复合型添加剂对天然气水合物生成条件的实验及理论研究  

Experiment and Theoretical Study on Natural Gas Hydrate Formation Conditions of Compound Additives

作　　者：宋琦[1,2] 王树立[1] 陈燕[2] 郑志[1] 余汇军[1] 

机构地区：[1]江苏工业学院江苏省油气储运技术重点实验室,江苏常州213016 [2]中国石化镇海炼化分公司,浙江宁波315207

出　　处：《天然气与石油》2010年第5期9-13,共5页Natural Gas and Oil

基　　金：中石化总公司基金项目(20050534);江苏省科技计划国际合作项目(BZ2007032)

摘　　要：基于天然气水合物的各种应用技术具有广泛的工业应用前景,通过实验研究了复合添加剂对水合物生成的影响,选用液态烃甲基环已烷(MCH)和阴离子表面活性剂十二烷基苯磺酸钠(SDBS)混合溶液作为实验溶液,发现MCH+SDBS混合溶液在SDBS浓度为255mg/kg时诱导时间最短,为复合添加剂的最佳反应浓度,此时的溶液体系能很好地优化水合物形成过程,且比单一MCH溶液或SDBS溶液的诱导时间都有明显缩短。同时二次诱导时间和生成时间的数据对今后储存运输水合物有着重要的指导意义。研究建立了考虑复合促进剂作用的新型水合物动力学模型。Various kinds of application technologies based on natural gas hydrate have widespread industrial application prospect.Mixture of liquid hydrocarbon methyl cyclohexane(MCH) and anionic surfactant sodium dodecyl benzene sulfonate(SDBS) is selected for experimental solution and analyzed are effects of compound additives on hydrate formation by experimental study and it is found that the mixture of MCH and SDBS has the shortest induction time in case of SDBS concentration equal to 255mg/kg,the optimum reaction concentration of compound additives.At this time,the solution system can well optimize hydrate formation and obviously shorten the induction time than single MCH solution or SDBS solution.In addition,the second induction time and generated time data have an important guiding significance for future hydrate transportation and storage and new dynamics model has been established for considering the effect of compound promoter.

关 键 词：天然气水合物 复合添加剂 最佳反应浓度 新型动力学模型 

分 类 号：TE82[石油与天然气工程—油气储运工程]