SE7703019L - CATALYST PROCEDURE - Google Patents

CATALYST PROCEDURE

Info

Publication number
SE7703019L
SE7703019L SE7703019A SE7703019A SE7703019L SE 7703019 L SE7703019 L SE 7703019L SE 7703019 A SE7703019 A SE 7703019A SE 7703019 A SE7703019 A SE 7703019A SE 7703019 L SE7703019 L SE 7703019L
Authority
SE
Sweden
Prior art keywords
alumina
catalyst
silica
catalyst procedure
osmium
Prior art date
Application number
SE7703019A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
S J Knight
Original Assignee
Johnson Matthey Co Ltd
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 Johnson Matthey Co Ltd filed Critical Johnson Matthey Co Ltd
Publication of SE7703019L publication Critical patent/SE7703019L/en

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
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • 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
    • 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
    • B01D2255/102—Platinum group metals
    • B01D2255/1028—Iridium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2063—Lanthanum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

This invention relates to catalytic processes for the purification of air and other gaseous media, for example, exhaust gases from industrial plant and automobiles. In particular, the invention is concerned with contacting the gas at an elevated temperature with a catalyst comprising one or more of the metals platinum, rhodium, iridium, osmium, palladium, ruthenium, gold and silver supported on or associated with a refractory oxide support made from silica, alumina or mixtures or compositions containing silica and/or alumina.
SE7703019A 1976-03-18 1977-03-17 CATALYST PROCEDURE SE7703019L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10953/76A GB1581628A (en) 1976-03-18 1976-03-18 Catalytic purification of automobile exhaust gases

Publications (1)

Publication Number Publication Date
SE7703019L true SE7703019L (en) 1977-09-19

Family

ID=9977353

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7703019A SE7703019L (en) 1976-03-18 1977-03-17 CATALYST PROCEDURE

Country Status (8)

Country Link
JP (1) JPS52116779A (en)
BE (1) BE852590A (en)
CA (1) CA1100292A (en)
DE (1) DE2712009A1 (en)
FR (1) FR2344323A1 (en)
GB (1) GB1581628A (en)
SE (1) SE7703019L (en)
ZA (1) ZA771544B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58131123A (en) * 1982-02-01 1983-08-04 Toyota Motor Corp Filter for purifying exhaust gas in internal combustion engine
US4438082A (en) * 1982-09-30 1984-03-20 Engelhard Corporation Platinum gold catalyst for removing NOx and NH3 from gas streams
ZA837689B (en) * 1982-10-18 1984-06-27 Universal Matthey Prod Oxidation catalysts
US4657880A (en) * 1985-03-18 1987-04-14 Corning Glass Works Preparation of high surface area agglomerates for catalyst support and preparation of monolithic support structures containing them
JPS63252908A (en) * 1987-04-08 1988-10-20 Agency Of Ind Science & Technol Immobilized oxide of metallic fine particle, production thereof, oxidation catalyst, reduction catalyst, combustible gas sensor element and catalyst for electrode
JPS6483513A (en) * 1987-09-24 1989-03-29 Agency Ind Science Techn Ultrafine gold particle immobilized alkaline earth metallic compound, production thereof, oxidation catalyst, reduction catalyst and combustible gas sensor element
EP0614692A1 (en) * 1990-05-03 1994-09-14 Sakai Chemical Industry Co., Ltd., Catalysts and methods for denitrization
DE4041088A1 (en) * 1990-12-21 1992-07-02 Afs Entwicklungs & Vertriebs G Ozone removal from gas mixt. by filtering through two catalysts - first platinum@ to convert reactive gas to inert gas, then catalyst converting ozone to oxygen@
JP2801423B2 (en) * 1991-03-08 1998-09-21 住友金属鉱山 株式会社 Nitrogen oxide purification catalyst
KR950007916B1 (en) * 1991-05-10 1995-07-21 스미도모킨조구고오상 가부시기가이샤 Method for removing nitrogen exides from exhaust gases
US5298230A (en) * 1992-05-01 1994-03-29 Nalco Fuel Tech Process for the efficient catalytic reduction of nitrogen oxides
JP2618316B2 (en) * 1992-08-05 1997-06-11 財団法人石油産業活性化センター Catalyst for catalytic reduction of nitrogen oxides
JP3430422B2 (en) * 1992-12-14 2003-07-28 財団法人石油産業活性化センター Catalyst for catalytic reduction of nitrogen oxides
JP2631814B2 (en) * 1994-04-20 1997-07-16 株式会社リケン Exhaust gas purifying material and exhaust gas purifying method
CA2278360A1 (en) * 1997-01-22 1998-07-30 Bojidara Grigorova Reduction of nitrogen oxide
US6361754B1 (en) 1997-03-27 2002-03-26 Clean Diesel Technologies, Inc. Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction
US5976475A (en) * 1997-04-02 1999-11-02 Clean Diesel Technologies, Inc. Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
US5924280A (en) * 1997-04-04 1999-07-20 Clean Diesel Technologies, Inc. Reducing NOx emissions from an engine while maximizing fuel economy
US5968464A (en) 1997-05-12 1999-10-19 Clean Diesel Technologies, Inc. Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction
BG62687B1 (en) * 1997-05-15 2000-05-31 "Ламан-Консулт"Оод Gold catalyst for the oxidation of carbon oxide and hydrocarbons, reduction of nitrogen oxides and ozone decomposition
US6592833B1 (en) * 1999-10-18 2003-07-15 Delphi Technologies, Inc. Method of NOx abatement in high temperature lean NOx catalyst systems
JP2002052379A (en) * 2000-08-09 2002-02-19 Babcock Hitachi Kk Method and apparatus for cleaning ammonia-containing wastewater
US7090810B2 (en) 2000-12-01 2006-08-15 Fuel Tech Inc. Selective catalytic reduction of nox enabled by sidestream urea decomposition
US7829033B2 (en) 2003-07-03 2010-11-09 Fuel Tech, Inc. Selective catalytic reduction of NOx enabled by sidestream urea decomposition
JP4969843B2 (en) 2005-12-09 2012-07-04 新日鉄マテリアルズ株式会社 Exhaust gas purification catalyst and exhaust gas purification catalyst member
WO2008024367A2 (en) 2006-08-22 2008-02-28 Babcock Power, Inc. Thermal decomposition of urea in a side stream of combustion flue gas using a regenerative heat exchanger
US20080267837A1 (en) 2007-04-27 2008-10-30 Phelps Calvin E Conversion of urea to reactants for NOx reduction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7203790A (en) * 1971-03-23 1972-09-26
US3784675A (en) * 1971-08-02 1974-01-08 Gulf Research Development Co Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines
GB1414133A (en) * 1971-11-18 1975-11-19 Johnson Matthey Co Ltd Catalysis
US4076792A (en) * 1972-04-12 1978-02-28 Corning Glass Works Catalyst systems for the reduction of the oxides of nitrogen

