REACTION KINETICS FOR OLEFIN HYDROGENATION OVER COBALT-MOLYBDENUM HYDROTREATING CATALYST AND MODEL STUDY OF CATALYST PROPERTIES
作者:
Jie Li,
Yinzhen Pan,
Minsong Chen,
Bingchen Zhu,
期刊:
Fuel Science and Technology International
(Taylor Available online 1995)
卷期:
Volume 13,
issue 7
页码: 857-879
ISSN:0884-3759
年代: 1995
DOI:10.1080/08843759508947711
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Intrinsic kinetic data for propylene hydrogenation over a CoMo / Al2O3catalyst 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 and 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.
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