期刊
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
卷 47, 期 9-10, 页码 1844-1852出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2007.10.010
关键词
V2O5/TiO2; o-xylene; selective oxidation; phthalic anhydride; fluidized bed
A kinetic study of the partial oxidation of o-xylene over a V2O5/TiO2 catalyst in a fluidized bed reactor is presented. The use of a fluidized bed reactor allows to obtain reliable kinetic data in spite of the strong exothermicity of the reaction. The effect of the main operating variables has been studied. Additionally, a fluid-dynamic model for both phases (gas and solid), able to describe their behaviour in fluidized beds has been used to fit data. Two redox kinetic models have been tested: the first one takes into account only oxidized sites, while the second one considers both, oxidized and reduced sites. (c) 2007 Elsevier B.V. All rights reserved.
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