TPR方法研究煤焦－CO_2气化反应（Ⅱ）不同方法计算动力学参数和补偿效应  

A Temperature programmed Reaction Study on Char CO 2 Gasification (Ⅱ)Kinetic Parameters by Different Methods and Compensation Effect

作　　者：徐秀峰[1] 崔洪[1] 朱珍平[1] 顾永达[1] 陈诵英[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室

出　　处：《煤化工》1996年第4期42-46,共5页Coal Chemical Industry

基　　金：国家自然科学基金

摘　　要：采用三种升温速率，ＴＰＲ方法研究了不同碳化条件下得到的八个煤焦样品的ＣＯ２气化动力学规律。用Ｆｒｅｅｍａｎ－Ｃａｒｒｏｌ、Ｏｚａｗａ和Ｋｉｓｓｉｎｇｅｒ方法计算分别得到了动力学参数。结果表明：尽管由不同方法求得的活化能有较大差异，但都能较好地验证碳化条件对煤焦气化反应性的影响。研究还发现，对所有煤焦样品。用Ｆｒｅｅｍａｎ－Ｃａｒｒｏｌ方法计算得到的活化能Ｅ和指前因子Ａ之间，都存在着动力学补偿效应。CO 2 gasification kinetics of eight char samples were investigated at heating rates of 10, 20 and 40℃/min. We calculated the kinetic parameters using Freeman Carroll,Ozawa and Kissinger methods respectively.The results showed that,although there were differences among the kinetic parameters obtained by different methods,these parameters could reasonably interpret the effect of carbonization conditions on char gasification reactivity.The values of E and A for these reactions exhibited a compensation effect.

关 键 词：煤焦气化 补偿效应 程序升温反应 动力学 煤气化 

分 类 号：TQ546[化学工程—煤化学工程]