燃料化学学报2016，Vol.44Issue(12)：1409-1415,7.
内蒙煤焦CO2气化过程的结构演变特性
Structure evolution characteristics of Inner Mongolia coal char during CO2 gasification
摘要
Abstract
The rapid pyrolysis chars of an Inner Mongolia ( Neimeng ) lignite were prepared in a drop tube furnace, and the coal char gasification experiments with CO2 were conducted using a high-frequency induction furnace. The characteristics of char structure evolution during gasification were studied. Results show that as the reaction proceeds, the graphitization degree of gasified chars increases, but it is far less than the degree of natural graphite. The specific surface area firstly increases and then decreases with char conversion, while the average pore size has an opposite trend overall. The particle size of gasified chars gradually increases with conversion in the early stage, and the particle size of gasified chars increases when the conversion exceeds 74%, which could be ascribed to the cohesion of some particles in the later stage of gasification.关键词
快速热解/煤焦/CO2气化/结构演变Key words
rapid pyrolysis/coal char/CO2 gasification/structure evolution分类
化学工程引用本文复制引用
林善俊,李献宇,丁路,周志杰,于广锁..内蒙煤焦CO2气化过程的结构演变特性[J].燃料化学学报,2016,44(12):1409-1415,7.基金项目
The project was supported by the National Natural Science Foundation of China (21376081).国家自然科学基金(21376081)资助 （21376081）
