文献类型：期刊文献

中文题名：原油中水滴电分散的研究

英文题名：Research on Electrodispersion of Water in Crude Oil

作者：杨允明[1];张一安[1];詹敏[1];Mahamat;A.Adam

机构：[1]华东化工学院石油加工研究所

年份：1993

卷号：19

期号：6

起止页码：707

中文期刊名：华东化工学院学报

外文期刊名：Huadong Huagong Xueyuan Xuebao/Journal of East China Institute of Chemical Technology

收录：国家哲学社会科学学术期刊数据库;EI(收录号：1994041222137);Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：电场;原油;水滴;水滴电分散;温度

外文关键词：dispersion; electric fields; crude oil; water droplets; temperature; voltage gradient

摘要：原油中的水滴在高压直流电场中被电场力分散成小液滴。通过测定小液滴的平均粒径和原油中被分散的水量,发现水滴的电分散程度与温度和电场强度的变化有密切关系。温度改变原油性质来影响水滴的变形断裂,其中粘性阻力起主导作用。电场强度会明显影响水滴所受的电场力。在80℃下,场强1500V/cm时有10%以上的水滴被分散,到场强5 000V/cm时则达到40%以上。场强超过7 000V/cm以后分散作用的增强逐步减弱。
The dispersion of water drops in two Chinese crude oils by DC electrical field has been studied. The experiment data concerning the average diameter of the dispersed droplets and dispersed water quantity show that the extent of electrodispersion is affected notably by temperature and electric field intensity. The effect of temperature on the distorting and breaking up of droplets is produced mainly by changing the properties of crude oil, especially the viscosity. The electrical forces acting on the droplets increase with the increasing of the voltage gradient. At 80℃, the percentage of the dispersed water is over 10% under 1500 V/cm voltage gradient, and exceeds 40% under 5000 V/cm. When the voltage gradient is above 7000 V/cm, the increase rate of dispersion is slowed down progressively.