Kinetic promotion of sodium dodecyl sulfate on formation rate of mine gas hydrate

摘要：

Rapid coal mine gas hydrate formation is the primary key for the application of coal mine gas hydrate technologies such as coal and gas outburst prevention and coal mine gas separation. Gas hydrate formation experiments at initial pressure variations from 7.0 to 9.0 MPa were performed using coal mine gas in the presence of Sodium Dodecyl Sulfate (SDS) in aqueous solution in a high pressure cell. The concentration of SDS in aqueous solution varied from 0.4 to 0.7 mol/L. The kinetic hydrate formation behaviors in the solution were observed. The gas consumption rate and hydrate formation rate were obtained, based on the formation curves of mine gas hydrate, the state equation of real gases and the volume equation of gas hydrate. The hydrate formation rate mainly depends on the initial pressure and SDS concentration. There exists an optimal SDS concentration to maximally promote hydrate growth.

关键词： coal mine gas hydrate formation rate SDS coal and gas outburst coal mine gas separation

作者: Wu Qiang Zhang Bao-yong

作者单位: College of Safety Engineering, Heilongjiang Institute of Science & Technology, Harbin 150027, China

会议类型: 国际会议

会议名称: The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)

会议地点: 徐州

会议语种:英文

页码: 1-6

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）