中国电机工程学报2011，Vol.31Issue(17)：26-31,6.
褐煤热解平行反应动力学模型研究
Research on the Parallel Reaction Kinetic Model of Lignite Pyrolysis
摘要
Abstract
The pyrolysis of Hailaer and Huolinhe lignite was studied using thermogravimetric analysis. Without any assumptions for the activation energy distribution and conversion of sub-reaction, a new parallel reaction model of lignite pyrolysis was proposed. The kinetic parameters were obtained on the basis of experimental data. The calculated activation energy (E) was mainly spread over 100-500 kJ/moI, and the pre-exponential factor (A) was 107-10268-1. The good linear relationship between inA and E showed the clear compensation effect. The derived kinetic model was validated, and the results showed that the weight loss rate and residual mass could be accurately predicted and the maximum average deviations were less than 9.12% and 0.73% respectively. For different lignite and experimental conditions, the pyrolysis process could be accurately predicted, which indicated that the model had a wide scope of application.关键词
褐煤/热解/平行反应模型/补偿效应Key words
lignite/ pyrolysis/ parallel reaction model/ compensation effect分类
化学化工引用本文复制引用
张凯,由长福..褐煤热解平行反应动力学模型研究[J].中国电机工程学报,2011,31(17):26-31,6.基金项目
国家自然科学基金项目(50432040). （50432040）
