文献类型：期刊文献

英文题名：Potassium-catalyzed steam gasification of petroleum coke for H₂ production: Reactivity, selectivity and gas release

作者：Wu, Youqing[1];Wang, Jianjian;Wu, Shiyong;Huang, Sheng;Gao, Jinsheng

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

年份：2011

卷号：92

期号：3

起止页码：523

外文期刊名：FUEL PROCESSING TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000287428900035)】；

基金：The work was supported by the Program for Changjiang Scholars and the Innovative Research Team in University (IRT0620). The authors thank the National Basic Research Program of China (2010CB227003-5), the 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：Petroleum coke; Catalytic steam gasification; Reactivity; Selectivity; Hydrogen

摘要：Potassium-catalyzed steam gasification of petroleum coke for H-2 production was performed using a laboratory fixed-bed reaction system with an on-line quadruple mass spectrometer. The gasification reactivity, gasification selectivity and gas release for the catalytic gasification were investigated, compared with the non-catalytic gasification. The catalytic gasification could not only effectively promote these reactions (the water-carbon reaction, the water-gas shift reaction and the methane-steam reforming reaction), but also elevate greatly the gasification selectivity towards CO2 (a high gasification selectivity towards CO2 meant a high H-2 production). A quantitative calculation method for the gasification selectivity towards CO and CO2 was proposed to further understand the catalytic behaviors of catalysts. In the case of catalytic gasification, the gasification temperature had opposite effects on the gasification reactivity and the gasification selectivity towards CO2, suggesting that there existed an optimum gasification temperature (about 750 degrees C) for H-2 production from the potassium-catalyzed steam gasification of petroleum coke. In addition, petroleum coke could be feasibly utilized as the feedstocks for the catalytic steam gasification to produce gases with high H-2 (55.5-60.4%) and virtually no CH4 (below 0.1%). (C) 2010 Elsevier B.V. All rights reserved.