摘要
利用热重分析仪研究了植入金属氧化物对褐煤半焦水蒸气气化反应的影响,并对其气化反应机理及动力学特性进行了分析.实验结果表明:水蒸气气化反应温度和负载的过渡金属氧化物是影响半焦水蒸气气化反应的重要因素.随着气化反应温度的升高,反应速率加快;Fe-Zn形成的复合金属氧化物铁酸锌对半焦气化反应具有最强的催化作用,达到最大气化反应速率的时间最短,具有最小的表观反应活化能(166.89kJ/mol).
Effects of impregnation of metallic oxides on lignite char gasification were studied using the thermogravimetric analyzer.The characteristics and kinetics of gasification reaction were analyzed.The experimental results show that the temperature and metallic oxides loading are important factors to influence the reaction rate and activation energy during steam gasification of char.As the gasification temperature increasing,the gasification reaction rate increases.Fe-Zn complex oxides catalyzed the gasification reaction of char,and the apparent activation energy of the reaction is reduced to 166.89kJ/mol under the present experimental conditions.
出处
《煤炭转化》
CAS
CSCD
北大核心
2016年第4期21-25,共5页
Coal Conversion
