依兰煤在液化溶剂中的溶胀动力学研究  

Study on swelling kinetics of Yilan coal in some liquefaction solvents

作　　者：熊楚安[1,2] 王永刚[1] 陈伟[1] 刘寒芳[1] 

机构地区：[1]中国矿业大学（北京）化学与环境工程学院,北京100083 [2]黑龙江科技学院资源与环境工程学院,黑龙江哈尔滨150027

出　　处：《洁净煤技术》2009年第2期53-56,共4页Clean Coal Technology

基　　金：国家重点基础研究发展规划项目(973)(2004CB217601)

摘　　要：笔者以依兰煤为原料，研究了依兰煤在室温至2000℃范围内在液化起始溶剂和循环溶剂中的溶胀行为，并确定了依兰煤在试验条件下的溶胀动力学参数。试验结果表明：依兰煤在液化起始溶剂和循环溶剂中的溶胀度随溶胀温度的增加和溶胀时间的延长而增大；依兰煤在这2种溶剂中的溶胀都是受Case-Ⅰ扩散控制为主的过程，其溶胀活化能分别为4．18和4．22kJ·mol^-1。The rate of the swelling of Yilan coal have been measured in starting solvent （STA） and recycle solvent （REC）within the temperature range （25 -200℃ ）, and the kinetic parameters of the swelling were calculated based on time profile of volumetric swelling rate. The results show that： the rate of the swelling of Yilan coal in STA and REC increases along with temperature and time, the swelling process of Yilan coal can be illustrated by Case-Ⅱ diffusion, and the activation energies for the kinetics of swelling is 4.18 or 4.22kJ·mol^-1 in STA or REC.

关 键 词：煤 溶胀 溶胀动力学 

分 类 号：TQ529[化学工程—煤化学工程]