新型高频电脱工艺研究与动态实验装置设计

随着中国经济的持续增长、对能源的需求日益提高，石油供给已成为影响国家经济发展的战略问题。海上石油开采量日趋增加，但海上平台开采出的原油，普遍含水率较高，部分原油含水率甚至可高达70%以上，需进行脱水处理后才能进行输送与炼制加工。针对海上平台原油脱水处理能力有限以及脱水效率低的问题，在研究高频高压电场对油水作用机理的情况下，利用电场仿真与实验研究的方法，创新提出一种新型非均匀电场模型及高频电脱动态实验装置，该装置采用新型异径圆柱体电极，构建出不均匀电场，同时搭建的动态实验装置对原油电脱水过程进行动态循环，实现对高含水原油的电脱水处理。实验表明，利用该装置对高含水原油进行动态电脱水，出口油中含水达到0.7%，其电脱效率优于现今电脱器的电脱效率，具有较大的推广应用价值。

Design and Experiment of a New Type of High Frequency Electric Dehydration Device

With the continuous growth of China's economy and the increasing demand for energy, oil supply has become a strategic issue affecting the country's economic development. The amount of offshore oil exploitation is also increasing. However, the crude oil produced by offshore platforms generally has a high water content, and even some crude oils can have a water content of more than 70%. It needs to be dewatered before being transported and refining. Aiming to solve the problems of limited dehydration treatment capacity and low dehydration efficiency of crude oil on offshore platforms, we make a study on the mechanism of high-frequency and high-voltage electric fields on oil and water. Using electric field simulation and experimental research methods, a novel non-uniform electric field model and high-frequency electro-dehydration dynamic experiment device is proposed that adopts a new-type different-diameter cylindrical electrode to construct an uneven electric field. At the same time, a dynamic experiment device is used to circulate the electric dehydration process of crude oil to realize the electric dehydration treatment of high water-containing crude oil. Experiments show that the electric dehydration efficiency of this dynamic electric dehydration device is higher than that of the device used currently with 0.7% water cut in the oil.