鼓泡塔中气体水合物生长机理研究

在透明鼓泡塔中首例观测了运动气泡表面水合物的生长和带有水合物层气泡的动力学(在上升过程中颜色、大小的变化),同时在实验过程中发现:反应液体循环和不循环情况下水合物在鼓泡塔床层内生长、存在的位置不同。通过对实验现象的观察、对气泡与水合物颗粒相互作用的分析和对三相作用机制的探讨得出结论:水合物颗粒是完全亲水性颗粒,气体水合物的生长是一种界面现象,为水合物生长动力学模型的建立和水合物分离技术的工业化奠定了基础。

Study on Gas Hydrate Growth Mechanism in Bubbling Column

Gas hydrate formation and growth on the surface of rising bubbles and these bubbles' dynamics (color and size changes) in transparent bubbling column were observed for the first time. In the course of experiments, it was found that gas hydrate growth and existing situation in bubbling column were different with reactant liquid cycle or not. Interactions of bubbles with hydrate particles were analyzed and interaction mechanisms of three phases were discussed. Finally, two conclusions were drawn:(1)Particles of hydrate are highly hydrophilic;(2)The formation and growth of gas hydrate is interfacial reaction. This study lays a foundation for hydrate growing kinetics modeling and hydrate separation technique industrialization.