METHOD AND APPARATUS FOR REDUCING NOX WITH FIRST AND SECOND CATALYSTS

A method and apparatus for catalytically processing a gas stream passing therethrough to reduce the presence of NOx 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 rang...

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Bibliographic Details
Main Authors KALYANARAMAN, MOHAN, SOCHA, RICHARD, F, PARK, PAUL, W, EL-MALKI, EL-MEKKI, VARTULI, JAMES, C
Format Patent
LanguageEnglish
French
German
Published 05.03.2008
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:A method and apparatus for catalytically processing a gas stream passing therethrough to reduce the presence of NOx 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.
Bibliography:Application Number: EP20060735224