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天然气水合物储运技术涉及水合物的生产、运输和再气化等过程,其中水合物的生产过程、运输过程是要解决的关键问题。实验采用6种不同粒径的冰颗粒形成甲烷水合物,并且在不同的温度条件下开展甲烷水合物分解实验。通过分析认为,冰颗粒对甲烷水合物形成过程有一定的影响,冰颗粒粒径越小越容易形成水合物,形成时间也较短;而在分解过程中,大粒径的冰颗粒形成的甲烷水合物在2种温度条件下均表现出较强的自保护效应,能长时间保持亚稳定状态而不发生分解反应。根据实验中出现的这些特性,提出对天然气水合物储运技术的设想,在水合物形成过程中选取一个最佳的粒径冰颗粒合成水合物,并且在-4℃的温度条件下进行储运。
Gas hydrate storage and transportation technology involves the process of hydrate production, transportation and regasification. The hydrate production process and transportation process are the key issues to be solved. Six kinds of ice particles of different particle sizes were used to form methane hydrate, and methane hydrate decomposition experiments were carried out under different temperature conditions. It is considered that the ice particles have a certain influence on the formation of methane hydrate. The smaller the ice particle size, the easier the hydrate formation and the shorter formation time. In the process of decomposition, the formation of methane Hydrate shows strong self-protection effect under both temperature conditions, and can maintain metastable state for a long time without decomposition reaction. According to the characteristics of experiments, the idea of natural gas hydrate storage and transportation technology was put forward. In the process of hydrate formation, an optimum particle size of ice particle synthesis hydrate was selected and stored at -4 ℃ .