ES8205940A1 - Procedimiento para mejorar el comportamiento de envejecimiento de catalizadores para la purificacion oxidativa de los gases de escape de motores de combustion. - Google Patents

Procedimiento para mejorar el comportamiento de envejecimiento de catalizadores para la purificacion oxidativa de los gases de escape de motores de combustion.

Info

Publication number
ES8205940A1
ES8205940A1 ES504050A ES504050A ES8205940A1 ES 8205940 A1 ES8205940 A1 ES 8205940A1 ES 504050 A ES504050 A ES 504050A ES 504050 A ES504050 A ES 504050A ES 8205940 A1 ES8205940 A1 ES 8205940A1
Authority
ES
Spain
Prior art keywords
purification
lead
internal
improve
exhaust gases
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
ES504050A
Other languages
English (en)
Other versions
ES504050A0 (es
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Publication of ES8205940A1 publication Critical patent/ES8205940A1/es
Publication of ES504050A0 publication Critical patent/ES504050A0/es
Granted 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture

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)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

PROCEDIMIENTO PARA EL RETRASO DEL ENVEJECIMIENTO DE CATALIZADORES PARA LA PURIFICACION DE LOS GASES DE ESCAPE DE MOTORES DE COMBUSTION. SE HACE FUNCIONAR EL MOTOR DE COMBUSTION CON UNA PROPORCION DE AIRE/COMBUSTIBLE EN LO ESENCIAL ESTEQUIOMETRIA. DICHA PROPORCION DE AIRE/COMBUSTIBLE SE DEBE MANTENER EN EL MARGEN DE INDICES <LAMBDA> DE 0,98 A 1,015 Y ESPECIALMENTE DE 0,99 A 1,00. EL CATALIZADOR DEBE HACERSE FUNCIONAR EN EL MARGEN DE TEMPERATURAS DE 400 A 850 C. Y PREFERENTEMENTE DE 500 A 700 C., Y NO DEBE SER SOMETIDO A TEMPERATURAS SUPERIORES A 800 C.
ES504050A 1980-09-25 1981-07-17 Procedimiento para mejorar el comportamiento de envejecimiento de catalizadores para la purificacion oxidativa de los gases de escape de motores de combustion. Granted ES504050A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803036130 DE3036130A1 (de) 1980-09-25 1980-09-25 Verfahren zur verbesserung des alterungsverhaltens von katalysatoren zur oxidativen reinigung der abgase von verbrenungskraftmaschinen bei einsatz von verbleiten kraftstoffen

Publications (2)

Publication Number Publication Date
ES8205940A1 true ES8205940A1 (es) 1982-06-16
ES504050A0 ES504050A0 (es) 1982-06-16

Family

ID=6112815

Family Applications (1)

Application Number Title Priority Date Filing Date
ES504050A Granted ES504050A0 (es) 1980-09-25 1981-07-17 Procedimiento para mejorar el comportamiento de envejecimiento de catalizadores para la purificacion oxidativa de los gases de escape de motores de combustion.

Country Status (7)

Country Link
EP (1) EP0048808A1 (es)
JP (1) JPS5786543A (es)
AU (1) AU7564081A (es)
BR (1) BR8106013A (es)
CA (1) CA1166617A (es)
DE (1) DE3036130A1 (es)
ES (1) ES504050A0 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073289A (en) * 1989-11-02 1991-12-17 The Curators Of The University Of Missouri Paint stripper composition having reduced volatility containing decanolactone, n-methylpyrrolidone and butyrolactone and method of use
DE19510642C2 (de) * 1994-12-02 1997-04-10 Volkswagen Ag Verfahren zur Reduzierung von Schadstoffen des Abgases einer mehrere Zylinder aufweisenden Brennkraftmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599427A (en) * 1969-09-22 1971-08-17 Ford Motor Co Exhaust gas purification
DE2146084A1 (de) * 1971-09-15 1973-03-29 Aerolyt Vertriebsgesellschaft Vorrichtung zum entgiften von abgasen, insbesondere aus verbrennungsmotoren
JPS51117234A (en) * 1975-04-08 1976-10-15 Nissan Motor Co Ltd Process of air-fuel ratio control in internal-combustion engine

Also Published As

Publication number Publication date
DE3036130A1 (de) 1982-05-06
JPS5786543A (en) 1982-05-29
BR8106013A (pt) 1982-06-08
ES504050A0 (es) 1982-06-16
CA1166617A (en) 1984-05-01
AU7564081A (en) 1982-04-01
EP0048808A1 (de) 1982-04-07

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960401