超细煤粉热解时轻质烃的析出规律  

RELEASE CHARACTERISTIC OF LIGHT HYDROCARBON DURING PULVERIZED COAL PYROLYZED

作　　者：樊俊杰[1] 金晶[1] 张建民[1] 张忠孝[1] 

机构地区：[1]上海理工大学动力工程学院燃烧与气化工程研究所,上海200093

出　　处：《工程热物理学报》2006年第z2期231-233,共3页Journal of Engineering Thermophysics

基　　金：上海市曙光计划项目资助(No.03SG44);上海理工大学博士启动基金(No.X619);教育部新世纪人才支持计划项目(No.NCET-04-0434)

摘　　要：将不同的煤种在管式炉中,分别进行程序升温热解,利用气相色谱对热解气中轻质烃的析出规律进行了在线分析。分析结果表明:热解产物轻质烃的成分主要由以CH4为主的混和气态烃组成;在相同的热解条件下,轻质烃的热解析出速率随着煤种碳化程度的增高而明显降低,随着煤粉粒径的减小而逐渐升高;轻质烃热解析出高峰的温度随着煤种碳化程度的增高而明显增高,随着煤粉粒径的减小而逐渐降低。In this paper, different coals were respectively heated up in the pipe furnace by program temperature control under the reburning condition. Release characteristics of light hydrocarbon were analyzed using gas-chromatographic technique. The results show that the main component of the pyrolysis gas is CH4, moreover the content of C2(C2H4, C2H6), C3(C3H6, C3H8) and C4H10 are less; In the same pyrolysis condition, the pyrolysis velocity of light hydrocarbon obviously decreases with the increase of carbonized degree and increases with the decrease of coal particle size. The temperature of the light hydrocarbon released up to the max increases with the increase of carbonized degree and decreases with the decrease of coal particle size.

关 键 词：超细煤粉 热解 轻质烃 析出速率 

分 类 号：TK16[动力工程及工程热物理—热能工程]