热解温度对型煤半焦气化反应活性的影响  

INFLUENCE OF PYROLYSIS TEMPERATURE ON BRIQUETTE SEMI-COKE GASIFICATION REACTIVITY

作　　者：吴鹏 朱书全[1] 王娜[1] 段慧 郭美玲 

机构地区：[1]中国矿业大学化学与环境工程学院,北京硕士生100083

出　　处：《煤炭转化》2010年第4期35-39,共5页Coal Conversion

基　　金：高等学校学科创新引智计划项目(“111计划”)

摘　　要：热解温度是影响煤焦气化反应活性的重要因素.以型煤和相似粒度的原煤为样品在不同热解温度下制备煤焦,研究了热解温度对煤焦/CO2反应活性的影响,并对型煤半焦与原煤半焦的气化性能进行比较.结果表明,褐煤中低温热解所得半焦在1000℃以上时具有较高的气化反应活性;在相同热解温度下,型煤半焦的反应活性稍高于原煤半焦;热解温度为650℃～750℃时半焦的反应活性最高.Pyrolysis temperature is one of the important factors that affect the char gasification reactivity.In this paper,the coal char samples were prepared under different pyrolysis temperatures with briquette and raw coal of similar size.The effect of pyrolysis temperature on char gasification reactivity was studied,and gasification properties of two kinds of semi-coke were compared.The results show that,the coal chars had high gasification reactivity above 1 000 ℃,and at the same time the reactivity of briquette semi-coke was slightly higher than that of raw lignite char.The two kinds of coal char both had the highest gasification reactivity when pyrolysis temperature was in the range of 650 ℃-700 ℃.

关 键 词：提质型煤 半焦 热解温度 反应活性 

分 类 号：TQ530.2[化学工程—煤化学工程] TQ54