摘要
通过对比准东煤与福建无烟煤的煤质分析、燃烧特性指数、燃烧动力学参数等,分析了准东煤与福建无烟煤的燃烧特性差异。结果表明:准东煤的挥发分明显高于福建无烟煤,属于极易着火的煤种;福建无烟煤与准东煤硫分低,燃烧中对环境污染小,但灰熔点都相对较低,容易结渣;准东煤的热重曲线较福建无烟煤向低温区偏移,峰区较宽,燃烧失重峰为双峰,着火方式由非均相着火向均相着火转变。准东煤的综合燃烧特性指数较大,表观活化能小;准东煤的煤反应活性和燃烧特性明显优于福建无烟煤。依热重分析,福建无烟煤与准东煤的着火温度分别为673.17和397.49℃,燃尽温度分别为803.05和741.18℃,活化能分别为191.39和26.32kJ/mol,综合燃烧特性指数分别为3.162×10-5和2.775×10-3。
The combustion characteristics of Zhundong coal and Fujian anthracite were comparatively studied by comparisons of the proximate analysis, ultimate analysis, ash fusibility and thermogravimetry curves.The results show that Zhundong coal has higher volatile content making it easy to get ignited,and the same as Fuj ian anthracite,it has low sulphur content and severe slagging property.Compared Zhundong coal with Fujian anthracite,the thermogravimetry curves of the former has the shifting feature to the lower temperature and a wider peak region.Besides,its ignition mode is not heterogeneous but homogeneous one. The comprehensive combustion characteristic index of Zhundong coal is higher and its apparent activation energy is lower.Therefore,Zhundong coal is obviously better than Fujian anthracite in the coal reactivity and combustion characteristics.The ignition temperature, burnout temperature, activation energy and comprehensive combustion characteristic index of Zhundong coal and Fujian anthracite are 673.17,802.05 ℃,191.39 kJ/mol and 3.162× 10^-5 to 397.49,739.34 ℃,26.32 kJ/mol and 2.775 ×10^-3 ,respectively.
出处
《热科学与技术》
CAS
CSCD
北大核心
2015年第3期184-188,共5页
Journal of Thermal Science and Technology
基金
福建省高校产学研合作科技重大资助项目(2013H6018)
关键词
准东煤
福建无烟煤
燃烧特性
动力学参数
Zhundong coal
Fujian anthracite
combustion characteristic
kinetic parameter
作者简介
何宏舟（1967-），男，博士，教授。博士生导师，主要从事能源清洁利用与可再生能源技术开发研究．E-mail：hhe99@126．com
