Oxidative Dehydrogenation of Propane over Vanadate Catalysts Supported on Calcium and Strontium Hydroxyapatites

DOI Web Site Web Site 2 Citations 30 References Open Access
  • Sugiyama Shigeru
    Dept. of Advanced Materials, Institute of Technology and Science, The University of Tokushima Dept. of Geosphere Environment and Energy, Center for Frontier Research of Engineering, The University of Tokushima Dept. of Chemical Science and Technology, The University of Tokushima
  • Osaka Takeshi
    Dept. of Chemical Science and Technology, The University of Tokushima
  • Ueno Yohei
    Dept. of Chemical Science and Technology, The University of Tokushima
  • Sotowa Ken-Ichiro
    Dept. of Advanced Materials, Institute of Technology and Science, The University of Tokushima Dept. of Geosphere Environment and Energy, Center for Frontier Research of Engineering, The University of Tokushima Dept. of Chemical Science and Technology, The University of Tokushima

Bibliographic Information

Other Title
  • カルシウムおよびストロンチウムヒドロキシアパタイト担持バナデート触媒によるプロパンの酸化脱水素反応

Search this article

Description

The oxidative dehydrogenation of propane to propylene was investigated over vanadate catalysts supported on calcium and strontium hydroxyapatites (VOx/CaHAp and VOx/SrHAp, respectively). Catalytic activities were improved by both CaHAp and SrHAp supports, but the improvement was greater for VOx/SrHAp than for VOx/CaHAp. The maximum yield of propylene observed for 5% VOx/SrHAp was comparable to that of Mg2V2O7, which is one of the most active catalysts for the oxidative dehydrogenation of propane. The combination of active sites for loading (VOx) and the OH groups of the support (CaHAp and SrHAp) resulted in the enhanced catalytic activity. Furthermore, the redox nature of the loading directly contributed to the enhancement of VOx/SrHAp activity. The effect of catalyst weight (5% VOx/SrHAp) relative to the feedstock flow rate on selectivities to propylene and COx suggested that oxidative dehydrogenation proceeded through a consecutive mechanism in which propylene was formed from the oxidative dehydrogenation of propane, followed by deep oxidation from propylene to COx, rather than the direct oxidation of propane.

Journal

Citations (2)*help

See more

References(30)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top