Also Published As

Publication number Publication date
FR2344323A1 (en) 1977-10-14
JPS52116779A (en) 1977-09-30
CA1100292A (en) 1981-05-05
GB1581628A (en) 1980-12-17
ZA771544B (en) 1978-01-25
DE2712009A1 (en) 1977-09-22
BE852590A (en) 1977-09-19

Similar Documents

Publication Publication Date Title
SE7703019L (en) CATALYST PROCEDURE
DK0600962T3 (en) Silvery Carrier Catalyst and Method for Catalytic Decomposition of Nitrogen Monoxide
GB1052106A (en)
GB997611A (en) Catalytic oxidation unit and heater
ES383628A1 (en) Catalytic reactions
ES8300639A1 (en) Ozone abatement catalyst having improved durability and low temperature performance
DE3372356D1 (en) Process for the removal of hydrogen from gases
JPS5687430A (en) Catalyst for purifying exhaust gas
GB1491205A (en) Flameless heaters
DE3571938D1 (en) Process for producing monolithic catalyst for purifying exhaust gases
ATE395972T1 (en) PRESULFATED AND PRENITIRED CATALYST CONTAINING PLATINUM ON SUPPORT COMPRISING MAGNESIUM OXIDE AND CEROXIDE FOR THE REDUCTION OF NO TO N2 WITH HYDROGEN UNDER NOX OXIDATION CONDITIONS
ES460525A1 (en) Temporary shutdown of co-combustion devices
DE3267723D1 (en) Catalysts
ES2107674T3 (en) SUPPORTED CATALYST OF ALUMINUM OXIDE CONTAINING SILVER, AND PROCEDURE FOR THE DECOMPOSITION OF MONOXIDE OF DINITROGEN.
KR920703204A (en) Regeneration or Activation of Precious Metal Catalysts Using Fluorohalocarbon or Fluorohalohydrocarbons
FR2368987A1 (en) CATALYTIC REDUCTION OF NITROGEN OXIDES
MY123488A (en) Gas processing agent and manufacturing method therefor, gas purification method, gas purifier and gas purification apparatus
GB1017940A (en) An apparatus and a method for detecting the presence of hydrogen in a gaseous sample
US3950491A (en) Reactivation of automobile exhaust oxidation catalyst
IT1002914B (en) CATALYST INCLUDING NICKEL AND RHODIUM ON CERAMIC SUPPORT MONOLITHS CO AND PROCEDURE OF USE TO ELIMINATE NITROGEN OXIDES AND CARBON OXIDE FROM EXHAUST GAS
JPS577254A (en) Catalyst for reforming of methanol
JPS5538487B2 (en)
GB1123585A (en) Process for the removal of hydrogen and/or oxygen from gaseous mixtures
KR900009132A (en) Exhaust gas purification catalyst that suppresses generation of hydrogen sulfide
JPS57153737A (en) Catalyst for purifying exhaust gas

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 7703019-5