高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (1): 116.

• 论文 • 上一篇    下一篇

异丁烷在钼酸锌上的催化氧化脱氢

黄彦1, 王国甲1, 于剑锋1, 杨洪茂1, 吴通好1, 彭少逸2   

  1. 1. 吉林大学化学系催化研究室, 长春, 130023;
    2. 中国科学院山西煤炭化学研究所, 太原, 030001
  • 收稿日期:1996-12-12 出版日期:1998-01-24 发布日期:1998-01-24
  • 通讯作者: 王国甲
  • 作者简介:黄彦,男,28岁,博士研究生.
  • 基金资助:

    国家自然科学基金、长春应用化学研究中心和吉林化学工业公司联合资助课题.

Catalytic Oxidative Dehydrogenation of Isobutane over Zinc Molybdate

HUANG Yan1, WANG Guo-Jia1, YU Jian-Feng1, YANG Hong-Mao1, WU Tong-Hao1, PENG Shao-Yi2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001
  • Received:1996-12-12 Online:1998-01-24 Published:1998-01-24

摘要: 研究了钼酸锌对异丁烷氧化脱氢反应的催化作用,考察了原料气中烷氧体积比、N2及水蒸汽对反应结果的影响.提高反应原料气中的烷氧体积比能够提高异丁烯选择性,但也会降低异丁烷的转化率.原料气中加入N2不利于反应;而加入水蒸汽可提高异丁烯选择性.催化剂表面主要是弱酸中心,对反应有利.

关键词: 异丁烷, 氧化脱氢, 钼酸锌, 异丁烯

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

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