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CrOx–CeO2 binary oxide as a superior catalyst for NO reduction with NH3 at low temperature in presence of CO

Paper ID Volume ID Publish Year Pages File Format Full-Text
51045 46827 2010 5 PDF Available
Title
CrOx–CeO2 binary oxide as a superior catalyst for NO reduction with NH3 at low temperature in presence of CO
Abstract

CrOx/CeO2 catalysts supported on porous silica sphere have been prepared and characterized by N2-BET, XRD, XPS, H2-TPR and NH3-TPD methods. The effects of the molar ratio between CrOx and CeO2 in the catalysts for NOx selective catalytic reduction with ammonia were studied. It was indicated by the results that high NOx conversion (98%) could be obtained by the catalyst with proper Cr/Ce molar ratio (25/75) at 150 °C (W/F = 0.25 g s/cm3). The result might be contributed to the redox property and NH3-chelate ability of the CrOx–CeO2 binary oxide in the catalysts.

Keywords
Selective catalytic reduction; Low temperature; CeO2; Nitrogen oxides
First Page Preview
CrOx–CeO2 binary oxide as a superior catalyst for NO reduction with NH3 at low temperature in presence of CO
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 9, 30 April 2010, Pages 829–833
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis