煤田地质与勘探2017，Vol.45Issue(1)：35-40,6.DOI:10.3969/j.issn.1001-1986.2017.01.007
自吸水分对煤中瓦斯解吸的综合影响
Comprehensive influence of self-adsorbed water on gas desorption in coal
吴家浩 1王兆丰 1苏伟伟 2陈金生1
作者信息
- 1. 河南理工大学安全科学与工程学院,河南焦作 454000
- 2. 河南省瓦斯地质与瓦斯治理重点实验室—省部共建国家重点实验室培育基地,河南焦作 454000
- 折叠
摘要
Abstract
In order to research the influence of self-adsobed water on gas desorption in coal, the spontaneous imbi-bition was realized by self–designed experimental device, the replacement effect of water for gas was researched alone, the amount of gas replacement desorption, the relief–pressure desorption and the residual gas in different water content were measured. The results indicated that the moisture could promote the replacement desorption of absorbed gas, the amount of replacement desorption increased with water content. In the process of desorption after gas pressure-relief, the gas desorption amount of moist coal was less than that of the dry coal during the same time, and decreased with increase of water content, residual gas content of moist coal was also less than that of dry coal after sufficient desorption, in water content range of 4%~10%, residual gas content decreased with increase of wa-ter content.For Yonghong anthracite in Jinchengg, self-adsorbed water content manifests overally acceleration ef-fect for gas desorption. The influence of moisture on gas desorption is the combined influence of replacement effect and water-locking effect.关键词
渗吸/置换效应/瓦斯解吸/残余瓦斯含量Key words
imbibition/replacement effect/gas desorption/residual gas content分类
天文与地球科学引用本文复制引用
吴家浩,王兆丰,苏伟伟,陈金生..自吸水分对煤中瓦斯解吸的综合影响[J].煤田地质与勘探,2017,45(1):35-40,6.
