A Study on the Combustion Properties of Western Chinese Coals

A Study on the Combustion Properties of Western Chinese Coals
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中国西部煤炭燃烧特性研究

DOI:
10.1080/15567030802606327
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发表时间:
2010-03
影响因子:
2.9
通讯作者:
Li, F.
Li, F.
中科院分区:
工程技术4区
文献类型:
--
作者:
Xie, K. -C.;Wang, J. -H.;Chang, L. -P.;Li, F.

文献摘要

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摘要采用热重分析和动力学分析方法,对我国三种富惰质煤和一种中煤的燃烧过程及其影响因素进行了系统的研究。结果表明,煤种、升温速率和氧气流量是影响煤燃烧的主要因素,而试样用量和粒度对煤燃烧的影响不大。动力学分析表明,未反应收缩核模型比较适合煤燃烧机理的解释,活化能随煤中含碳量的增加和升温速率的加快而降低。
Abstract Combustion process and influencing factors have been researched systematically by means of thermogravimetric analysis and kinetics analysis methods on three inertinite-rich Chinese coals and one middle Chinese. The results indicate that coal types, heating rate, and oxygen flow rate are the main effect factors, and yet, the sample usage and particle size have little influence on the combustion of coal. The kinetics analysis shows that unreacted shrinking core model comparatively fits for the mechanism illustration of coal combustion and the activation energy decreases with carbon content in coal increasing and heating rate stepping up.
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