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化学学报
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化学学报 ›› 1980, Vol. 38 ›› Issue (2): 191-195. 上一篇    下一篇

研究简报

不同大小晶粒的ZSM-5沸石的合成及其催化活性

秦关林, 武传昌   

  1. 南京大学化学系催化教研室
  • 投稿日期:1977-11-14 发布日期:2013-06-03

SYNTHESIS AND CATALYTIC ACTIVITY OF ZSM-5 ZEOLITE OF DIFFERENT CRYSTALLITE SIZES

QIN GUAN-LIN, WU GHUAN-CHANG   

  1. Division of Catalysis, Chemistry Department, Nanjing University
  • Received:1977-11-14 Published:2013-06-03

PDF

609

被引次数

6

ZSM-5沸石是一种高硅铝比的新型沸石分子筛.它是一种高效、多能的形状选择性(shapeselective)催化剂,可应用于异构化、烷基化、歧化、芳构化、选择性裂化及石油油品改质等一系列反应,特别在二甲苯异构化、乙烯和苯反应制取乙苯以及甲苯歧化这三个反应上更有着突出的性能[1].

Using different crystallization conditions ZSM-5 zeohte of different crystallite sizes (~1μ and≤0.1μ) was synthesized from the reaction mixture of water glass, aluminum sulphate and ethyl (or n-butyl) amine. It was shown that ZSM-5 crystallites of these two sizes have similar adsorptive capacity, but the smaller crystallites(≤0.1μ) possess higher catalytic activity than the larger ones (~10μ) in the liquid-phase isomerization of gylene.