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Langmuir. 2005 Mar 1;21(5):1699-702.

Designing a capsule catalyst and its application for direct synthesis of middle isoparaffins.

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  • 1Department of Applied Chemistry, School of Engineering, Toyama University, Gofuku 3190, Toyama 930-8555, Japan.


A catalyst in the form of a capsule catalyst was prepared by coating HZSM5 membrane on a preshaped Co/SiO2 catalyst pellet. The capsule catalyst with HZSM5 membrane exhibited excellent selectivity for light hydrocarbon synthesis, especially for isoparaffin synthesis from syngas (CO + H2). Long-chain hydrocarbon formation was totally suppressed by the zeolite membrane. The modification of membrane and core catalyst significantly improved the catalytic properties of these new kinds of capsule catalysts.

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