化工学报Issue(9)：3592-3598,7.DOI:10.3969/j.issn.0438-1157.2014.09.038
FD模型应用于煤热解过程的数值模拟
Numerical simulation of coal pyrolysis using FD model
摘要
Abstract
For numerical simulation of coal pyrolysis using the fragmentation and diffusionn (FD) model, a numerical method was proposed. The pyrolysis of three kinds of coal in a heated-tube reactor was simulated respectively, and the results were compared with the experimental results and also with the numerical results of FG-DVC model and CPD model. The effect of pyrolysis temperature and particle diameter on coal pyrolysis product was also studied. The accuracy of FD model was higher than FG-DVC model and CPD model, proving that FD model was more applicable for numerical simulation of coal pyrolysis. The gas product increased rapidly by increasing pyrolysis temperature until 1373 K, and then was nearly constant when pyrolysis temperature was higher than 1373 K. The tar product decreased with increasing pyrolysis temperature, and less time was needed to reach the maximum tar amount. The gas product and tar product both decreased by increasing particle diameter of coal, while more time was needed to reach the maximum tar amount.关键词
煤/热解/模型/数值计算/欧拉-拉格朗日方法Key words
coal/pyrolysis/model/numerical simulation/Euler-Lagrangian method分类
能源科技引用本文复制引用
虞君武,陈永利,何榕,张衍国..FD模型应用于煤热解过程的数值模拟[J].化工学报,2014,(9):3592-3598,7.基金项目
国家自然科学基金项目（21376134）。@@@@supported by the National Natural Science Foundation of China (21376134) （21376134）
