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2002•Chinese Journal of Applied ChemistryRequires access

Study of V_2O_5/γ-Al_2O_3 Catalyst for Dehydrogenation of Isobutane

Hong Ma

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Abstract

The V 2O 5/ γ Al 2O 3 for dehydrogenation of isobutane was found to have a high catalytic activity under reaction conditions of 590 ℃, GHSV=1 000 h -1 and atmospheric pressure. The structure of the catalyst was characterized by means of XRD, UV Vis and BET technique. The results indicated that the dehydrogenation behavior of the catalyst was in correlation with the dispersion and the state of vanadia on the catalyst surface. Chemical composition and physical state of vanadia on the catalyst surface are affected by the kind of support, the loading of vanadium and calcination temperature as well.

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What this paper is about

The V 2O 5/ γ Al 2O 3 for dehydrogenation of isobutane was found to have a high catalytic activity under reaction conditions of 590 ℃, GHSV=1 000 h -1 and atmospheric pressure. The structure of the catalyst was characterized by means of XRD, UV Vis and BET technique. The results indicated that the dehydrogenation behavior of the catalyst was in correlation with the dispersion and the state of vanadia on the catalyst surface. Chemical composition and physical state of vanadia on the catalyst surface are affected by the kind of support, the loading of vanadium and calcination temperature as well.

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Available abstract

The V 2O 5/ γ Al 2O 3 for dehydrogenation of isobutane was found to have a high catalytic activity under reaction conditions of 590 ℃, GHSV=1 000 h -1 and atmospheric pressure. The structure of the catalyst was characterized by means of XRD, UV Vis and BET technique. The results indicated that the dehydrogenation behavior of the catalyst was in correlation with the dispersion and the state of vanadia on the catalyst surface. Chemical composition and physical state of vanadia on the catalyst surface are affected by the kind of support, the loading of vanadium and calcination temperature as well.

Key concepts: Isobutane, Dehydrogenation, Chemistry, Catalysis, Calcination, Vanadium, Space velocity, Inorganic chemistry

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