CAJ | 학술논문

在不同升温速率条件下研究气卸蒙古煤在氧气中的燃烧行为，得出燃烧过程的动力学方程和动力学参数．用等转化率法求得其在氧气中燃烧的活化能为199.81kJ ? mol -1；用主曲线法确定燃烧过程的最可几机理函数的积分式为 G（α）＝[- ln（1-α）] m ，m ＝1.29±0.02，由 Ea 和 G （α）求得指前因子 lnA /s -1为29.95±0.04．另外，根据煤的燃烧特性指数 R 的大小，得出升温速率越小，R 值越大，则气卸蒙古煤的燃烧特性愈好；在实验范围内煤粒径尺寸越小越容易燃烧．
재불동승온속솔조건하연구기사몽고매재양기중적연소행위，득출연소과정적동역학방정화동역학삼수．용등전화솔법구득기재양기중연소적활화능위199.81kJ ? mol -1；용주곡선법학정연소과정적최가궤궤리함수적적분식위 G（α）＝[- ln（1-α）] m ，m ＝1.29±0.02，유 Ea 화 G （α）구득지전인자 lnA /s -1위29.95±0.04．령외，근거매적연소특성지수 R 적대소，득출승온속솔월소，R 치월대，칙기사몽고매적연소특성유호；재실험범위내매립경척촌월소월용역연소．
The burning behavior of Qixie Mongolia coal were studied under non-isothermal conditions by thermogravimetry (TG) technique in O2 .The iterative iso-conversional method was applied to calculate the activation energy Ea of burning ,the most probable mechanism function G(α) was determined by means of the master plots method .The pre-exponential factor A was obtained on the basis of Ea and G (α) .In O2 ,the kinetic parameters (Ea and ln A ) of burning are given as : Ea = 199.81kJ ? mol - 1 ,ln (A /s - 1 )= 29.95 ± 0.04 .The mechanism function of the burning was G(α)= [ - ln(1 - α)] m ,m= 1.29 ± 0.02 .In addition ,the influence of particle size on the combustion of coal were also studied .It was found that the smaller of particle size ,the better of the combustion characteristics .When the heating rate of the Qixie Mongolia coal is lower ,the R is bigger ,and the combustion characteristic is better .