文献类型：期刊文献

英文题名：A Semi-empirical Kinetic Model for Simulating the Steam Gasification of Petroleum Coke Catalyzed by K2CO3

作者：Wu, S. -Y.[1,2];Huang, S.[1,2];Wu, Y. -Q.[1,2];Gao, J. -S.[1,2]

机构：[1]E China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R China

年份：2014

卷号：36

期号：11

起止页码：1151

外文期刊名：ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

收录：;EI(收录号：20141617572028);WOS:【SCI-EXPANDED(收录号:WOS:000333875400001)】；

基金：The authors wish to thank the National Basic Research Program of China (2010CB227003-5), State Natural Science Foundation of China (20876050), and Opening Fund of State Key Laboratory of Coal Combustion (fsklcc0911) for financial support.

语种：英文

外文关键词：potassium catalyst; simulation; kinetic model petroleum coke; catalytic gasification

摘要：K2CO3-catalyzed steam gasification of petroleum coke at 650-850 degrees C was performed using a laboratory fixed-bed reaction system with an on-line quadruple mass spectrometer. Due to the catalytic effect of K, the catalytic gasification rate exhibited a maximum in the high carbon conversion range, which was different from that in the case of non-catalytic gasification. When the random pore model was used to simulate the catalytic gasification process of petroleum coke, great deviations were found at high carbon conversions. A semi-empirical model (extended random pore model) was proposed on the base of the random pore model. It was found that the extended random pore model could describe well the catalytic gasification profile in the whole carbon conversion range, and the two empirical parameters (alpha and beta) introduced in the extended random pore model could be well correlated with the gasification temperature.