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Design of micro-mesoporous zeolite catalysts for alkylation

机译：烷基化微介孔沸石催化剂的设计

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摘要

Hierarchical zeolite Y was hydrothermally synthesized using ionic liquid 1-methyl-3-[3'-(trimethoxysilyl)propyl]imidazolium chloride, which was added into the conventional synthesis composition for crystalline microporous aluminosilicate as a mesopore-directing agent. An extremely short diffusion path length and abundant exposed acid sites in the hierarchical zeolite Y made it suitable for the catalytic transformation of bulky molecules. Then the catalytic performance of hierarchical zeolites Y was investigated using the alkylation of o-xylene with styrene. The ionic liquid directed hierarchical zeolite Y exhibited a remarkably high catalytic activity and long catalytic lifetime for the production of 1-phenyl-1-xylylethane via alkylation reaction, as compared with that of solely microporous zeolite Y. The distinct catalytic performances of the novel hierarchical zeolite Y could be attributed to the enhancement of medium strong acid amount and its micro-mesoporous structural properties which are favorable for the fast diffusion of products.
机译：使用离子液体1-甲基-3- [3' - （三甲氧基甲硅烷基）丙基]咪唑鎓氯化物加入分层沸石Y，将其加入到常规的合成组合物中，用于结晶微孔硅铝酸盐作为中孔引导剂。层次沸石Y中的极短的扩散路径长度和丰富的暴露酸位点使其适用于庞大分子的催化转化。然后使用苯乙烯的o-二甲苯的烷基化研究了等级沸石Y的催化性能。离子液体定向等级沸石Y在单独微孔沸石Y的比较中，通过烷基化反应表现出极高的高催化活性和长催化寿命，用于通过烷基化反应产生1-苯基-1-苯基乙烷。新颖的等级的不同催化性能沸石Y可归因于培养基强酸量的增强及其微介孔结构性能，这有利于产品的快速扩散。

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  • 来源
    《RSC Advances》 |2016年第56期|共10页
  • 作者

    Fu Xiaoqin; Sheng Xiaoli; Zhou Yuming; Fu Zhiwei; Zhao Shuo; Bu Xiaohai; Zhang Chao;

  • 作者单位

    Southeast Univ Jiangsu Optoelect Funct Mat &

    Engn Lab Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    Southeast Univ Jiangsu Optoelect Funct Mat &

    Engn Lab Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    Southeast Univ Jiangsu Optoelect Funct Mat &

    Engn Lab Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    MEP Nucl &

    Radiat Safety Ctr Beijing 100082 Peoples R China;

    Southeast Univ Jiangsu Optoelect Funct Mat &

    Engn Lab Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    Southeast Univ Jiangsu Optoelect Funct Mat &

    Engn Lab Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    Southeast Univ Jiangsu Optoelect Funct Mat &

    Engn Lab Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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