Selective Oxidation of Isobutane over Hydrothermally Synthesised Mo-V-Te-Nb-O Mixed Oxide Catalyst

Chem. J. Chinese Universities

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Selective Oxidation of Isobutane over Hydrothermally Synthesised Mo-V-Te-Nb-O Mixed Oxide Catalyst

ZHU Wan-Chun, JIA Ming-Jun , WANG Zhen-Lü, WANG Guo-Jia, WU Tong-Hao

College of Chemistry, Jilin University, Changchun 130021, China

Received:2006-04-20 Revised:1900-01-01 Online:2007-02-10 Published:2007-02-10
Contact: WANG Guo-Jia

Abstract

Abstract: Various Mo-V-Nb-Te-O mixed oxide catalysts were prepared by hydrothermal synthesis and characterized by means of XRD, ICP, BET and SEM. The catalysts were tested in the selective oxidation of isobutane to methylacrolein(MAL) and methacrylic acid(MAA). The effects of elemental composition of the catalyst, reaction temperature and GHSV on the catalytic performance were investigated. The results indicate that the composition and crystal phase of the catalysts significantly affected the catalytic properties. Under the optimum reaction conditions(673 K, GHSV=3600 h^-1), MoV_0.3Te_0.17Nb_0.12O_x exhibited the highest catalytic performance, the conversion of isobutane was 10.8%, the yield of MAA+MAL was about 6.5%.

Key words: Isobutane, Selective oxidation, Hydrothermal synthesis, MoVTeNbO_x oxide

CLC Number:

O643.3

TrendMD:

ZHU Wan-Chun, JIA Ming-Jun , WANG Zhen-Lü, WANG Guo-Jia, WU Tong-Hao. Selective Oxidation of Isobutane over Hydrothermally Synthesised Mo-V-Te-Nb-O Mixed Oxide Catalyst[J]. Chem. J. Chinese Universities, doi: .

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Selective Oxidation of Isobutane over Hydrothermally Synthesised Mo-V-Te-Nb-O Mixed Oxide Catalyst

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