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Selective oxidation of propane to acrylic acid over mixed metal oxide catalysts

Journal of Natural Gas Chemistry 2008年第2期17卷 191-194页

作者： Wei Zheng Zhenxing Yu Ping Zhang Yuhang Zhang Hongying Fu Xiaoli Zhang Qiquan Sun Xinguo Hu School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150001 Heilongjiang China Daqing Petroleum Co Ltd Daqing 163453 Heilongjiang China

The effects of metal atomic ratio, water content, oxygen content, and calcination temperature on the catalytic performances of MoVTeNbO mixed oxide catalyst system for the selective oxidation of propane to acrylic acid have been investigated and discussed. Among the catalysts studied, it was found that the MoVTeNbO catalyst calcined at a temperature of 600 ℃ showed the best performance in terms of propane conversion and selectivity for acrylic acid under an atmosphere of nitrogen. An effective MoVTeNbO oxide catalyst for propane selective oxidation to acrylic acid was obtained with a combination of a preferred metal atomic ratio （Mo1V0.31Te0.23Nb0.12）. The optimum reaction condition for the selective oxidation of propane was the molar ratio of C3H8 ：O2 ： H2O ： N2 = 4.4： 12.8 ： 15.3 ： 36.9. Under such conditions, the conversion of propane and the maximum yield of acrylic acid reached about 50% and 21%, respectively.

关键词： propane oxidation catalysts preparation acrylic acid selective oxidation

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Effect of preparation conditions on selective oxidation of propane to acrylic acid

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Transactions of Nonferrous Metals Society of China 2009年第S02期19卷 476-479页

作者： YU Zhen-xing ZHENG Wei XU Wen-long ZHANG Yu-hang FU Hong-ying ZHANG Ping Daqing Nanyuan Group Co. LtdDaqing 163517China

The effects of chemical composition and preparation conditions,especially calcination atmosphere and water content on the catalytic performances of MoVTeNbO mixed oxide catalyst system for the selective oxidation of propane to acrylic acid were *** the catalysts studied,Mo_(1.0)V_(0.3)Te_(0.23)Nb_(0.12)O_(x) catalyst calcined in inert atmosphere at 600℃shows the best performance in terms of propane conversion and selectivity to acrylic *** results reveal that proper chemical composition, calcination atmosphere and water content affect greatly the catalysts in many ways including structure,chemical composition,which are related to their catalytic performances;and 51.0%propane conversion and 30.5%one-pass yield to acrylic acid can be achieved at the same time.

关键词： selective oxidation propane oxidation catalysts preparation acrylic acid propane

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