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Correlation between catalytic selectivity and oxygen storage capacity in autothermal reforming of methane over Rh/Ce0.45Zr0.45RE0.1 catalysts (RE = La, Pr, Nd, Sm, Eu, Gd, Tb)

Paper ID Volume ID Publish Year Pages File Format Full-Text
51333 46839 2009 4 PDF Available
Title
Correlation between catalytic selectivity and oxygen storage capacity in autothermal reforming of methane over Rh/Ce0.45Zr0.45RE0.1 catalysts (RE = La, Pr, Nd, Sm, Eu, Gd, Tb)
Abstract

Trivalent rare-earth (RE = La, Pr, Nd, Sm, Eu, Gd, Tb)-doped Ce0.45Zr0.45RE0.1 solid solutions were synthesized via reverse micro-emulsion method and the catalytic performance of the Rh-supported catalysts was investigated in autothermal reforming of methane (ATR). It was found that CH4 conversion went through a maximum as a function of oxygen storage capacity (OSC) value of the support. Higher OSC will help to enhance the reactivity toward water–gas-shift (WGS) reaction, resulting higher H2/CO ratio. A striking correlation between OSC and H2/CO ratio was observed, which presented a maximum for the Rh/CZLa (3.4) and a minimum for the Rh/CZTb (2.6) catalysts.

Keywords
Autothermal reforming; Methane; CeO2–ZrO2; Rare-earth
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Correlation between catalytic selectivity and oxygen storage capacity in autothermal reforming of methane over Rh/Ce0.45Zr0.45RE0.1 catalysts (RE = La, Pr, Nd, Sm, Eu, Gd, Tb)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 8, 30 March 2009, Pages 1192–1195
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