气体水合物储存甲烷促进技术研究
Study on Promotion Technology of Methane Storage in Hydrate
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摘要: 气体水合物储气技术是世界上正在研究开发的天然气储存新技术。针对含表面活性剂水溶液体系中甲烷水合物的形成过程进行了试验研究, 发现微量的表面活性剂可以使甲烷水合物在静止的系统中快速形成, 并且可以提高气体水合物储存甲烷的能力。在300 mg/L十二烷基硫酸钠水溶液中, 在0.9℃、5.54 MPa时, 甲烷水合物储气量达到162.63 m3/m3, 是理想储气量的90%。Abstract: Gas hydrate technology is being developed for the storage of natural gas in the world.Methane hydrate formation is studied in aqueous surfactant solutions.Micellar surfaetant solutions are found to increase methane hydrate formation rate in a quiescent system and improve methane storage capacity in hydrates.162.63 V/V methane storage capacity in hydrates is achieved in aqueous 300 ppm SDS solutions at the conditions of 5.54 MPa and 274.05 K (90% of the theoretical hydrocarbon gas capacity of hydrates).