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Production of CO-free hydrogen through the decomposition of LPG and kerosene over Ni-based catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
43713 45984 2007 10 PDF Available
Title
Production of CO-free hydrogen through the decomposition of LPG and kerosene over Ni-based catalysts
Abstract

The catalytic performance of Ni-based catalysts for the decomposition of hydrocarbons of C3–C8 into CO-free hydrogen and carbon fibers was investigated in order to produce CO-free hydrogen as a fuel for PEFC from liquefied petroleum gas (LPG) and kerosene. The addition of Cu or Pd into Ni/SiO2 catalyst elongated its catalytic life for the propane decomposition. Especially, Ni–Pd/SiO2 catalyst showed higher activity and longer life for the decomposition of propane at 823 and 873 K, compared to Ni/SiO2 and Ni–Cu/SiO2 catalysts. Ni–Pd/SiO2 catalyst was deactivated gradually with time on stream during the decomposition of propane due to the deposition of large amounts of carbon. However, the activity of the catalyst for the propane decomposition was recovered completely by the gasification of deposited carbon with CO2 into CO. This result suggested that CO-free hydrogen and CO could be produced successively through the decomposition of hydrocarbons and the subsequent gasification of deposited carbon with CO2. Ni–Pd/SiO2 showed high catalytic activity for the decomposition of hydrocarbons of C6–C8 to form CO-free hydrogen. Thus, CO-free hydrogen was produced through the decomposition of commercial kerosene over Ni–Pd/SiO2 catalyst.

Graphical abstractNi–Pd/SiO2 showed a higher activity and a longer life for the decomposition of hydrocarbons of C3–C8 into CO-free hydrogen, compared to Ni/SiO2 and Ni–Cu/SiO2 catalysts. These results suggested that Ni–Pd/SiO2 can produce CO-free hydrogen as a fuel for PEFC through the decomposition of LPG and kerosene.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Ni-based catalysts; Ni–Pd/SiO2 catalyst; Decomposition of hydrocarbons; CO-free hydrogen; Carbon fiber; LPG; Kerosene
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Production of CO-free hydrogen through the decomposition of LPG and kerosene over Ni-based catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 321, Issue 2, 11 April 2007, Pages 165–174
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