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异丁烷在Cr2(MOO4)3,Fe2(MoO4)3催化剂上的无氧脱氢与氧化脱氢
引用本文:黄彦,彭少逸.异丁烷在Cr2(MOO4)3,Fe2(MoO4)3催化剂上的无氧脱氢与氧化脱氢[J].分子催化,1997,11(3):221-225.
作者姓名:黄彦  彭少逸
作者单位:吉林大学化学系催化研究室,中国科学院山西煤炭化学研究所
基金项目:国家自然科学基金,吉林化学工业公司,长春应用科学研究中心资助
摘    要:研究了Cr2(MoO4)3、Fe2(mO4)3、对异丁烷无氧脱氢与氧化氢的催化性能,在无氧脱氧反应中,催化剂的表面酸性既有利于异丁烷活性生成异丁烯,又易引起裂和异构化等副反应,在氧化脱氢反应中,异丁烯选择性较低,催化剂的表面酸中心对反应中间体的吸附将导致深度氧化。

关 键 词:脱氢  异丁烷  钼酸铬  钼酸铁  催化剂

Dehydrogenation and Oxidative Dehydrogenation of Isobutane over Chromium Molybdate and Iron Molybdate
HUANG Yan,WANG Guojia,YU Jianfeng,YANG Hongmao,WU Tonghao,JIANG Yuzi.Dehydrogenation and Oxidative Dehydrogenation of Isobutane over Chromium Molybdate and Iron Molybdate[J].Journal of Molecular Catalysis (China),1997,11(3):221-225.
Authors:HUANG Yan  WANG Guojia  YU Jianfeng  YANG Hongmao  WU Tonghao  JIANG Yuzi
Institution:HUANG Yan WANG Guojia YU Jianfeng YANG Hongmao WU Tonghao JIANG Yuzi (Department of Chemistry Jilin University Changchun 130023) PENG Shaoyi (Institute of Coal Chemistry The Chinese Academy of Sciences Taiyuan 030001)
Abstract:Catalytic performances of Cr 2(MoO 4) 3 and Fe 2(MoO 4) 3 catalysts in O 2 free dehydrogenation and oxidative dehydrogenation of isobutane were studied. The acidic property of both catalysts favored not only the activation of isobutane to convert into isobutene but also the occurence of side reactions such as cracking and skeletal isomerization in O 2 free dehydrogenation. The selectivity to isobutene was very low in oxidative dehydrogenation. The adsorption of reaction intermediates by acidic sites in catalysts surface may cause deep oxidation.
Keywords:Dehydrogenation  Oxidative dehydrogenation  Isobutane  Chromium molybdate  Iron molybdate  
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