文献类型：期刊文献

英文题名：Steam Catalytic Gasification Kinetics of the Hohhot Coals

作者：Wang, X.[1,2];Chen, J.[1,2];Hong, B.[1,2];Yu, G.[1,2];Wang, F.[1,2]

机构：[1]E China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China;[2]Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R China

年份：2013

卷号：35

期号：13

起止页码：1277

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

收录：;EI(收录号：20132416418470);WOS:【SCI-EXPANDED(收录号:WOS:000319382000011)】；

基金：This work was supported financially by the National Basic Research Program of China (Project No. 2010CB227006) and was also supported by the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：catalytic gasification; Hohhot coals; kinetics; model; thermo gravimetric-differential scanning calorimetry

摘要：The effects of temperature on the steam gasification of the Hohhot coal and saturated addition of KOH catalyst were investigated by thermo gravimetric-differential scanning calorimetry equipment. It was found that K showed an obvious catalytic activity on gasification, and decreased the steam gasification temperature for 100 degrees C, and the saturated addition of K catalysts was about 10% for the Hohhot coal steam gasification. A homogeneous phase model, shrinking core model, and integrated model were applied to correlate the data of conversion with time and to estimate the reaction rate constants under different temperatures. The results of simulation showed that the integrated model was best suitable for the TR and the TD steam gasification process, and the shrinking core model was best suitable for the gasification processes of TR-10K and TD-10K. The integrated model was used for solving kinetics parameters of the TR and the TD steam gasification, and the shrinking core model was used for the TD-10K. It was found that the E is 55.06 kJmol(1) for the TD-10K, 132.19 kJmol(1) for the TR, and 144.38 kJmol(1) for the TD.