文献类型：期刊文献

英文题名：Reaction Kinetic Analysis of Bituminous Coal Char Gasified by CO2

作者：Huo, W.[1];Xu, S.[1];Zhou, Z.[1];Yu, G.[1];Wang, F.[1]

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

年份：2015

卷号：37

期号：21

起止页码：2259

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

收录：;EI(收录号：20154501525562);WOS:【SCI-EXPANDED(收录号:WOS:000364225900001)】；

基金：This work is financially supported by the National Nature Science Foundation of China (21176078) and National Key State Basic Research Development Program of China (973 Program, 2010CB227006).

语种：英文

外文关键词：activation energy; gasification; normal distribution model; random pore model; reaction kinetics

摘要：CO2- gasification behaviors of Shenfu bituminous coal from China were investigated by thermogravi-metric analyzer within the temperature range of 1173-1323 K, and the pressure from 0.1 to 3.0 MPa. The effects of the temperature and pressure on the CO2 gasification of Shenfu char and the relationship between the gasification rate and gasification time in reactor were analyzed. It is found that the reaction rate presents normal distribution with gasification time and a normal distribution model is proposed to fit the kinetics data. Compared with the random pore model, the normal distribution model can be used to describe the gasification rate varying with gasification time at different temperature and pressure. The gasification time t(m) for maximum gasification rate obeys the following equation as the function of reaction temperature: ln t(m) = a + b(1/T). r(m), r(0) were calculated by a normal distribution model following Arrenius law.