水合物生成表面活性剂研究进展

Research Progress of Surfactant on Hydrate Formation

水合物因具有储能密度大、制备条件简单、存储稳定等优点,目前广泛应用于气体储运、气体分离、蓄冷等行业。然而纯水合物的生成速率不高和储气密度低是阻碍水合物技术进一步工业化应用的主要原因,研究表明向体系中添加促进剂可使这个问题得到有效缓解和改善。通过综述国内外各种离子型表面活性剂的研究进展,分析了其对水合物生成的相平衡条件、生成速率和储气密度的影响规律,阐述了各促进剂对水合物合成的促进机理,为水合物理论与技术的深入研究及工业化发展提供参考和借鉴。

Based on the advantages of high storage capacity,simple preparation conditions and stable storage,hydrate technology is widely used in many fields,such as storage and transportation of natural gas,gas separation,cold storage,etc.However,the low formation rate of pure hydrate and low gas storage density are the main reasons that hinder the industrial application of hydrate technology,research has shown that adding surfactants to the system can effectively alleviate and ameliorate this problem.This paper reviews the research development of ionic surfactants at home and abroad,analyzes their effects on the phase equilibrium conditions,formation rate and gas storage density of hydrate formation,the acceleration mechanism of various surfactants on hydrate synthesis are described in detail,which provides theoretical reference for further research of hydrate theory and technology and industrial development.