DE2227877A1 - Verfahren zur katalytischen reduktion von stickoxiden in abgasen - Google Patents

Verfahren zur katalytischen reduktion von stickoxiden in abgasen

Info

Publication number
DE2227877A1
DE2227877A1 DE2227877A DE2227877A DE2227877A1 DE 2227877 A1 DE2227877 A1 DE 2227877A1 DE 2227877 A DE2227877 A DE 2227877A DE 2227877 A DE2227877 A DE 2227877A DE 2227877 A1 DE2227877 A1 DE 2227877A1
Authority
DE
Germany
Prior art keywords
catalyst
rhodium
oil
ruthenium
percent
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.)
Pending
Application number
DE2227877A
Other languages
German (de)
English (en)
Inventor
Karl Hermann Dipl In Koepernik
Guenter Dr Weidenbach
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.)
Kali Chemie AG
Original Assignee
Kali Chemie 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 Kali Chemie AG filed Critical Kali Chemie AG
Priority to DE2227877A priority Critical patent/DE2227877A1/de
Priority to GB2709973A priority patent/GB1432799A/en
Priority to SE7308045A priority patent/SE393436B/xx
Priority to BE132015A priority patent/BE800616A/fr
Priority to FR7320813A priority patent/FR2188678A5/fr
Priority to NL7308041A priority patent/NL7308041A/xx
Priority to JP48064611A priority patent/JPS4955562A/ja
Priority to IT25147/73A priority patent/IT989053B/it
Publication of DE2227877A1 publication Critical patent/DE2227877A1/de
Pending 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
    • 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
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • 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
    • B01D2255/1023—Palladium
    • 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
    • B01D2255/1026—Ruthenium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (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)
DE2227877A 1972-06-08 1972-06-08 Verfahren zur katalytischen reduktion von stickoxiden in abgasen Pending DE2227877A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE2227877A DE2227877A1 (de) 1972-06-08 1972-06-08 Verfahren zur katalytischen reduktion von stickoxiden in abgasen
GB2709973A GB1432799A (en) 1972-06-08 1973-06-06 Method for the catalytic reduction of oxides of nitrogen in exhaust gases
SE7308045A SE393436B (sv) 1972-06-08 1973-06-07 Sett vid katalytisk reduktion av kveveoxider i avgaser
BE132015A BE800616A (fr) 1972-06-08 1973-06-07 Procede pour la reduction catalytique des oxydes d'azote dans les gaz d'echappement
FR7320813A FR2188678A5 (fr) 1972-06-08 1973-06-07
NL7308041A NL7308041A (fr) 1972-06-08 1973-06-08
JP48064611A JPS4955562A (fr) 1972-06-08 1973-06-08
IT25147/73A IT989053B (it) 1972-06-08 1973-06-12 Procedimento per la riduzione catalitica di ossidi d azotodispositivo elettronico per la regolazione automatica e conti nua dell altezza del pelo di cimatura su manufatti in in gas di scarico genere pur a spessore diversificato an che a cavallo delle cuciture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2227877A DE2227877A1 (de) 1972-06-08 1972-06-08 Verfahren zur katalytischen reduktion von stickoxiden in abgasen

Publications (1)

Publication Number Publication Date
DE2227877A1 true DE2227877A1 (de) 1974-01-03

Family

ID=5847157

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2227877A Pending DE2227877A1 (de) 1972-06-08 1972-06-08 Verfahren zur katalytischen reduktion von stickoxiden in abgasen

Country Status (8)

Country Link
JP (1) JPS4955562A (fr)
BE (1) BE800616A (fr)
DE (1) DE2227877A1 (fr)
FR (1) FR2188678A5 (fr)
GB (1) GB1432799A (fr)
IT (1) IT989053B (fr)
NL (1) NL7308041A (fr)
SE (1) SE393436B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361711A (en) * 1981-12-18 1982-11-30 The Standard Oil Company Alcohols from olefins and synthesis gas

Also Published As

Publication number Publication date
BE800616A (fr) 1973-12-07
FR2188678A5 (fr) 1974-01-18
JPS4955562A (fr) 1974-05-29
IT989053B (it) 1975-05-20
NL7308041A (fr) 1973-12-11
SE393436B (sv) 1977-05-09
GB1432799A (en) 1976-04-22

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Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee