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Effect of K promoter on the stability of Pd/NFY catalysts for acetylene hydrochlorination

Paper ID Volume ID Publish Year Pages File Format Full-Text
49682 46760 2016 5 PDF Available
Title
Effect of K promoter on the stability of Pd/NFY catalysts for acetylene hydrochlorination
Abstract

•Bimetallic PdK catalysts supported NFY zeolites are prepared.•The catalyst exhibits excellent stability in acetylene hydrochlorination.•The K promoter can stabilize the Pd2 + species and inhibit the coke deposition.

Pd and PdK bimetallic catalysts were prepared and applied in acetylene hydrochlorination reaction. Using NFY zeolites as supports, the Pd-K/NFY catalyst showed both high activity and excellent stability, with a C2H2 conversion of 99% more than 50 h. Characterized results indicate that the K promoter can stabilize the Pd2 + species and weaken the occurrence of carbon deposition on the catalyst surface, thus improving the stability of the Pd-based catalysts.

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Keywords
Palladium catalysis; NFY zeolite; Potassium promoter; Acetylene hydrochlorination
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Effect of K promoter on the stability of Pd/NFY catalysts for acetylene hydrochlorination
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 83, 5 August 2016, Pages 9–13
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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