Abstract
Abstract V-containing catalysts supported on Al 2 O 3 , modified with varying amounts of ZrO 2 , were prepared by impregnation method. Dehydrogenation of ethylbenzene with CO 2 was run over these catalysts in a fixed-bed downflow stainless steel reactor. Compared with pure Al 2 O 3 support, a small amount of ZrO 2 in the support led to a significant increase in catalytic activity. Partial reduction of vanadium oxides and carbon deposition were the main reasons for the decreased catalytic activity.
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