Separation and purification of methane from coal-bed methane via the hydrate technology

摘要：

The separation of methane from coal-bed methane (CBM) via hydrate process using tetrahydrofuran (THF) + sodium dodecyl sulfate (SDS) as additives was investigated in this work. The effect of additives, the concentration of the additives and hydrate memory effect on the hydrate-based separation process were examined at various concentrations of THF + SDS solutions. The results indicate that THF + SDS solutions decrease the formation pressure of methane remarkably and show that the methane concentration in CBM can be enhanced effectively with the system of THF (1.0 mol％) + SDS (500 ppm) in the moderate condition. The concentration of CH4 can be increased by about 20％ for the two feed gases (20％ and 50％ CH4/N2). It indicates the CBM with low methane can be improved to the one which can be used directly by several steps of the hydrate-based separation technology.

关键词： CBM hydrate separation THF SDS

作者: Cai Jing Chen Zhaoyang Li Xiaosen Xu Chungang

作者单位: Key Laboratory of Renewable Energy and Natural Gas Hydrate Guangzhou Center for Gas Hydrate Research Key Laboratory of Renewable Energy and Natural Gas Hydrate Guangzhou Center for Gas Hydrate Research

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 341-345

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）