天然气水合物生成及分解的微观实验研究

Microscopic Structure Researches in Formation and Dissociation Process of Natural Gas Hydrate

摘要: 天然气水合物在我国南海海域具有广泛的分布，具有能量密度高、规模大、埋藏浅、成藏物化条件优越等诸多特点,是最有前途的可替代能源。本文采用实验手段，对天然气水合物生成及分解过程进行微观实验研究。在拉曼光谱测试中，不同组分的气样1和气样2生成的天然气水合物形态基本一致，强峰在2953 cm⁻¹，小峰在2874 cm⁻¹和2891 cm⁻¹，可判断其为II型结构天然气水合物。同时，利用高压型差示扫描量热仪，对气样1在纯水和动力学抑制剂(Luvicap EG)和增效剂(PEO)条件下形成天然气水合物和分解天然气水合物的规律进行研究。

Abstract: The natural gas hydrates is considered as the most promising alternative energy. It has many cha-racteristics such as high energy density, large scale, shallow burial and superior physical and chemical conditions. In this paper, the experimental methods are used to study the formation and decomposition of natural gas hydrate. Gas sample 1 and gas sample 2 have different gas compo-nents. In the Raman spectrum experiment, the gas hydrate formed by gas sample 1 and gas sam-ples 2, is basically in the same curve. The strong peak is in 2953 cm⁻¹, and the small peaks are in 2874 cm⁻¹ and 2891 cm⁻¹, respectively. Structure II type of natural gas hydrate are judged. More-over, using high pressure DSC, natural gas hydrate formation and decomposition rules in kinetic inhibitors of (Luvicap EG) and synergistic agent (PEO) were researched.