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GB1380376A - Catalytic exhaust gas treatment apparatus - Google Patents

Catalytic exhaust gas treatment apparatus

Info

Publication number
GB1380376A
GB1380376A GB1185673A GB1185673A GB1380376A GB 1380376 A GB1380376 A GB 1380376A GB 1185673 A GB1185673 A GB 1185673A GB 1185673 A GB1185673 A GB 1185673A GB 1380376 A GB1380376 A GB 1380376A
Authority
GB
United Kingdom
Prior art keywords
central
annular
exhaust gas
elements
passages
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
GB1185673A
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.)
Chemical Construction Corp
Original Assignee
Chemical Construction 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
Application filed by Chemical Construction Corp filed Critical Chemical Construction Corp
Publication of GB1380376A publication Critical patent/GB1380376A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • 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
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/32—Arrangements for supply of additional air using air pump
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/22—Inlet and outlet tubes being positioned on the same side of the apparatus
    • 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)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1380376 Treating exhaust gas CHEMICAL CONSTRUCTION CORP 12 March 1973 [20 March 1972] 11856/73 Heading F1B Apparatus for treating exhaust gas comprises a cylindrical container 20 with a central honeycomb gas passage element 11 and an annular honeycomb gas passage element 21 around the central element, each element comprising a plurality of parallel linear gas passages aligned parallel to the longitudinal axis of the container, at one end of the container an inlet 7 for exhaust gas to the central element and an outlet 26 for gases coming from the annular element and at the other end a passage from the central element to the annular element which passage contains an inlet for air, the walls of the passages of the central element being coated with a catalyst for reduction of nitrogen oxide to nitrogen and the walls of the passages of the annular element being coated with a catalyst for the oxidation of carbon monoxide and hydrocarbons. Both elements are composed of lithium aluminium silicate, or alumina. The catalyst is zinc, nickel, platinum, copper manganese, vanadium, cobalt, chromium or iron, or a catalytically promoted oxide of one of these elements or a mixture thereof. A preferred combination includes copper, cobalt, nickel and manganese. The central element may be separated from the annular element by a baffle, or the central and annular elements may be parts of a single body in which a number of passages on the periphery of a circle centred on the axis of the body have been filled or plugged at one or both ends with e.g. alumina and insulating cement. Exhaust gas from an engine 3, which may have air 5 mixed with it flows through the inlet 7 and the central element 11 to a chamber defined by a baffle 17, where it is mixed with air issuing from a pipe 16, and then flows through the annular element and through the outlet 26. The elements may be made as a series of circular corrugations or alternate cylindrical and sinuous elements.
GB1185673A 1972-03-20 1973-03-12 Catalytic exhaust gas treatment apparatus Expired GB1380376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23643272A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
GB1380376A true GB1380376A (en) 1975-01-15

Family

ID=22889485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1185673A Expired GB1380376A (en) 1972-03-20 1973-03-12 Catalytic exhaust gas treatment apparatus

Country Status (7)

Country Link
JP (1) JPS495862A (en)
BR (1) BR7301940D0 (en)
CA (1) CA957164A (en)
FR (1) FR2177353A5 (en)
GB (1) GB1380376A (en)
IT (1) IT979911B (en)
NL (1) NL7303587A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410787A1 (en) * 1977-12-02 1979-06-29 Mitsubishi Heavy Ind Ltd PROCESS AND INSTALLATION FOR CONTROLLING THE NITROGEN OXIDE CONTENT IN BURNT GASES FROM COMBUSTION APPLIANCES
GB2213075A (en) * 1987-12-28 1989-08-09 Usui Kokusai Sangyo Kk Metal carrier body for exhaust gas cleaning catalyst
GB2246715A (en) * 1990-08-11 1992-02-12 Ford Motor Co Reducing light-off time in a catalytic converter
GB2320692A (en) * 1996-12-27 1998-07-01 Emitec Emissionstechnologie Catalytic converter arrangement
EP1775011A1 (en) * 2005-10-14 2007-04-18 Finanziaria Unterland S.p.A. Pressure swing adsorption device
WO2014029008A1 (en) 2012-08-24 2014-02-27 Robin Crawford A catalytic converter component and process for its manufacture

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351327A (en) * 1976-10-20 1978-05-10 Matsushita Electric Ind Co Ltd Catalytic type exhaust purifier
JP4974548B2 (en) * 2006-03-06 2012-07-11 本田技研工業株式会社 Engine exhaust purification system
JP6562783B2 (en) * 2015-09-04 2019-08-21 日本碍子株式会社 Exhaust gas treatment apparatus and honeycomb structure manufacturing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410787A1 (en) * 1977-12-02 1979-06-29 Mitsubishi Heavy Ind Ltd PROCESS AND INSTALLATION FOR CONTROLLING THE NITROGEN OXIDE CONTENT IN BURNT GASES FROM COMBUSTION APPLIANCES
GB2213075A (en) * 1987-12-28 1989-08-09 Usui Kokusai Sangyo Kk Metal carrier body for exhaust gas cleaning catalyst
GB2213075B (en) * 1987-12-28 1991-07-17 Usui Kokusai Sangyo Kk Metal carrier body for exhaust gas cleaning catalyst
GB2246715A (en) * 1990-08-11 1992-02-12 Ford Motor Co Reducing light-off time in a catalytic converter
GB2320692A (en) * 1996-12-27 1998-07-01 Emitec Emissionstechnologie Catalytic converter arrangement
GB2320692B (en) * 1996-12-27 1999-01-13 Emitec Emissionstechnologie Catalytic converter arrangement
EP1775011A1 (en) * 2005-10-14 2007-04-18 Finanziaria Unterland S.p.A. Pressure swing adsorption device
WO2014029008A1 (en) 2012-08-24 2014-02-27 Robin Crawford A catalytic converter component and process for its manufacture
EP2888087A4 (en) * 2012-08-24 2016-05-18 Advanced Technology Emission Solutions Inc A catalytic converter component and process for its manufacture

Also Published As

Publication number Publication date
IT979911B (en) 1974-09-30
JPS495862A (en) 1974-01-19
BR7301940D0 (en) 1974-08-15
DE2313837A1 (en) 1973-10-04
DE2313837B2 (en) 1975-07-10
NL7303587A (en) 1973-09-24
FR2177353A5 (en) 1973-11-02
CA957164A (en) 1974-11-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees