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Enhanced stability of hydrochlorination of acetylene using polyaniline-modified Pd/HY catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
49256 46730 2016 5 PDF Available
Title
Enhanced stability of hydrochlorination of acetylene using polyaniline-modified Pd/HY catalysts
Abstract

•Pd catalysts supported on the polyaniline-modified HY (Pd/PANI-HY) are prepared.•The catalyst exhibits excellent stability in acetylene hydrochlorination.•The presence of polyaniline inhibits coke deposition and the Pd2 + reduction.

ABSTRACTA polyaniline (PANI)-modified zeolite Y supported Pd catalyst (Pd/PANI-HY) for acetylene hydrochlorination was successfully synthesized by ultrasonic-assisted impregnation. The catalyst exhibited excellent stability, and acetylene conversion was maintained at > 95% more than 300 h. The excellent stability of the Pd/PANI-HY catalyst was attributed to the presence of the polyaniline that partly weakens the occurrence of carbon deposition and also inhibited the reduction of the Pd2 + active component on the catalyst surface.

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Keywords
Palladium catalysis; HY zeolite; Polyaniline; Acetylene hydrochlorination
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Enhanced stability of hydrochlorination of acetylene using polyaniline-modified Pd/HY catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 74, 10 January 2016, Pages 55–59
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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