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

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....

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Bibliographic Details
Published in:Catalysis letters 1999-05, Vol.58 (4), p.231-234
Main Authors: BYGGNINGSBACKA, R, KUMAR, N, LINDFORS, L.-E
Format: Article
Language:English
Subjects:
Catalysis
Catalysts: preparations and properties
Chemical synthesis
Chemistry
Exact sciences and technology
General and physical chemistry
Iron
Isomerization
Microbalances
Selectivity
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zeolites
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Summary: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.
ISSN:1011-372X
1572-879X
DOI:10.1023/A:1019006707261