fulltext.study @t Gmail

The influence of C1 and C2 organic reducing agents on catalytic properties of Co(II)-single site BEA zeolite in SCR of NO

Paper ID Volume ID Publish Year Pages File Format Full-Text
55273 47046 2012 6 PDF Available
Title
The influence of C1 and C2 organic reducing agents on catalytic properties of Co(II)-single site BEA zeolite in SCR of NO
Abstract

CoSiBEA zeolite with 0.9 wt.% Co is prepared in acidic (pH = 2.5) condition by a two-step postsynthesis method which allows to incorporate cobalt into framework zeolite as isolated tetrahedral Co(II) species, as evidenced by XRD and diffuse reflectance UV–vis. As obtained Co(II)-single site zeolite catalyst with isolated and framework Co centres are active in SCR of NO process with C2 (ethanol and ethylene) reducing agents, with selectivity toward N2 exceeding 90% in the temperature range from 575 to 675 K for maximum NO conversion about 70 and 65% at 625 K for ethanol and ethylene, respectively. In contrast, this catalyst is much less active with C1 (methanol and methane) reducing agents, with maximum selectivity toward N2 not exceeding 22% with methanol and 18% with methane for maximum NO conversion of 20 and 18%, respectively.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (226 K)Download as PowerPoint slideHighlights► Two-step postsynthesis method allows control the incorporation of cobalt into framework of BEA zeolite. ► Cobalt is incorporated as isolated tetrahedral Co(II) species. ► The Co(II)-single site CoSiBEA zeolite catalyst with isolated and framework Co centres are active in SCR of NO process with C2 (ethanol and ethylene) reducing agents.

Keywords
Cobalt; SiBEA; NO; SCR; Methanol; Methane; Ethanol; Ethylene
First Page Preview
The influence of C1 and C2 organic reducing agents on catalytic properties of Co(II)-single site BEA zeolite in SCR of NO
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 191, Issue 1, 15 September 2012, Pages 32–37
Authors
, , ,
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