Reaction Kinetic Analysis of Bituminous Coal Char Gasified by CO2

被引：3
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
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2015年 / 37卷 / 21期
关键词：
activation energy; gasification; normal distribution model; random pore model; reaction kinetics; RANDOM PORE MODEL; FLUID-SOLID REACTIONS; STEAM GASIFICATION; HIGH-PRESSURE; PYROLYSIS; STABILITY; ALKALI;
D O I：
10.1080/15567036.2012.704487
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
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.
引用
收藏
页码：2259 / 2270
页数：12
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