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Carbon microsphere supported Pd catalysts for the hydrogenation of ethylene

Paper ID Volume ID Publish Year Pages File Format Full-Text
52039 46863 2008 5 PDF Available
Title
Carbon microsphere supported Pd catalysts for the hydrogenation of ethylene
Abstract

Carbon microspheres were prepared from acetylene at 800 °C. The microspheres were loaded with 2% Pd (impregnation method), both before and after acid treatment, and characterized and tested for ethylene hydrogenation. Transmission electron microscopy (TEM) confirmed that the carbon microspheres had a core-shell structure and that the shell was crystalline in nature. XPS studies on the fresh carbon microsphere supported Pd catalyst showed the presence of the Pd (3d5/2) in two different oxidation states. The influence of space velocity and C2H4/H2 mole ratio on the catalyst performance in the ethylene hydrogenation reaction was studied at 60 °C. The acid treated carbon microsphere supported Pd catalyst showed better ethylene hydrogenation activity than the non-acid treated catalyst, but TEM analysis revealed that the Pd metal sintered during catalysis.

Keywords
Ethylene hydrogenation; Carbon microsphere; TEM; Raman spectroscopy; XPS
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Carbon microsphere supported Pd catalysts for the hydrogenation of ethylene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 4, 15 March 2008, Pages 494–498
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
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