fulltext.study @t Gmail

Multifunctional catalyst for de-NOx processes: The selective reduction of NOx by methane

Paper ID Volume ID Publish Year Pages File Format Full-Text
52855 46890 2007 5 PDF Available
Title
Multifunctional catalyst for de-NOx processes: The selective reduction of NOx by methane
Abstract

A multifunctional catalyst has been applied for the reduction of NOx by methane in excess of oxygen. The catalyst includes a heteropolyacid (HPW) and a noble metal (Pt) deposited on a ceria–zirconia mixed oxide. The presence of hydrogen is necessary for reducing NOx into N2 with methane. During several alternate cycles of NOx storage (2 min) and reduction (1 min), the average NOx reduction percentage into nitrogen was of ca. 60% with a constant storage efficiency of ca.70%. A coherent picture of the catalytic process emerged from two separated experimental tests: water gas shift and steam methane reforming reactions.

Keywords
NOx reduction; Multifunctional catalysts; Methane; HPW; Pt; Ceria–zirconia mixed oxides
First Page Preview
Multifunctional catalyst for de-NOx processes: The selective reduction of NOx by methane
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 400–404
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis