Catalytic Oxidative Dehydrogenation of Isobutane over Zinc Molybdate

Abstract

Abstract: The catalytic performances of zinc molybdate for oxidative dehydrogenation of isobutane are reported. The effects of N₂, water steam and the volume ratio of isobutane/O₂ in feed gas are studied. The selectivity to isobutene increases with the increasing of isobutane/O₂ ratio, but the conversion of isobutane decreases. The steam added in feed gas can improve the isobutene selectivity while N₂ in feed gas shows an unfavorable influence. The acid sites on the surface of zinc molybdate are mainly weak ones, which can promote the oxidative dehydrogenation of isobutane into isobutene.

Key words: Isobutane, Oxidative dehydrogenation, Zinc molybdate, Isobutene

CLC Number:

O643.32

TrendMD:

HUANG Yan, WANG Guo-Jia, YU Jian-Feng, YANG Hong-Mao, WU Tong-Hao, PENG Shao-Yi. Catalytic Oxidative Dehydrogenation of Isobutane over Zinc Molybdate[J]. Chem. J. Chinese Universities, 1998, 19(1): 116.

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Catalytic Oxidative Dehydrogenation of Isobutane over Zinc Molybdate

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