摘要
以详实的原始测试数据为资料,分析了我国西部弱还原程度煤的煤岩、煤质总体特征.研究表明,与同变质程度的其它地区煤相比,西北侏罗纪弱还原程度煤中惰质组及过渡组分含量较高,导致其挥发分产率较低,氢含量低、氧含量相对较高,黏结性较弱,煤种以不黏煤和弱黏煤为主.沉积环境的弱还原程度主要对中低变质程度烟煤的性质有明显影响.
Based on the systematical measured data, the general characteristics on coal petrology and properties of weak reductive coals from Northwest China were discussed. The results showed that there are usually relatively higher content of fusinite and semifusinite in Jurassic coals from Northwest China compared with the coals with same rank from other districts. This results in there are relatively lower volatile matter and hydrogen content, but the oxygen content is higher in these coals. In according to Chinese national standard GB5751 -1986“Classification of Chinese coals”, most of coals from Northwest China are classified as non-caking coal or weak-caking coal. The reductive degree is more important for bituminous coals with lower to medium rank.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2005年第4期502-506,共5页
Journal of China Coal Society
关键词
煤
还原程度
变质程度
煤岩组成
coal
reductive degree
metamorphic degree
macerals
