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ZSM-22分子筛的合成、表征及烷基化性能研究

王宏浩 ,  刘粟侥 ,  张怀科 ,  郭大光 ,  马骏 ,  任杰 ,  王海彦

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引用本文: 王宏浩, 刘粟侥, 张怀科, 郭大光, 马骏, 任杰, 王海彦. ZSM-22分子筛的合成、表征及烷基化性能研究[J]. 燃料化学学报, 2016, 44(08): 1010-1016. shu
Citation:  WANG Hong-hao, LIU Su-yao, ZHANG Huai-ke, GUO Da-guang, MA Jun, REN Jie, WANG Hai-yan. Synthesis and characterization of ZSM-22 zeolites and their catalytic performance in alkylation reaction[J]. Journal of Fuel Chemistry and Technology, 2016, 44(08): 1010-1016. shu

ZSM-22分子筛的合成、表征及烷基化性能研究

  • 1.

    1. 辽宁石油化工大学 化学化工与环境学部, 辽宁 抚顺 113001;

  • 2.

    2. 中国科学院山西煤炭化学研究所 煤间接液化国家工程实验室, 山西 太原 030001;

  • 3.

    3. 中国科学院大学, 北京 100049;

  • 4.

    4. 中科合成油技术有限公司, 北京 101407

    • 通讯作者: 任杰
摘要: 通过不同合成方法制备聚束状、粗棒状和细棒状ZSM-22分子筛，采用XRD、SEM、BET、MAS NMR、NH3-TPD及Py-FTIR等表征手段对分子筛的形貌、织构、硅铝配位环境及酸性进行研究。以甲苯-甲醇烷基化制备对二甲苯为探针反应，考察不同形貌ZSM-22分子筛催化剂的催化性能。结果表明，不同形貌ZSM-22分子筛的晶胞参数、织构、硅铝配位环境及酸性等存在明显差异。聚束状ZSM-22分子筛由于各束之间的相互作用导致Si（4Si）配位结构发生变化，Al原子的嵌入导致T3和T4比例较高、T2较少，并表现出更多的L酸中心。在380℃反应温度下，聚束状ZSM-22分子筛催化剂在甲苯-甲醇烷基化反应转化率为16.7%时，对二甲苯选择性达到76.1%。

English

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  • 收稿日期:  2016-03-30
  • 网络出版日期:  2016-05-06
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