硅酸盐学报2009，Vol.37Issue(7)：1249-1253,5.
不同气氛下煤粉与水泥生料混合物的热分析
THERMO-ANALYSIS OF CEMENT RAW MEAL MIXED WITH PULVERIZED COAL IN DIFFERENT ATMOSPHERES
摘要
Abstract
The kinetics of cement raw meal mixed with a certain percentage of pulverized coal was investigated by means of a thermo-gravimetric analyzer in three different atmospheres (such as O2, CO2, 50% O2 and 50% CO2) with a heating rate of 20 K/min. According to the related coefficient |r|, the reaction was controlled based on both the interface reaction mechanism and the nucleation/growth mechanism.In O2 atmosphere, the interface reaction mechanism was dominant. When the percentage of CO2 increased in O2 atmosphere, the nucleation and growth mechanism occurred. The active energy E and the pre-exponential factor InA can be obtained under different conditions. It is indicated that the increase of O2 percentage and the effective combustion of pulverized coal can lead to the decrease of the active energy.关键词
水泥生料/热分析/分解反应动力学/分解机理Key words
cement raw meal/thermo analysis/kinetics of decomposition/decomposition mechanism分类
化学工程引用本文复制引用
郭涛,陈慧,考宏涛..不同气氛下煤粉与水泥生料混合物的热分析[J].硅酸盐学报,2009,37(7):1249-1253,5.基金项目
江苏省高校自然科学基金(07KJB530043)资助项目. （07KJB530043）
