Autothermal reformings of Iso-octane and Gasoline with Rh-based catalysts: Influence of CeO2/-Al2O3-based supports on catalytic activity

C. W. Yoon, Y. G. Jung, D. K. Choi, D. M. Kim, SukWoo Nam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ATR reactions of iso-octane were initially carried out with Rh-based catalysts (0.5 wt% of Rh) supported onto three kinds of supports, Al2O3, CeO2, and ZrO2. Observed activities were increased in the order of Rh/ Al2O3 > Rh/CeO2 > Rh/ZrO2. Stabilities against carbon coking of these catalysts, however, proved to be increased in the order of Rh/CeO2 > Rh/ZrO2 > Rh/- Al2O3. To derive synergic properties from each of - Al2O3 and CeO2 supports, a CeO2(20 wt%)/-Al2O3 supported Rh catalyst (0.5 wt% Rh) was synthesized and tested for the ATR reactions of iso-octane, showing enhanced activity and stability compared to those with Rh/ -Al2O3. The Rh/-Al2O3 and Rh/-Al2O3/CeO2 catalysts were eventually examined for the ATR reactions of commercial gasoline (GS Caltex, Korea) which contained sulfur, aromatics, and other impurities that could potentially deactivate the catalysts. It turned out that the Rh/-Al2O3 catalyst was significantly deactivated to decrease its activity after 4 h, while the Rh/-Al2O3/CeO2 catalyst proved to be excellent in terms of stability and activity.

Original languageEnglish
Title of host publicationEFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition
PublisherENEA
Pages385-386
Number of pages2
ISBN (Electronic)9788882862541
Publication statusPublished - 2011
Externally publishedYes
Event4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011 - Rome, Italy
Duration: 2011 Dec 142011 Dec 16

Other

Other4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011
CountryItaly
CityRome
Period11/12/1411/12/16

ASJC Scopus subject areas

  • Fuel Technology

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  • Cite this

    Yoon, C. W., Jung, Y. G., Choi, D. K., Kim, D. M., & Nam, S. (2011). Autothermal reformings of Iso-octane and Gasoline with Rh-based catalysts: Influence of CeO2/-Al2O3-based supports on catalytic activity. In EFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition (pp. 385-386). ENEA.