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Improvement of Pd/Al2O3 catalyst performance in selective acetylene hydrogenation using mixed phases Al2O3 support

Paper ID Volume ID Publish Year Pages File Format Full-Text
51696 46850 2008 6 PDF Available
Title
Improvement of Pd/Al2O3 catalyst performance in selective acetylene hydrogenation using mixed phases Al2O3 support
Abstract

The catalytic performances of Pd catalysts supported on γ-Al2O3, α-Al2O3, and mixed phases Al2O3 were investigated in the selective hydrogenation of acetylene in ethylene feed stream. It was found that the use of mixed phases Al2O3 with approximately 64% of α-phase resulted in significant improvements in both acetylene conversion and ethylene selectivity. The presence of small amount of transition phase in the alumina supports brought about higher BET surface area and Pd dispersion as well as improvement of reduction ability of the Pd/Al2O3 catalysts. On the other hand, significant amount of α-Al2O3 is necessary for high ethylene selectivity due to the lower amount of ethylene adsorbed.

Keywords
Selective acetylene hydrogenation; Mixed phases; Pd/Al2O3; α-Al2O3
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Improvement of Pd/Al2O3 catalyst performance in selective acetylene hydrogenation using mixed phases Al2O3 support
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 1, 10 October 2008, Pages 86–91
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
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