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

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 proceeding › Conference 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 language	English
Title of host publication	EFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition
Publisher	ENEA
Pages	385-386
Number of pages	2
ISBN (Electronic)	9788882862541
Publication status	Published - 2011
Externally published	Yes
Event	4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011 - Rome, Italy Duration: 2011 Dec 14 → 2011 Dec 16

Other

Other	4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011
Country/Territory	Italy
City	Rome
Period	11/12/14 → 11/12/16

ASJC Scopus subject areas

Fuel Technology

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Autothermal reformings of Iso-octane and Gasoline with Rh-based catalysts: Influence of CeO₂/-Al₂O₃-based supports on catalytic activity. / Yoon, C. W.; Jung, Y. G.; Choi, D. K. et al.
EFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition. ENEA, 2011. p. 385-386.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yoon, CW, Jung, YG, Choi, DK, Kim, DM & 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. ENEA, pp. 385-386, 4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011, Rome, Italy, 11/12/14.

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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.",

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year = "2011",

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T2 - 4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011

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AB - 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.

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

Abstract

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