Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/34708

Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene

Authors Lu, Guang
Li, Xinyong
Qu, Zhenping
Zhao, Qidong
Zhao, Ling
Chen, Guohua View this author's profile
Issue Date 2011
Source Chemical engineering journal , v. 168, (3), April 2011, p. 1128-1133
Summary Cu-ion-exchanged titanium-pillared clays (Cu-Ti-PILCs) were prepared using ion exchange strategy under different pH values and used for selective catalytic reduction (SCR) of NO by propylene. The influences of pH value on the catalytic performance and the nature of copper species were investigated. The results of activity test showed that the highest conversion of NO into N(2) and the low-temperature activity increased with the increase of pH value up to 6, and then decreased with the further increase of pH value. The characterization results showed that the copper species were well dispersed over the prepared catalysts, and the different ratios of Cu(2+)/copper species existed over the studied catalysts. The Cu(2+) species can enhance the low-temperature activity and the highest conversion of NO into N(2). Moreover, the highest conversion of NO into N(2) and low-temperature activity increased with the increase of the Cu(2+)/copper species rate. (C) 2011 Elsevier BM. All rights reserved.
Subjects
Cu
SCR
TPR
ISSN 1385-8947
Language English
Format Article
Access View full-text via DOI
View full-text via Web of Science
View full-text via Scopus
Find@HKUST