-15 排ガス浄化材及び排ガス浄化方法

Publications (2)

Publication Number Publication Date
DE69503986D1 DE69503986D1 (de) 1998-09-17
DE69503986T2 true DE69503986T2 (de) 1999-04-15

Family

ID=27325767

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69503986T Expired - Fee Related DE69503986T2 (de) 1994-07-15 1995-03-17 Abgasreiniger und Verfahren zu dessen Reinigung

Country Status (3)

Country Link
US (2) US5658542A (de)
EP (1) EP0692300B1 (de)
DE (1) DE69503986T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710499A3 (de) * 1994-11-04 1997-05-21 Agency Ind Science Techn Abgasreiniger und Verfahren zur Reinigung eines Abgases
EP0761289A3 (de) * 1995-09-08 1997-05-02 Riken Kk Abgasreiniger und Verfahren zur Reinigung von Abgas
US6045765A (en) * 1996-02-08 2000-04-04 Sakai Chemical Industry Co., Ltd. Catalyst and method for catalytic reduction of nitrogen oxides
JP3889467B2 (ja) * 1996-09-25 2007-03-07 日本特殊陶業株式会社 窒素酸化物除去用触媒材料及び該材料を用いた窒素酸化物処理装置並びに窒素酸化物除去方法
JPH10180110A (ja) * 1996-12-25 1998-07-07 Toyota Motor Corp 排ガス浄化用触媒
JPH1143365A (ja) * 1997-07-23 1999-02-16 Tohoku Bankin Toso Kogyo Kk 還元水用粒状セラミックスおよびその製造方法
US5880047A (en) * 1997-08-13 1999-03-09 Tohoku Bankin Toso Kogyo Kabushiki Kaisha Granular ceramic for improving burning efficiency of hydrocarbon oils and method of producing the same
GB9807131D0 (en) * 1998-04-03 1998-06-03 Ici Plc Copper-containing materials
US6037307A (en) * 1998-07-10 2000-03-14 Goal Line Environmental Technologies Llc Catalyst/sorber for treating sulfur compound containing effluent
US6497848B1 (en) 1999-04-02 2002-12-24 Engelhard Corporation Catalytic trap with potassium component and method of using the same
JP3870783B2 (ja) * 2001-12-27 2007-01-24 日産自動車株式会社 燃料電池自動車用排ガス浄化システムおよび燃料電池自動車の排ガスの浄化方法
US20060166816A1 (en) * 2004-06-23 2006-07-27 Catalytic Solutions, Inc. Catalysts and processes for selective hydrogenation of acetylene and dienes in light olefin feedstreams
US7498009B2 (en) * 2004-08-16 2009-03-03 Dana Uv, Inc. Controlled spectrum ultraviolet radiation pollution control process
JP2008168228A (ja) * 2007-01-12 2008-07-24 Okayama Univ 未燃カーボンを用いてディーゼルエンジン排ガス中の窒素酸化物を浄化するための触媒と方法
EP1990082B1 (de) * 2007-05-11 2011-08-17 Ford Global Technologies, LLC PGM freier DPF Katalysator zur Rußoxidation
US8071504B2 (en) * 2008-12-19 2011-12-06 Caterpillar Inc. Exhaust system having a gold-platinum group metal catalyst
JP5956496B2 (ja) * 2014-04-02 2016-07-27 株式会社豊田中央研究所 排ガス浄化用触媒、それを用いた排ガス浄化フィルタ及び排ガス浄化方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397034A (en) * 1966-01-19 1968-08-13 Union Oil Co Method and apparatus for treating exhaust gases
US3896616A (en) * 1972-04-21 1975-07-29 Engelhard Min & Chem Process and apparatus
US3857921A (en) * 1972-09-27 1974-12-31 Asahi Chemical Ind Method for eliminating nitrogen oxides and catalyst composition for use in practicing said method
JPH0611381B2 (ja) * 1986-10-17 1994-02-16 株式会社豊田中央研究所 排ガス浄化方法
DE3713169A1 (de) * 1987-04-17 1988-11-03 Bayer Ag Verfahren und vorrichtung zur reduktion von stickoxiden
JP2660411B2 (ja) * 1987-11-18 1997-10-08 トヨタ自動車株式会社 排気ガス中の窒素酸化物を還元除去する方法
JPH01171625A (ja) * 1987-12-26 1989-07-06 Toyota Central Res & Dev Lab Inc 排気浄化方法
DE4008371A1 (de) * 1989-03-15 1990-09-20 Riken Kk Abgasreiniger und verfahren zum reinigen von abgasen
JPH0418914A (ja) * 1990-05-15 1992-01-23 Mitsubishi Motors Corp 触媒コンバータ
US5534237A (en) * 1991-07-23 1996-07-09 Kubushiki Kaisha Riken Method of cleaning an exhaust gas and exhaust gas cleaner therefor
JPH0671139A (ja) * 1992-07-03 1994-03-15 Riken Corp 窒素酸化物除去方法
EP0605251A1 (de) * 1992-12-28 1994-07-06 Kabushiki Kaisha Riken Abgasreiniger

Also Published As

Publication number Publication date
US5658542A (en) 1997-08-19
EP0692300B1 (de) 1998-08-12
US5670444A (en) 1997-09-23
DE69503986D1 (de) 1998-09-17
EP0692300A3 (de) 1996-08-07
EP0692300A2 (de) 1996-01-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KOCAT INC., SEOUL, KR

8339 Ceased/non-payment of the annual fee