Characteristics of oxygen chemisorption on porous coal char

被引：0
|
作者：
Kwang Sup Song
Sang Done Kim
机构：
[1] Korea Institute of Energy Research,Energy Efficiency Research Department
[2] Korea Advanced Institute of Science and Technology,Department of Chemical Engineering and Energy & Environment Research Center
来源：
Korean Journal of Chemical Engineering | 1999年 / 16卷
关键词：
Coal-Char; Chemisorption; Gasification; Kinetic Equation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Oxygen chemisorption on a porous coal char was investigated by a typical consecutive pyrolysis and chemisorption experiments in a thermogravimetic analyzer. Small amounts of carbon-oxygen surface complexes are gasified to CO and CO2 during the oxygen chemisorption at 423 K. The kinetic equation of oxygen chemisorption on porous char including gasification of surface oxides well represents the chemisorption/gasification behavior of oxygen on the coal char. The activation energy and the frequency factor for oxygen chemisorption on coal-char are found to be 57 kJ/mol and 9.16×106/hr, respectively.
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页码：175 / 179
页数：4
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