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《JOURNAL OF FUEL CHEMISTRY AND TECHNOLOGY》 1998-06
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STUDY ON COKING OVER ZSM5 CATALYST IN MFT PROCESS OF MFT REFORMING Ⅱ nHEPTANE AND MFT PROCESS MODEL MIXTURE

Liu Zhongwen Zhang Zhixin Zhou Jinglai Renjie (Institute of Coal Chemistry Chinese Academy of Science Taiyuan)  
Based on the lumped kinetic models for the coking over ZSM5 catalyst developed in part one of this study, the coking kinetic equations of nheptane and MFT process model mixture are obtained by fitting the experimental data with a relative error not more than ±20% By using nheptane as a model compound of C 11 hydrocarbons, and the MFT process model mixture as C + 12 hydrocarbons in FT products, the following equation: C=31 53e 14896 74RT t 0 33 f 0 22 1+173 19e 17628 13RT t 0 20 f 0 29 2 can be used to predict the coke content over ZSM5 catalyst at the nearby inlet region of the industrial reactor for MFT reforming preciesely According to the kinetic parameters of different reactants, the coking property of different feeds over ZSM5 is compared It would be possible that the coking over ZSM5 is a diffusioncontrolled process
【CateGory Index】: O643.3
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