DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus for combination catalyst for reduction of NO.sub.x in combustion products

Abstract

A method and apparatus for catalytically processing a gas stream passing therethrough to reduce the presence of NO.sub.x therein, wherein the apparatus includes a first catalyst composed of a silver containing alumina that is adapted for catalytically processing the gas stream at a first temperature range, and a second catalyst composed of a copper containing zeolite located downstream from the first catalyst, wherein the second catalyst is adapted for catalytically processing the gas stream at a lower second temperature range relative to the first temperature range.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. Newtown, PA
  2. Schwenksville, PA
  3. Princeton, NJ
  4. Media, PA
  5. Peoria, IL
Issue Date:
Research Org.:
ExonMobil Research and Engineering Company (Annandale, NJ); Caterpillar Inc. (Peoria, IL
Sponsoring Org.:
USDOE
OSTI Identifier:
1014568
Patent Number(s):
7803338
Application Number:
US Patent Application 11/157,729
Assignee:
ExonMobil Research and Engineering Company (Annandale, NJ); Caterpillar Inc. (Peoria, IL)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Socha, Richard F, Vartuli, James C, El-Malki, El-Mekki, Kalyanaraman, Mohan, and Park, Paul W. Method and apparatus for combination catalyst for reduction of NO.sub.x in combustion products. United States: N. p., 2010. Web.
Socha, Richard F, Vartuli, James C, El-Malki, El-Mekki, Kalyanaraman, Mohan, & Park, Paul W. Method and apparatus for combination catalyst for reduction of NO.sub.x in combustion products. United States.
Socha, Richard F, Vartuli, James C, El-Malki, El-Mekki, Kalyanaraman, Mohan, and Park, Paul W. Tue . "Method and apparatus for combination catalyst for reduction of NO.sub.x in combustion products". United States. https://www.osti.gov/servlets/purl/1014568.
@article{osti_1014568,
title = {Method and apparatus for combination catalyst for reduction of NO.sub.x in combustion products},
author = {Socha, Richard F and Vartuli, James C and El-Malki, El-Mekki and Kalyanaraman, Mohan and Park, Paul W},
abstractNote = {A method and apparatus for catalytically processing a gas stream passing therethrough to reduce the presence of NO.sub.x therein, wherein the apparatus includes a first catalyst composed of a silver containing alumina that is adapted for catalytically processing the gas stream at a first temperature range, and a second catalyst composed of a copper containing zeolite located downstream from the first catalyst, wherein the second catalyst is adapted for catalytically processing the gas stream at a lower second temperature range relative to the first temperature range.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 28 00:00:00 EDT 2010},
month = {Tue Sep 28 00:00:00 EDT 2010}
}

Works referenced in this record:

Promotion effect of H2 on the low temperature activity of the selective reduction of NO by light hydrocarbons over Ag/Al2O3
journal, May 2003


Kinetic considerations of H2 assisted hydrocarbon selective catalytic reduction of NO over Ag/Al2O3
journal, April 2006