期刊
APPLIED CATALYSIS A-GENERAL
卷 259, 期 2, 页码 261-267出版社
ELSEVIER
DOI: 10.1016/j.apcata.2003.09.040
关键词
NOx reduction; selective catalytic reduction of NO; pillared clay catalysts; Pd-based catalyst
The catalytic reduction of NO, with hydrogen and carbon monoxide in the presence of excess oxygen was studied over Pd-based catalysts with various pillared clays (PILC) as the support. The results showed that the Ti-PILC-supported Pd catalyst gave high NO conversions and the highest N-2 product selectivity (compared to known catalysts) at low temperatures. For example, the N-2 selectivity at 140 degreesC was 90% for Pd/Ti-PILC catalyst while that for the Pd/TiO2/Al2O3 catalyst was 50%. The effects of feed gas composition, CO concentration and H2O/SO2 were also studied. (C) 2003 Elsevier B.V. All rights reserved.
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