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

被引：0
|
作者：
R. Byggningsbacka
N. Kumar
L.‐E. Lindfors
机构：
[1] Faculty of Chemical Engineering,Laboratory of Industrial Chemistry
[2] Åbo Akademi University,undefined
来源：
Catalysis Letters | 1999年 / 58卷
关键词：
ZSM‐22; skeletal isomerization; isobutene production; acid strength;
D O I：
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学科分类号：
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.
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页码：231 / 234
页数：3
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