宿州煤层气田8~#煤吸附特征及影响因素研究  

Study on Adsorption Characteristics and Influence Factors of No. 8 Coal in Suzhou CBM Field

作　　者：房超[1] 顾娇杨[1] FANG Chao;GU Jiao-yang(China United CoMbed Methane Corporation Limited,Beijing 100015,China)

机构地区：[1]中联煤层气有限责任公司,北京100015

出　　处：《煤炭技术》2018年第10期75-78,共4页Coal Technology

摘　　要：通过等温吸附实验揭示了宿州煤层气田8#煤的吸附特征,并探讨了埋深、煤岩煤质、煤阶对煤吸附性能的影响。研究结果表明,宿州煤层气田8#煤具有较好的吸附性能。埋深对煤吸附性能的影响呈现先增大后减小的趋势,在埋深为790 m附近存在临界转换深度。镜质组和惰质组对煤吸附性能具有正效应,而煤中的水分、灰分和挥发分对煤的吸附性能起负效应。煤阶对煤的吸附性能也具有明显的正效应。The adsorption characteristics of No.8 coal in coalbed mathane field of Suzhou were revealed by isothermal adsorption experiments,and the influences of depth,coal quality,coal petrology,and coal rank on the adsorption properties of coal were discussed.The research results show that No.8 coal in the Suzhou CBM field has good adsorption properties.The langmuir volume increases first and then decreases with burial depth.There is a critical conversion depth near the depth of 790 m.The vitrinite and the inertinite have a positive effect on the coal adsorption properties,while the moisture,ash and volatile matter in the coal have a negative effect on the coal adsorption performance.The coal rank has obvious positive effect on the coal adsorption properties.

关 键 词：宿州煤层气田 吸附性能 影响因素 

分 类 号：O647.3[理学—物理化学]