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2002•Chinese Journal of ChemistryRequires access

Characterization and Dehydrogenation Activity of SBA‐15 and HMS Supported Chromia Catalysts†

Hong‐Yong Yue, Bo Zheng, Yinghong Yue, Xuezheng Zhang, Weiming Hua, Zi Gao

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Abstract

Abstract SBA‐15 and HMS supported chromia catalysts were prepared and characterized. Chromia is highly dispersed on the mesoporous supports when its loading is 7 wt%. The supported catalysts display high activity, selectivity and stability for dehydrogenation of ethylbenzene and propane. ESR measurement of the catalysts before and after reaction shows that the active species for dehydrogenation reaction might be Cr3+ species on the catalyst surface, and the activity of the catalyst is probably correlated with the dispersion of Cr3+ species.

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What this paper is about

Abstract SBA‐15 and HMS supported chromia catalysts were prepared and characterized. Chromia is highly dispersed on the mesoporous supports when its loading is 7 wt%. The supported catalysts display high activity, selectivity and stability for dehydrogenation of ethylbenzene and propane. ESR measurement of the catalysts before and after reaction shows that the active species for dehydrogenation reaction might be Cr3+ species on the catalyst surface, and the activity of the catalyst is probably correlated with the dispersion of Cr3+ species.

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Available abstract

Abstract SBA‐15 and HMS supported chromia catalysts were prepared and characterized. Chromia is highly dispersed on the mesoporous supports when its loading is 7 wt%. The supported catalysts display high activity, selectivity and stability for dehydrogenation of ethylbenzene and propane. ESR measurement of the catalysts before and after reaction shows that the active species for dehydrogenation reaction might be Cr3+ species on the catalyst surface, and the activity of the catalyst is probably correlated with the dispersion of Cr3+ species.

Key concepts: Dehydrogenation, Chromia, Chemistry, Catalysis, Propane, Selectivity, Inorganic chemistry, Ethylbenzene

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Characterization and Dehydrogenation Activity of SBA‐15 and HMS Supported Chromia Catalysts† — Research Paper | ScholarLens