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
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- 引用格式:
-
宋琦,王树立,陈燕,郑志,余汇军.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[J].天然气与石油,2010,28(5):0.doi:
.Experiment and Theoretical Study on Natural Gas Hydrate Formation Conditions of Compound Additives[J].Natural Gas and Oil,2010,28(5):0.doi:
- DOI:
- 作者:
- 宋 琦1,2，王树立1，陈 燕2，郑 志1，余汇军1
- 作者单位:
- 1.江苏工业学院 江苏省油气储运技术重点实验室2.中国石化镇海炼化分公司
- 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
Gas hydrate;Compound additives;Optimum response concentration;New dynamics model
- 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255 mg/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.
