西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (2): 75-79.DOI: 10.3863/j.issn.1000-2634.2006.02.020

• 油气化学工程与化工 • 上一篇    下一篇

不同分子筛上正辛烷反应性能的研究

柯明1 陈彦广1 黄勇2 李可伟1 宋昭峥1 蒋庆哲1
  

  1. (1.中国石油大学重质油国家重点实验室,北京 昌平 102249;2.南昌市技术学校,江西南昌330008)
  • 收稿日期:2005-04-11 修回日期:1900-01-01 出版日期:2006-04-20 发布日期:2006-04-20
  • 通讯作者: 柯明

RESEARCH OF THE REACTIVE PERFORMANCE OF N-OCTANE ON DIFF'ERENT ZEOLITE CATALYSTS

KE Ming1 CHEN Yan-guang1 HUANG Yong 1 et al.

  

  1. (University of Petroleum,Beijing 102249,China)
  • Received:2005-04-11 Revised:1900-01-01 Online:2006-04-20 Published:2006-04-20
  • Contact: KE Ming

摘要: 以正辛烷为模型化合物,在连续微型反应器装置一上考察了负载金属Ni的HzsM-5、HFER、SAPO-11、Hp和HY一系列分子筛催化剂的异构化和芳构化性能。试验到果表明,S议Al比不同而孔结构相同的N训HZSM-5具有相近的反应产物分布,液收和lI$氢异构化选择性随着S“Al比的增大而增加;孔径越大,分子筛的异构化和芳构化选择性越高,N订HY催化剂的异构化和芳构化选择性分别为41.83%和3.4%。高S订Al比的N议HzSM-5催化剂具有较高的
反应活性和抗结焦能力,同时具有相时较好的异构化和芳构化性能。

关键词: 分子筛, 异构化, 芳构化, 正辛烷

Abstract: The hydroisomerization and aromatization properties of a se-ries of different zeolite catalysts, primary Ni/HZSM-5,Ni/HFER, Ni/SAPO-11,Ni/Hpand Ni/HY were compared in a micro-reactor by using of n-octane as probing molecular. Re-sups show that Ni/HZSM-5 zeolite with the same pore structures
have the approximate product distribution, with the increase of Si/Al ratio, the liquid product yield and hydroisomerization se-lectivity have been improved. The large pore zeolite have more superior isomeric product selectivity than medium pore and small pore zeolite, the isomeric and aromatic selectivity of Ni/HY cat-alyst are 41. 83% and 3. 4% respectively. However, the Ni/
HZSM-5 catalyst with a higher Si/Al ratio has higher activity and excellent capability to retard the formation of coke, at the same time it has the optimum isomerization and aromatization performance.

Key words: zeolite, isomerization, aromatization, n-octane

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