Volume 134, Issue 8 e202113077
Forschungsartikel

Enhanced Selectivity and Stability of Finned Ferrierite Catalysts in Butene Isomerization

Dr. Heng Dai

Dr. Heng Dai

Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204 USA

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Choongsze Lee

Choongsze Lee

Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455 USA

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Wen Liu

Wen Liu

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Dalian, 116023 China

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Dr. Taimin Yang

Dr. Taimin Yang

Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden

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Jakob Claret

Jakob Claret

Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204 USA

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Prof. Xiaodong Zou

Prof. Xiaodong Zou

Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden

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Prof. Paul J. Dauenhauer

Corresponding Author

Prof. Paul J. Dauenhauer

Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455 USA

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Prof. Xiujie Li

Corresponding Author

Prof. Xiujie Li

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Dalian, 116023 China

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Prof. Jeffrey D. Rimer

Corresponding Author

Prof. Jeffrey D. Rimer

Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204 USA

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First published: 07 December 2021
Citations: 2

Abstract

Designing zeolite catalysts with improved mass transport properties is crucial for restrictive networks of either one- or two-dimensional pore topologies. Here, we demonstrate the synthesis of finned ferrierite (FER), a commercial zeolite with two-dimensional pores, where protrusions on crystal surfaces behave as pseudo nanoparticles. Catalytic tests of 1-butene isomerization reveal a 3-fold enhancement of catalyst lifetime and an increase of 12 % selectivity to isobutene for finned samples compared to corresponding seeds. Electron tomography was used to confirm the identical crystallographic registry of fins and seeds. Time-resolved titration of Brønsted acid sites confirmed the improved mass transport properties of finned ferrierite compared to conventional analogues. These findings highlight the advantages of introducing fins through facile and tunable post-synthesis modification to impart material properties that are otherwise unattainable by conventional synthesis methods.

Conflict of interest

The authors declare no conflict of interest.

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