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

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Abstract

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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Authors and Affiliations

  1. Laboratory of Industrial Chemistry, Faculty of Chemical Engineering, Åbo Akademi University, Biskopsgatan 8, FIN‐, 20500, Åbo, Finland

    R. Byggningsbacka, N. Kumar & L.‐E. Lindfors

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  1. R. Byggningsbacka
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  2. N. Kumar
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  3. L.‐E. Lindfors
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Byggningsbacka, R., Kumar, N. & Lindfors, L. Comparison of the catalytic properties of Al‐ZSM‐22 and Fe‐ZSM‐22 in the skeletal isomerization of 1‐butene. Catalysis Letters 58, 231–234 (1999). https://doi.org/10.1023/A:1019006707261

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