Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 284, Issue 2, Pages 606-613Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2004.10.048
Keywords
catalysis; dehydration; ethanol; iron; manganese
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The aim of this work is to study catalytic ethanol dehydration using different prepared catalysts, which include Fe2O3, W2O3, and calcined physical mixtures of both ferric and manganese oxides with alumina and/or silica gel. The physicochemical properties of these catalysts were investigated via X-ray powder diffraction (XRD), acidity measurement, and nitrogen adsorption-desorption at -196 degrees C. The catalytic activities of such catalysts were tested through conversion of ethanol at 200-500 degrees C using a catalytic flow system operated under atmospheric pressure. The results obtained indicated that the dehydration reaction on the catalyst relies on surface acidity, whereas the ethylene production selectivity depends on the catalyst chemical constituents. (c) 2004 Elsevier Inc. All rights reserved.
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