Oxidative dehydrogenation of n-butane to n-butene and 1,3-butadiene over Mg3(VO4)2/MgO-ZrO2 catalysts: Effect of Mg:Zr ratio of support

被引:21
作者
Lee, Jong Kwon [1 ]
Lee, Howon [1 ]
Hong, Ung Gi [1 ]
Lee, Jinsuk [2 ]
Cho, Young-Jin [2 ]
Yoo, Yeonshick [2 ]
Jang, Ho-Sik [2 ]
Song, In Kyu [1 ]
机构
[1] Seoul Natl Univ, Inst Chem Proc, Sch Chem & Biol Engn, Seoul 151744, South Korea
[2] Samsung Total Petrochem Corp, Daesan 356711, South Korea
关键词
Oxidative dehydrogenation; n-Butane; Oxygen capacity; Acidity; Vanadium-magnesium oxide; SELECTIVE OXIDATION; O CATALYSTS; PYROPHOSPHATE CATALYSTS; V/MGO CATALYSTS; CARBON-DIOXIDE; PERFORMANCE; PROPANE; GAMMA-BI2MOO6; BEHAVIOR; ALUMINA;
D O I
10.1016/j.jiec.2011.12.011
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
MgO-ZrO2 supports with different Mg:Zr ratios (16:1, 8:1, 4:1, 2:1, and 1:1) were prepared by a geloxalate co-precipitation method, and Mg-3(VO4)(2)/MgO-ZrO2 catalysts were then prepared by a wet impregnation method. The prepared catalysts were applied to the oxidative dehydrogenation of n-butane to n-butene and 1,3-butadiene. Experimental results revealed that oxygen capacity and acidity of the catalyst were closely related to the catalytic performance. Among the catalyst tested, Mg-3(VO4)(2)/MgO-ZrO2 (4:1) catalyst, which retained the largest oxygen capacity and acidity, exhibited the best catalytic performance in the oxidative dehydrogenation of n-butane. (C) 2011 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1096 / 1101
页数:6
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