催化学报

催化学报 ›› 2007, Vol. 28 ›› Issue (3): 201-204.

• 研究论文 • 上一篇    下一篇

Pt改性分子筛催化剂上丙烷与苯的烷基化反应

黄学庆1,2,3,孙新德1,朱书魁1,刘中民1   

  1. 1 中国科学院大连化学物理研究所, 辽宁大连 116023; 2 中国科学院研究生院, 北京 100049;3 大庆油田有限责任公司, 黑龙江大庆 163000
  • 收稿日期:2007-03-25 出版日期:2007-03-25 发布日期:2007-03-25

Alkylation of Propane with Benzene over Pt-Modified Zeolites

HUANG Xueqing1,2,3, SUN Xinde1, ZHU Shukui1, LIU Zhongmin1   

  1. 1 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3 Daqing Oilfield Company Limited, Daqing 163000, Heilongjiang, China
  • Received:2007-03-25 Online:2007-03-25 Published:2007-03-25

PDF

720

被引次数

3

摘要： 研究了不同分子筛负载的Pt催化剂上丙烷与苯的烷基化反应. 结果表明, Pt/HZSM-5具有较好的催化性能. 在0～0.3%范围内提高Pt负载量可以提高催化剂的催化活性和生成C9以及C10+芳烃的选择性,降低非芳烃产物的选择性. 较低的反应温度、较高的苯/丙烷摩尔比和较高的空速有利于烷基芳烃的生成.

关键词: 铂, ZSM-5, 丙烷, 苯, 烷基化

Abstract: The alkylation of propane with benzene over Pt catalysts supported on different zeolites was studied. Pt/HZSM-5 shows much higher selectivity for alkylbenzene than other catalysts. With increasing Pt loading from 0 to 0.3%, the conversion of propane and the selectivity for C9 and C10+ aromatics increase, whereas the selectivity for non-aromatics decreases. The effects of the reaction temperature, space velocity, and benzene/propane molar ratio on the alkylation of propane with benzene over Pt/HZSM-5 zeolite were investigated. Low reaction temperature, high space velocity, and high benzene/propane molar ratio favor the formation of alkylbenzene.

Key words: platinum, ZSM-5 zeolite, propane, benzene, alkylation