超细与常规煤粉的热解特性及其热解机理的研究  

Research on pyrolysis characteristics and mechanism of micro-pulverized and common-pulverized coal

作　　者：张超群[1] 魏砾宏[2] 任庚坡[1] 姜秀民[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《哈尔滨工业大学学报》2006年第11期1948-1951,共4页Journal of Harbin Institute of Technology

基　　金：国家高技术研究发展计划资助项目(2002AA527051)

摘　　要：结合积分法和微分法,由热解曲线和动力学方程出发,得到了适合不同粒度的大同烟煤和元宝山褐煤的热解机理,上述煤种热解反应都遵循Zhuralev,Lesok in和TemPelm an三维扩散方程;同时对大同烟煤和元宝山褐煤不同粒度的煤样的热解特性进行研究,由实验数据得到了热解反应动力学参数,为进一步研究超细和常规煤粉的着火、燃烧提供了理论基础.It is very difficult for traditional thermogravimetry to conclude the pyrolysis mechanism of coah Therefore, based on pyrolysis curve and kinetic equation, integral method was combined with differential method to obtain pyrolysis mechanism for coal with four different particle size which are taken from Yuanbaoshan and Datong. It has been proved that their pyrolysis mechanism follow Zhuralev, Lesokin and TemPelman three-dimensional diffused equation. Meanwhile, DTG -60H thermobalance made in Japan was utilized to study pyrolysis characteristic of samples from Yuanbaoshan and Datong whose average size, and made out the chemical kinetics parameters in terms of experimental data, which could provide an important base of further researching lignition and combustion of micro-pulverized and common pulverized coal.

关 键 词：热解 颗粒粒度 动力学参数 热解机理 

分 类 号：TQ530.2[化学工程—煤化学工程]