Comparison of the catalytic properties of Al-ZSM-22 and Fe-ZSM-22 in the skeletal isomerization of 1-butene

被引：9
|
作者：
Byggningsbacka, R [1 ]
Kumar, N [1 ]
Lindfors, LE [1 ]
机构：
[1] Abo Akad Univ, Fac Chem Engn, Lab Ind Chem, FIN-20500 Turku, Finland
来源：
CATALYSIS LETTERS | 1999年 / 58卷 / 04期
关键词：
ZSM-22; skeletal isomerization; isobutene production; acid strength;
D O I：
10.1023/A:1019006707261
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The catalytic activities of Al-ZSM-22 (Al in the framework) and Fe-ZSM-22 (Fe in the framework) were compared in the skeletal isomerization of 1-butene to isobutene. The catalysts synthesized in the laboratory were characterized by means of XRD, FTIR spectroscopy, SEM and surface area measurements. The activity of the zeolites was investigated using a fixed-bed microreactor system. Al-ZSM-22 demonstrated higher activity in 1-butene transformation compared to Fe-ZSM-22, while the selectivity to isobutene, on the other hand, was higher over Fe-ZSM-22. Coke formation was monitored using a microbalance and the results showed that the weight gain of Fe-ZSM-22 was slightly higher compared to Al-ZSM-22.
引用
收藏
页码：231 / 234
页数：4
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