Catalysts for lean burn engine exhaust abatement

Patent · Wed Jan 01 00:00:00 EST 2003

OSTI ID:875020

Ott, Kevin C ^[1]; Clark, Noline C ^[2]; Paffett, Mark T ^[1]

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1. Los Alamos, NM
2. Jemez Springs, NM

The present invention provides a process for catalytically reducing nitrogen oxides in an exhaust gas stream containing nitrogen oxides and a reductant material by contacting the gas stream under conditions effective to catalytically reduce the nitrogen oxides with a catalyst comprising a aluminum-silicate type material and a minor amount of a metal, the catalyst characterized as having sufficient catalytic activity so as to reduce the nitrogen oxides by at least 60 percent under temperatures within the range of from about 200.degree. C. to about 400.degree. C.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, NM)
• Patent Number(s): US 6514470
• OSTI ID: 875020
• Country of Publication: United States
• Language: English

Related Subjects

catalysts
lean
burn
engine
exhaust
abatement
provides
process
catalytically
reducing
nitrogen
oxides
gas
stream
containing
reductant
material
contacting
conditions
effective
reduce
catalyst
comprising
aluminum-silicate
type
minor
amount
metal
characterized
sufficient
catalytic
activity
60
percent
temperatures
range
200degree
400degree
gas stream
engine exhaust
nitrogen oxide
lean burn
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