Effects of fractal pore on coal devolatilization

摘要：

Coal devolatilization is numerically investigated by drop tube furnace and a coal pyrolysis model (Fragmentation and Diffusion Model).The fractal characteristics of coal and char pores are investigated.Gas diffusion and secondary reactions in fractal pores are considered in the numerical simulations of coal devolatilization,and the results show that the fractal dimension is increased firstly and then decreased later with increased coal conversions during devolatilization.The mechanisms of effects of fractal pores on coal devolatilization are analyzed.

关键词： coal devolatization fractal pore

作者: Yongli Chen Xiaoliang Wang Liyong Cao Rong He

作者单位: Department of Thermal Engineering,Tsinghua University,Beijing 100084 Centre new energy institute,Dongfang electric corporation,Chengdu 610036,P.R.China

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 134-138

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）