期刊
FUEL PROCESSING TECHNOLOGY
卷 91, 期 5, 页码 449-455出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2009.12.003
关键词
ZSM-5 zeolite; ZSM-11 zeolite; 1-hexene; Aromatization; Isomerization
资金
- National Natural Science Foundation of China [20773120, 20903088]
- National Basic Research Program of China [2009CB623501]
ZSM-5 and ZSM-11 zeolites with high crystallinity are synthesized and tested in the aromatization and isomerization reactions of 1-hexene at 370 degrees C in a continuous flow fixed bed. The results indicate that ZSM-5 and ZSM-11 zeolites possess similar acid site amount and strength, and most of the acid sites belong to Bronsted acid. When the ZSM-5 and ZSM-11 zeolites were used as catalysts, the aromatics selectivity over ZSM-11 catalyst was higher than that over ZSM-5 catalyst in contrast to i-paraffins selectivity, maybe attributed to that the C-7 and C-8 aromatics have an easier exit from the ZSM-11 zeolite. Moreover, the decrease of particle size can present superior aromatics selectivity and less i-paraffins selectivity in the aromatization and isomerization of 1-hexene over the ZSM-11 catalyst. (C) 2009 Elsevier B.V. All rights reserved.
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