燃料与化工
燃料與化工
연료여화공
Fuel & Chemical Processes
2015年
5期
1-4
,共4页
煤热解%热重分析%动力学特性
煤熱解%熱重分析%動力學特性
매열해%열중분석%동역학특성
Coal pyrolysis%Thermogravimetric analysis%Kinetic characteristics
采用热重分析和气体热载体实验考察了准东煤和神木煤的热解动力学特性,并根据热解动力学模型确定动力学参数. 随热解温度的升高,反应停留时间对半焦收率及半焦挥发分的影响逐渐减小;煤热解活化能与反应停留时间、煤粒径大小均相关. 研究结果对于煤热解工艺工业化具有参考意义.
採用熱重分析和氣體熱載體實驗攷察瞭準東煤和神木煤的熱解動力學特性,併根據熱解動力學模型確定動力學參數. 隨熱解溫度的升高,反應停留時間對半焦收率及半焦揮髮分的影響逐漸減小;煤熱解活化能與反應停留時間、煤粒徑大小均相關. 研究結果對于煤熱解工藝工業化具有參攷意義.
채용열중분석화기체열재체실험고찰료준동매화신목매적열해동역학특성,병근거열해동역학모형학정동역학삼수. 수열해온도적승고,반응정류시간대반초수솔급반초휘발분적영향축점감소;매열해활화능여반응정류시간、매립경대소균상관. 연구결과대우매열해공예공업화구유삼고의의.
This paper probes into the pyrolysis kinetic characteristics of Zhundong coal and Shenmu coal with thermogravimetric analysis method and gas heat carrier experiment, and determines the kinetic parameters by established pyrolysis kinetic model. It finds that the impact of reaction residence time on semi-coke yield and its volatile matter decreases with increasing pyrolysis tempera-ture;the pyrolysis activation energies of coals are related to reaction residence time and coal particle size. The study results have great significance on industrialization of coal pyrolysis process.
