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Catalytic properties of Pd/HY catalysts modified with NH4F for acetylene hydrochlorination

Paper ID Volume ID Publish Year Pages File Format Full-Text
50272 46787 2015 5 PDF Available
Title
Catalytic properties of Pd/HY catalysts modified with NH4F for acetylene hydrochlorination
Abstract

•The Pd/NH4F-HY catalyst was first applied for acetylene hydrochlorination.•The catalyst exhibited efficient catalytic activity in reaction.•Acetylene conversion and VCM selectivity were all achieved above 99%.•The presence of NH4F played a significant role for acetylene hydrochlorination.

Ammonium fluoride (NH4F) modified HY zeolite catalysts were prepared by ultrasonic-assisted impregnation and their efficient catalytic behavior in acetylene hydrochlorination reaction was investigated (the conversion of acetylene and the selectivity to vinyl chloride were all achieved above 99%). The results indicate that the presence of NH4F in Pd/HY catalysts can partially enhance the surface acidity of catalysts, and weaken the occurrence of carbon deposition and the loss of Pd active component on the catalyst surface, thus improving the catalytic performance of catalysts.

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Keywords
Pd catalysis; HY zeolite; Ammonium fluoride; Acetylene hydrochlorination
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Catalytic properties of Pd/HY catalysts modified with NH4F for acetylene hydrochlorination
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 65, 5 May 2015, Pages 41–45
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
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Price after discount Only $4.95
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