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The simultaneous selective catalytic reduction of N2O and NO on Co–Na–MOR using CH4 alone as the reducing agent in the presence of excess O2

Paper ID Volume ID Publish Year Pages File Format Full-Text
55282 47046 2012 3 PDF Available
Title
The simultaneous selective catalytic reduction of N2O and NO on Co–Na–MOR using CH4 alone as the reducing agent in the presence of excess O2
Abstract

Co–Na–MOR was prepared by ion-exchange of Na–MOR with an aqueous solution of cobalt acetate (Co–Na–MOR–9.2–104, Si/Al = 9.2, and cobalt-exchange percentage = 104). We studied the catalytic activity of this sample (i) for the SCR of N2O, (ii) for the SCR of NO, and (iii) for the simultaneous SCR of N2O and NO, where SCR stands for “Selective Catalytic Reduction with CH4 in the presence of O2”. Catalytic measurements were performed in a flow apparatus with GC analysis of reactants and products.Results show that Co–Na–MOR is active and selective (i) in the SCR of N2O, (ii) in the SCR of NO and (iii) in the simultaneous SCR of N2O and NO. The NO conversion in the simultaneous SCR of NO and N2O equalled that in the SCR of NO. Analogously, the N2O conversion in the simultaneous SCR of NO and N2O equalled that in the SCR of N2O. These findings strongly suggest that on Co–Na–MOR the simultaneous SCR of NO and N2O consists of two independent reactions: the SCR of NO, and the SCR of N2O.We conclude that Co–Na–MOR is a potential catalyst in the process causing the simultaneous SCR of N2O and NO, using CH4 alone as the reducing agent, in the presence of excess O2.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (200 K)Download as PowerPoint slideHighlights► Co–mordenite is active for the SCR of NO with CH4. ► Co–mordenite is active for the SCR of N2O with CH4. ► Co–mordenite is active for the simultaneous SCR of N2O and NO with CH4.

Keywords
N2O SCR with CH4; NO SCR with CH4; Simultaneous N2O and NO SCR with CH4; Co–MOR
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The simultaneous selective catalytic reduction of N2O and NO on Co–Na–MOR using CH4 alone as the reducing agent in the presence of excess O2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 191, Issue 1, 15 September 2012, Pages 87–89
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us