期刊
JOURNAL OF CATALYSIS
卷 193, 期 2, 页码 248-254出版社
ACADEMIC PRESS INC
DOI: 10.1006/jcat.2000.2896
关键词
sulfuric acid; catalyst; iron; Fe-MCM-41; sulfur dioxide oxidation; sulfuric acid; mesoporous oxide
The catalytic properties of Fe-MCM-41 and other iron-based catalyst materials for sulfur dioxide oxidation in highly concentrated gases have been characterized for the first time. Independent of whether the catalysts were synthesized by incipient wetness impregnation, solid-state impregnation, or in situ synthesis, the activity is found to be substantially higher than that observed for an industrial iron-on-silica reference catalyst. Although some activity is lost during the formation of the catalysts, Fe-MCM-41 catalysts are remarkably stable at temperatures of up to 1023 K. Fe-MCM-41 catalysts appear to be efficient for the conversion of highly concentrated gases that cannot be processed by conventional vanadiumbased catalysts due to thermal breakdown. (C) 2000 Academic Press.
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