CA2227141A1 - Procedes permettant de diminuer les emissions toxiques d'un moteur diesel - Google Patents

Procedes permettant de diminuer les emissions toxiques d'un moteur diesel Download PDF

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Publication number
CA2227141A1
CA2227141A1 CA002227141A CA2227141A CA2227141A1 CA 2227141 A1 CA2227141 A1 CA 2227141A1 CA 002227141 A CA002227141 A CA 002227141A CA 2227141 A CA2227141 A CA 2227141A CA 2227141 A1 CA2227141 A1 CA 2227141A1
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CA
Canada
Prior art keywords
fuel
platinum group
trap
diesel
group metal
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.)
Abandoned
Application number
CA002227141A
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English (en)
Inventor
Jeremy D. Peter-Hoblyn
James M. Valentine
Barry N. Sprague
W. Robert Epperly
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.)
Clean Diesel Technologies Inc
Original Assignee
Individual
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
Priority claimed from US08/514,978 external-priority patent/US6003303A/en
Application filed by Individual filed Critical Individual
Publication of CA2227141A1 publication Critical patent/CA2227141A1/fr
Abandoned legal-status Critical Current

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    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
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  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Catalysts (AREA)

Abstract

Les procédés de l'invention permettent de réduire les émissions toxiques des moteurs Diesel en utilisant une combinaison de dispositifs mécaniques et d'additifs de carburant. Dans un mode de réalisation, on parvient à diminuer les émissions Diesel d'oxyde azoté (No¿x?) et de matières particulaires, en même temps que les gaz d'hydrocarbures et le monoxyde de carbone, en associant le recyclage des gaz d'échappement et la modification du système de distribution à un piège de matières particulaires et une composition de catalyseur métallique du groupe des platines. Dans un autre mode de réalisation, on emploie une composition de catalyseur polymétallique, comprenant l'association d'une composition de catalyseur métallique du groupe des platines et d'au moins une composition auxiliaire de métal catalyseur, notamment le cérium ou le cuivre, pour fournir du métal catalyseur au système d'échappement constitué d'un piège Diesel et pour abaisser le point d'équilibre du piège de matières particulaires (température à laquelle la vitesse de remplissage du piège est égale à la vitesse de régénération) tout en diminuant également les émissions de monoxyde de carbone et d'hydrocarbures non brûlés. Les données destinées aux catalyseurs de platine, de cuivre et de cérium permettent de fixer les doses utiles. Des expériences mettent également en évidence le maintien sélectif de la faible oxydation de SO¿2? en SO¿3?.
CA002227141A 1995-07-18 1996-07-18 Procedes permettant de diminuer les emissions toxiques d'un moteur diesel Abandoned CA2227141A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US50390995A 1995-07-18 1995-07-18
US08/503,909 1995-07-18
US08/514,978 US6003303A (en) 1993-01-11 1995-08-14 Methods for reducing harmful emissions from a diesel engine
US08/514,978 1995-08-14

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CA2227141A1 true CA2227141A1 (fr) 1997-02-06

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CA002227141A Abandoned CA2227141A1 (fr) 1995-07-18 1996-07-18 Procedes permettant de diminuer les emissions toxiques d'un moteur diesel

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EP (1) EP0854903A4 (fr)
AU (1) AU6548996A (fr)
CA (1) CA2227141A1 (fr)
WO (1) WO1997004045A1 (fr)

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EP0854903A1 (fr) 1998-07-29
MX9800511A (es) 1998-05-31
AU6548996A (en) 1997-02-18
EP0854903A4 (fr) 1999-04-21

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