水合物法分离气体混合物是一种适合低沸点气体混合物新的分离技术，在天然气加工和化工领域具有广阔的应用前景。将水以微乳的形式分散与烃相不仅可以显著提高水合物生成速度，防止水合物聚结堵塞设备，而且可以达到吸收-水合耦合分离效果，提高分离效率。基于如何快速提高水合物生成速度和高效分离混合气的目标，本课题研究了微乳液体系中水合物生成过程中的热力学和动力学，主要研究内容包括：气体-微乳液相平衡特征研究；气-微乳液体系水合物热力学生成条件测定与计算模型开发；微乳液中气体水合物生成动力学特征研究；微乳液体系中吸收-水合法分离气体混合物模拟实验研究。研究结果表明，采用微乳液的形式能有效降低易形成水合物组分在气相中的分配系数；微乳液的溶解吸收与水合分离方法相耦合，可以显著提高单级分离效率和单级反应速率；建立的气-液拟相平衡热力学模型及水合物亚稳态平衡条件模型均能较好的模拟实验结果，对于高效快速实现吸收-水合物法分离混合气的工业应用提供了重要基础理论及有力的应用保障。

Separating gas mixture by forming hydrate is a new technology for the separation of low boiling gas mixture. It is expected to be wildly applied in the processing of natural gas & oil and chemical industry in near future. To disperse water in oil in the form of emulsion can not only increase the hydrate formation rate and inhibit the plugging of system, but also realize the effect of coincidence separation of adsorption-hydrate, and therefore increase the separation efficiency. In order to increase quickly the hydrate formation rate and the separation efficiency, the thermodynamic and kinetic of hydrate formation in emulsion system in this work were investigated. The main work include the measurement and modeling of gas-emulsion equilibrium behavior, the measurement and modeling of hydrate formation in emulsion system, the investigation of hydrate formation kinetic behavior, the simulation experiment of the separation of gas mixture in emulsion system using adsorption-hydration method. The result indicate that the partition coefficient of hydrate former in gas phase decrease obviously by using the emulsion system, and the separation efficiency and hydrate formation rate were also increased by using the adsorption-hydration technology. The determined gas-emulsion equilibrium thermodynamic model and hydrate formation condition model in meta-stable show a good agreement with the experiment results, which provide the crucial theoretical tool and supports for the industrial adsorption-hydration separation process.

水合物法分离气体混合物是一种适合低沸点气体混合物新的分离技术，在天然气加工和化工领域具有广阔的应用前景。将水以微乳的形式分散与烃相不仅可以显著提高水合物生成速度，防止水合物聚结堵塞设备，而且可以达到吸收-水合耦合分离效果，提高分离效率。基于如何快速提高水合物生成速度和高效分离混合气的目标，本课题研究了微乳液体系中水合物生成过程中的热力学和动力学，主要研究内容包括：气体-微乳液相平衡特征研究；气-微乳液体系水合物热力学生成条件测定与计算模型开发；微乳液中气体水合物生成动力学特征研究；微乳液体系中吸收-水合法分离气体混合物模拟实验研究。研究结果表明，采用微乳液的形式能有效降低易形成水合物组分在气相中的分配系数；微乳液的溶解吸收与水合分离方法相耦合，可以显著提高单级分离效率和单级反应速率；建立的气-液拟相平衡热力学模型及水合物亚稳态平衡条件模型均能较好的模拟实验结果，对于高效快速实现吸收-水合物法分离混合气的工业应用提供了重要基础理论及有力的应用保障。