MX9800511A - Metodo para reducir las emisiones dañinas que provienen de motores diesel. - Google Patents

Metodo para reducir las emisiones dañinas que provienen de motores diesel.

Info

Publication number
MX9800511A
MX9800511A MX9800511A MX9800511A MX9800511A MX 9800511 A MX9800511 A MX 9800511A MX 9800511 A MX9800511 A MX 9800511A MX 9800511 A MX9800511 A MX 9800511A MX 9800511 A MX9800511 A MX 9800511A
Authority
MX
Mexico
Prior art keywords
emissions
trap
diesel
platinum
catalyst composition
Prior art date
Application number
MX9800511A
Other languages
English (en)
Other versions
MXPA98000511A (es
Inventor
Jeremy D Peter-Hoblyn
James M Valentine
Barry N Sprague
W Robert Epperly
Original Assignee
Clean Diesel Tech Inc
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 Clean Diesel Tech Inc filed Critical Clean Diesel Tech Inc
Publication of MX9800511A publication Critical patent/MX9800511A/es
Publication of MXPA98000511A publication Critical patent/MXPA98000511A/es

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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
    • F01N3/02—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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • 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)
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Abstract

Las emisiones de contaminantes de los motores diesel se reducen por una combinacion de dispositivos mecánicos y aditivos para combustibles. En una serie de modalidades, las emisiones diesel de NOx y de partículas se reducen simultáneamente con los hidrocarburos gaseosos y el monoxido de carbono, mediante el uso combinado de la recirculacion del gas de escape o la modificacion del tiempo del motor, con una trampa de partículas y una composicion de catalizador de metales del grupo del platino. En otra modalidad se emplea una composicion de catalizador de varios metales que comprende una combinacion de la composicion de catalizador de metal platino y por lo menos una composicion auxiliar de metal catalizador, en especial de cerio o cobre, para proporcionar un metal catalizador hacia el sistema de escape que incluye una trampa diesel para disminuir el punto de equilibrio de la trampa de partículas (la temperatura a la cual la tasa de cargado de la trampa iguala a la tasa de regeneracion), mientras que también se disminuyen las emisiones de monoxido de carbono y de hidrocarburos no quemados. La informacion para los catalizadores de platino, cobre y cerio establece cantidades eficaces. Las pruebas muestran también el mantenimiento selectivo de la baja oxidacion de SO2 para dar SO3.
MXPA/A/1998/000511A 1995-07-18 1998-01-16 Metodo para reducir las emisiones dañinas queprovienen de motores diesel MXPA98000511A (es)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US50390995A 1995-07-18 1995-07-18
US503909 1995-07-18
US503,909 1995-07-18
US08/514,978 US6003303A (en) 1993-01-11 1995-08-14 Methods for reducing harmful emissions from a diesel engine
US08514978 1995-08-14
PCT/US1996/011908 WO1997004045A1 (en) 1995-07-18 1996-07-18 Methods for reducing harmful emissions from a diesel engine

Publications (2)

Publication Number Publication Date
MX9800511A true MX9800511A (es) 1998-05-31
MXPA98000511A MXPA98000511A (es) 1998-10-23

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EP0854903A4 (en) 1999-04-21
CA2227141A1 (en) 1997-02-06
WO1997004045A1 (en) 1997-02-06
AU6548996A (en) 1997-02-18
EP0854903A1 (en) 1998-07-29

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