促进水合物生成传质过程实验研究  

Experimental Exploration for Improving the Mass Transfer Process in Hydrate Formation

作　　者：李文昭[1] 马贵阳[1] 潘振[1] 郝成名[1] 

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2018年第1期78-82,共5页Journal of Petrochemical Universities

基　　金：辽宁省自然科学基金项目(201602470);辽宁省高等学校优秀人才支持计划项目(LJQ2014038)

摘　　要：研究在纯水(静态)、纯水(搅拌)、三种表面活性剂溶液(静态)和表面活性剂溶液(搅拌)体系下,水合物生成速率及储气量变化,并从传质角度进行理论分析。结果表明,纯水搅拌体系可有效提高水合物生成速率,但相比静态及搅拌表面活性剂溶液体系,对储气量改善不明显;表面活性剂能够促进水合物生成,这与其双亲性及能在金属表面发生吸附有关,随着表面活性剂HLB值增大,水合物生成速率提高,储气量降低;在表面活性剂溶液中添加搅拌可进一步提高水合物生成速率。Hydrate formation process is a mass transfer process between gas and liquid, which lead to phase change. As the mass transfer efficiency between gas and liquid is low, the hydrate formation rate is slow, as the mass transfer efficacy is low, the amount of consumed gas is small. Therefore, improving the hydrate formation rate and storage capacity is actually improving the efficiency and efficacy of mass transfer between gas and liquid.The variation of hydrate formation rate and storage capacity is studied in static pure water, pure water with stirring, for kinds of surfactants solution and surfactants solution with stirring systems.The promoting mechanism is analyzed from mass transfer. The results showed that hydrate formation rate in system of pure water with stirring is effectively improved but the storage capacity improve not obviously compared with in systems of surfactants solution and surfactants solution with stirring. The reason that surafactants can promote hydrate formation is related to its amphipathicity and ability to adsorb at metal surface. As the surfactants HLB value increase, hydrate formation rate improved but storage capacity decreased slightly. Hydrate formation rate can be further improved in system of surfactants solution with stirring.

关 键 词：传质 水合物 生成速率 储气量 表面活性剂 搅拌 HLB值 

分 类 号：TE89[石油与天然气工程—油气储运工程]