煤炭转化2017，Vol.40Issue(3)：15-20,6.
基于热分析法的神府粉煤低温热解影响因素研究
Effect Factors of Shenfu Pulverized Coal Low-temperature Pyrolysis by Thermal Analysis Technique
王苗 1李云 2王毅 1李宇声 1樊琛1
作者信息
- 1. 西安交通大学城市学院机械工程系,710018西安
- 2. 西安交通大学化学工程与技术学院,710049西安
- 折叠
摘要
Abstract
The pyrolysis process of Shenfu pulverized coal at different heating rate,with different diameter and at different flow rate of carry gas was studied by TG-DTG thermogravimetric analysis.The optimal condition of maximum weight loss rate was determined through orthogonal experiments.The thermogravimetric experiment results show that heating rate,diameter and flow rate of carry gas have effect on the pyrolysis weightlessness.It is found that the pyrolysis weightlessness decreases with the increase of heating rate and flow rate of carrier gas.The effect of diameter on pyrolysis weightlessness is a parabola distribution,so there is an optimal diameter when the pyrolysis weightlessness is a maximum.During pyrolysis the optimal diameter of Shenfu coal (d＜0.84 mm) is 0.25 mm-0.42 mm.The results of orthogonal experiment show that during coal pyrolysis,the main factor is heating rate,next is diameter and then flow rate of carry gas.The fastest pyrolysis weight loss rate is 4.95％/min when diameter is 0.25 mm-0.42 mm,heating rate is 30 ℃/min,flow rate of carry gas is 120 mL/min.关键词
神府粉煤/热解/兰炭/正交实验/TG-DTG/失重率Key words
Shenfu pulverized coal/coal pyrolysis/blue-coke/orthogonal experiments/TG-DTG/weight loss rate分类
化学化工引用本文复制引用
王苗,李云,王毅,李宇声,樊琛..基于热分析法的神府粉煤低温热解影响因素研究[J].煤炭转化,2017,40(3):15-20,6.
