摘要
采用英国Malvern公司的马尔文粒度仪 ,美国Micromeritics公司的ASPA2 0 0 0型比表面积及孔径分布分析仪 ,对合山、晋城煤的各 4种不同粒径的细化与超细化煤样进行了试验研究。研究结果表明 ,通过煤粉的细化、超细化煤粉颗粒的比表面积、孔隙容积与空隙面积显著的提高 ,对其燃烧过程带来有益的影响。煤中无水无灰基元素碳含量越高则其比表面积、孔隙容积与空隙面积受颗粒粒度的影响也就越大。
Experimental investigation has proved that the physical properties including particle size distribution, specific surface area, porosity ratio and pore volume for four fine coals and micro-pulverized coals with different particle sizes from Heshan and Jincheng are analysed and their influences on combustion characteristics are studied The increase in specific surface area, porosity ratio and pore volume by pulverization is favourable of coal combustion The higher carbon content in dry, ash-free basis of coal shows more remarkable influence of particle size on specific surface area, porosity ratio and pore volume
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2000年第2期170-174,共5页
Journal of Fuel Chemistry and Technology
基金
煤燃烧国家重点实验室开放基金! (编号 :980 3)
国家电力公司东北公司电力工业重点科技项目基金! (编号 :96HB - 0 2 )资助项目
关键词
超细煤粉
比表面积
孔隙率
燃烧特性
孔结构
micro-pulverized coal, specific surface area, porosity ratio, pore structure, physical characteristics, combustion characteristics
