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Preparation of silicalite-1@Pt/alumina core–shell catalyst for shape-selective hydrogenation of xylene isomers

Paper ID Volume ID Publish Year Pages File Format Full-Text
49889 46770 2015 4 PDF Available
Title
Preparation of silicalite-1@Pt/alumina core–shell catalyst for shape-selective hydrogenation of xylene isomers
Abstract

•A silicalite-1@Pt/alumina catalyst was synthesized with a core–shell structure.•The developed core–shell catalyst combined molecular sieving and hydrogenation.•This catalyst showed high para-selectivity in the hydrogenation of xylene isomers.

A silicalite-1@Pt/alumina core–shell catalyst that combined molecular sieving and hydrogenation was synthesized by coating silicalite-1 onto the surface of Pt/alumina pellet. While a Pt/alumina catalyst had no selectivity in the hydrogenation of xylene isomers, the silicalite-1@Pt/alumina core–shell catalyst showed much higher efficiency for the hydrogenation of p-xylene than for that of m- and o-xylene. The shape-selective hydrogenation catalyst has great potential for application in xylene separation.

Graphical abstractCoating a silicalite-1 zeolite membrane onto the surface of a Pt/alumina pellet leads to a core–shell catalyst coupling molecular sieving and hydrogenation. The core–shell catalyst showed excellent para-selectivity as well as reaction efficiency for the shape-selective hydrogenation of xylene isomers.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Core–shell; Silicalite-1 membrane; Platinum; Xylene; Hydrogenation
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Preparation of silicalite-1@Pt/alumina core–shell catalyst for shape-selective hydrogenation of xylene isomers
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 64, 5 April 2015, Pages 110–113
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us