煤粉燃烧过程中挥发分的析出及残焦的反应性  

Devolatilization of Pulverized Coal during Combustion and Reactivity of the Residual Char

作　　者：陈鸿[1] 孙学信[1] 曾羽健[1] 韩才元[1] 

机构地区：[1]华中理工大学煤燃烧国家重点实验室

出　　处：《华中理工大学学报》1994年第3期47-51,共5页Journal of Huazhong University of Science and Technology

摘　　要：研究了合山煤燃烧过程中挥发分的析出机理，并与惰性气氛中煤的热解机理进行了比较，发现两者是有所不同的。计算了残焦的反应性，结果表明残焦反应性与成焦条件有关，并且在煤焦的整个燃尽过程中是变化的，这种变化与焦中残存的挥发分、活性基等密切相关。The evolving mechanism of the volatile during the combustion of Heshan-produced coalis studied. And compared with that of the pyrolysis of Heshan-produced coal in an inert at-mosphere. It has been found that they are different.Experiments were performed in a droptube furnace. The reactivity of the residual char has been calculated.It is shown that the re-activity is heavily dependent on the forming conditions of the char and it varies during thecombustion; Owing to the variation of the residual volatile and active radical.

关 键 词：挥发分 煤粉燃烧 燃烧过程 残焦 

分 类 号：TQ534[化学工程—煤化学工程]