文献类型：期刊文献

英文题名：Reaction kinetics for olefin hydrogenation over cobalt-molybdenum hydrotreating catalyst and model study of catalyst properties

作者：Li, J; Pan, YZ; Chen, MS; Zhu, BC

机构：[1]E CHINA UNIV SCI & TECHNOL,DEPT CHEM ENGN,SHANGHAI 200237,PEOPLES R CHINA

年份：1996

卷号：14

期号：5

起止页码：613

外文期刊名：FUEL SCIENCE & TECHNOLOGY INTERNATIONAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:A1996UF82400001)】；

语种：英文

摘要：Intrinsic kinetic data for propylene hydrogenation over a CoMo/Al2O3 catalyst were measured in a plug-flow integral reactor at atmospheric pressure in the ranges of temperature and propylene concentration similar to industrial processes. The parameters of several Langmuir-Hinshelwood kinetic models derived from postulated corresponding reaction mechanisms were estimated by DFP variable measurement method. It was shown in view of physical meaning, variance and residue analysis that the data could be simulated satisfactorily by power law model and the models derived from the adsorption of only either molecular hydrogen or dissociated hydrogen. A kinetic optimization method which combined diffusion-reaction model, kinetic data, pore-size distribution and tortuosity factor was proposed in this paper to calculate the intraparticle reaction dead region and intraparticle concentration profiles. The method was used to treat hydrogenation reaction nd the model values of tortuosity factor were justified by single pellet string reactor experiments. Research work showed that kinetic optimization method was effective for analysis of any reaction system over arbitrary shapes of catalysts.