GB1401673A - Catalytic exhaust system for internal combustion engines - Google Patents

Catalytic exhaust system for internal combustion engines

Info

Publication number
GB1401673A
GB1401673A GB3697372A GB3697372A GB1401673A GB 1401673 A GB1401673 A GB 1401673A GB 3697372 A GB3697372 A GB 3697372A GB 3697372 A GB3697372 A GB 3697372A GB 1401673 A GB1401673 A GB 1401673A
Authority
GB
United Kingdom
Prior art keywords
catalyst
exhaust system
nitrogen
internal combustion
aug
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
Application number
GB3697372A
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.)
VARTA AG
Original Assignee
VARTA AG
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
Application filed by VARTA AG filed Critical VARTA AG
Publication of GB1401673A publication Critical patent/GB1401673A/en
Expired legal-status Critical Current

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
    • B01J25/00—Catalysts of the Raney type
    • B01J25/02—Raney nickel
    • 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)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (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

1401673 Exhaust gas treatment VARTA AG 8 Aug 1972 [9 Aug 1971] 36973/72 Heading C1A [Also in Division B1] An exhaust system for an I.C. engine has a catalyst in the path traversed by exhaust gases, the catalyst comprising one or more of the metals nickel, cobalt, iron, copper, silver, gold, chromium, molybdenum and tungsten, each such metal, having been obtained by leaching an alloy of it and an alloying metal with an acid or alkaline solution to remove said alloying metal. Part of the catalyst may have exhaust gas passed through it to reduce nitrogen oxides, following which air is added and the resulting mixture passed through the remainder of the catalyst for oxidation. The treatment of gas containing carbon dioxide, carbon monoxide, water, hydrogen, oxygen, ammonia, hydrocarbons, nitrogen and oxides of nitrogen is exemplified.
GB3697372A 1971-08-09 1972-08-08 Catalytic exhaust system for internal combustion engines Expired GB1401673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2139774A DE2139774C3 (en) 1971-08-09 1971-08-09 Device for detoxifying exhaust gases from internal combustion engines

Publications (1)

Publication Number Publication Date
GB1401673A true GB1401673A (en) 1975-07-16

Family

ID=5816194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3697372A Expired GB1401673A (en) 1971-08-09 1972-08-08 Catalytic exhaust system for internal combustion engines

Country Status (5)

Country Link
JP (1) JPS4826691A (en)
DE (1) DE2139774C3 (en)
FR (1) FR2148453A1 (en)
GB (1) GB1401673A (en)
IT (1) IT959939B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1127613A1 (en) * 2000-02-18 2001-08-29 Degussa AG Shaped fixed bed copper-Raney catalyst to be used in the dehydrogenation of alcohols
WO2003033140A2 (en) * 2001-10-18 2003-04-24 Monsanto Technology Llc Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
US6706662B2 (en) 2000-04-11 2004-03-16 Monsanto Technology Llc Catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
WO2008145180A1 (en) * 2007-05-29 2008-12-04 Evonik Degussa Gmbh Activated base metal catalysts
US8889910B2 (en) 2007-05-29 2014-11-18 Evonik Degussa Gmbh Activated base metal catalysts
US8889911B2 (en) 2007-05-29 2014-11-18 Evonik Degussa Gmbh Activated base metal catalysts
US9108182B2 (en) 2007-10-15 2015-08-18 Evonik Degussa Gmbh Fast filtering powder catalytic mixtures

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL159020B (en) * 1972-12-07 1979-01-15 Hitachi Shipbuilding Eng Co PROCESS FOR THE MANUFACTURE OF AN ARTICLE WITH A CATALYTIC SURFACE, AND OBJECT OBTAINED BY THIS PROCESS.
US4292208A (en) 1974-05-03 1981-09-29 Alloy Surfaces Company, Inc. Diffusion coating combinations
JPS5814252Y2 (en) * 1975-08-20 1983-03-22 アイシン精機株式会社 brake system
JPS5337890U (en) * 1976-09-07 1978-04-03
DE4345265A1 (en) * 1993-10-16 1995-09-21 Degussa Prodn. of shaped Raney metal catalysts for use in a fixed bed
DE19540191C1 (en) * 1995-10-30 1996-11-21 Degussa Prepn. of isophorone:di:amine from isophorone nitrile
JP5162404B2 (en) * 2008-10-03 2013-03-13 株式会社豊田中央研究所 Exhaust gas purification catalyst and method for producing the same

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1127613A1 (en) * 2000-02-18 2001-08-29 Degussa AG Shaped fixed bed copper-Raney catalyst to be used in the dehydrogenation of alcohols
US8450523B2 (en) 2000-04-11 2013-05-28 Monsanto Technology Llc Process for preparation of a carboxylic acid salt by dehydrogenation of a primary alcohol
US6706662B2 (en) 2000-04-11 2004-03-16 Monsanto Technology Llc Catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
US7329778B2 (en) 2000-04-11 2008-02-12 Monsanto Technology Llc Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
US8298985B2 (en) 2000-04-11 2012-10-30 Monsanto Technology Llc Catalyst for dehydrogenating primary alcohols
WO2003033140A2 (en) * 2001-10-18 2003-04-24 Monsanto Technology Llc Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
WO2003033140A3 (en) * 2001-10-18 2003-07-17 Monsanto Technology Llc Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
US7126024B2 (en) 2001-10-18 2006-10-24 Monsanto Technology Llc Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
WO2008145180A1 (en) * 2007-05-29 2008-12-04 Evonik Degussa Gmbh Activated base metal catalysts
US8889910B2 (en) 2007-05-29 2014-11-18 Evonik Degussa Gmbh Activated base metal catalysts
US8889911B2 (en) 2007-05-29 2014-11-18 Evonik Degussa Gmbh Activated base metal catalysts
US9643162B2 (en) 2007-05-29 2017-05-09 Evonik Degussa Gmbh Activated base metal catalysts
US9108182B2 (en) 2007-10-15 2015-08-18 Evonik Degussa Gmbh Fast filtering powder catalytic mixtures

Also Published As

Publication number Publication date
DE2139774A1 (en) 1973-04-19
JPS4826691A (en) 1973-04-07
DE2139774B2 (en) 1974-05-02
FR2148453A1 (en) 1973-03-23
IT959939B (en) 1973-11-10
DE2139774C3 (en) 1975-01-02

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed