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Selective hydrogenation of acetylene over Pd catalysts supported on nanocrystalline α-Al2O3 and Zn-modified α-Al2O3

Paper ID Volume ID Publish Year Pages File Format Full-Text
51746 46853 2008 6 PDF Available
Title
Selective hydrogenation of acetylene over Pd catalysts supported on nanocrystalline α-Al2O3 and Zn-modified α-Al2O3
Abstract

The catalytic performance of Pd catalysts supported on nanocrystalline α-Al2O3 and Zn-modified α-Al2O3 prepared by sol–gel and solvothermal methods was studied in the selective hydrogenation of acetylene. Acidity of the nanocrystalline α-Al2O3 was significantly decreased by incorporation of Zn atoms in the α-Al2O3. Both of acetylene conversions and ethylene selectivities were improved in the order: Pd/Zn-modified α-Al2O3-sol–gel > Pd/Zn-modified α-Al2O3-solvothermal > Pd/α-Al2O3-sol–gel ≈ Pd/α-Al2O3-solvothermal >> Pd/α-Al2O3-commerical. As revealed by thermal gravimetric and differential temperature analysis (TG-DTA), Pd catalysts on the nanocrystalline Zn-modified α-Al2O3 also showed less deactivation by coke formation.

Keywords
Selective acetylene hydrogenation; Pd/α-Al2O3; Zn-modified α-Al2O3; Sol–gel; Solvothermal; Nanocrystalline α-Al2O3
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Selective hydrogenation of acetylene over Pd catalysts supported on nanocrystalline α-Al2O3 and Zn-modified α-Al2O3
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 14, 30 August 2008, Pages 2297–2302
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