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2008•Journal of Hydrogen and New EnergyRequires access

Partial Oxidation of n-Octane over Rh-Containing Alumina-Supported Catalysts

Shin‐Hwa Lee, Young‐Woong Suh, Dong-Jin Suh, Tae‐Jin Park, Kwan‐Young Lee

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Abstract

This study has been focused on the partial oxidation(POX) of n-octane over Rh-containing catalysts supported on alumina. The catalysts for this reaction were prepared by incipient wetness(IW) and co-gel(CG) methods, followed by the calcination at or . When applied to the POX of n-octane carried out at with C/O=3 and GHSV=3,450/h, the catalyst prepared by the CG method and calcined at showed the best activity, yielding 42% syngas(+CO) with the /CO ratio of . To enhance the activity and stability of catalysts, bimetallic catalysts were synthesized by the CG method. As a result, the performance of Rh-Ni/ catalyst was superior to that of Rh/ catalyst in terms of the catalyst stability, due to the retarding effect on the Rh-to- transition by the addition of Ni. This result was confirmed by XRD, TEM, and TPR characterizations.

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What this paper is about

This study has been focused on the partial oxidation(POX) of n-octane over Rh-containing catalysts supported on alumina. The catalysts for this reaction were prepared by incipient wetness(IW) and co-gel(CG) methods, followed by the calcination at or . When applied to the POX of n-octane carried out at with C/O=3 and GHSV=3,450/h, the catalyst prepared by the CG method and calcined at showed the best activity, yielding 42% syngas(+CO) with the /CO ratio of . To enhance the activity and stability of catalysts, bimetallic catalysts were synthesized by the CG method. As a result, the performance of Rh-Ni/ catalyst was superior to that of Rh/ catalyst in terms of the catalyst stability, due to the retarding effect on the Rh-to- transition by the addition of Ni. This result was confirmed by XRD, TEM, and TPR characterizations.

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Available abstract

This study has been focused on the partial oxidation(POX) of n-octane over Rh-containing catalysts supported on alumina. The catalysts for this reaction were prepared by incipient wetness(IW) and co-gel(CG) methods, followed by the calcination at or . When applied to the POX of n-octane carried out at with C/O=3 and GHSV=3,450/h, the catalyst prepared by the CG method and calcined at showed the best activity, yielding 42% syngas(+CO) with the /CO ratio of . To enhance the activity and stability of catalysts, bimetallic catalysts were synthesized by the CG method. As a result, the performance of Rh-Ni/ catalyst was superior to that of Rh/ catalyst in terms of the catalyst stability, due to the retarding effect on the Rh-to- transition by the addition of Ni. This result was confirmed by XRD, TEM, and TPR characterizations.

Key concepts: Catalysis, Calcination, Bimetallic strip, Incipient wetness impregnation, Syngas, Octane, Partial oxidation, Materials science

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