聚结技术及其乳化油水分离性能

聚结分离是一种利用油、水两相对材料浸润性的不同而实现乳化液滴聚结长大并最终通过重力沉降实现油水分离的物理方法，这种方法结构可控性好、分离效率高、运行成本低，是乳化油水分离领域的研究热点。本文首先对聚结分离方法进行详细阐述，介绍了聚结分离原理和影响因素；总结了近年来国内外学者对聚结材料表面改性和修饰等方面的研究。通过调控聚结材料的表面具有特殊浸润性，可显著提高油水分离效率；系统介绍聚结分离器的分类及其应用。最后阐述了聚结分离技术在石油化工领域的应用。本文对聚结分离技术进行展望，指出可以进一步研究实际液滴聚结过程和分离效果影响因素，应深入研究分离器在乳化油水分离过程中液滴聚结行为、机理、控制机制将是研究的重点。

Coalescence technology and its application in the separation of oil and water emulsion

Coalescence separation is a kind of physical method based on the different wettability of oil and water on the solid surface, in which the tiny droplets in emulsion gradually adhere, grow up and separate on the surface of coalescing materials. Oil and water can be separated because of the different density. Due to its advantages of good structure controllability, high separation efficiency and low operation cost, it becomes a hot topic in the field of emulsified oil-water separation. In this paper, the coalescence separation method is described and its principle and the influencing factors are introduced in details firstly. At the same time, the researches on coalescence materials and the surface modification are summarized. The surface of the coalesced material have special wettability through various modification methods, which can significantly improve the oil-water separation efficiency. The classification and application of coalescer separator are systematically introduced. For different industrial applications, the corresponding coalescer can be selected. Finally, the application of coalescence separation technology in petrochemical industry is elaborated. The prospect pointed out that the actual droplet coalescence process and the factors affecting the separation effect can be further studied. The optimization design of the separator, coalescence behavior of emulsified oil/water, mechanism, and control mechanisms will be the focus of the study of coalescence separation.