Pretreatment of Crude Oil by Ultrasonic-electric United Desalting and Dewatering  

作　　者：叶国祥 吕效平 彭飞 韩萍芳 

机构地区：[1]Institute of Sonochemical Engineering, Nanjing University of Technology, Nanjing 210009, China

出　　处：《Chinese Journal of Chemical Engineering》2008年第4期564-569,共6页中国化学工程学报（英文版）

摘　　要：A technology of ultrasonic-electric united desalting and dewatering of crude oil is studied. The ultrasonic setup is designed to form a standing-wave field, which is more efficient for agglomeration of water particles. The desalting and dewatering results of the ultrasonic-electric united process are compared with those of the electric process. For high salt-contenting crude oil （40-70 mg·L ^-1）, the salt content is still above 10.0 mg·L^-1 after crude oil has been treated by two-stage electric desalting process in refinery, which cannot meet the need of refinery. Ultrasonic-electric united process is a novel technology for treating the high salt-contenting oil. On the optimal operating conditions of the ultrasonic-electric united process, the salt content of crude oil can be reduced from 67 5 mg·L^-1 to 3.97 mg·L ^-1 by one-stage ultrasonic-electric united process, and the water content falls below 0.3% （by volume）. The results show that the ultrasonic-electric united process is more effective than the electric process in high salt-contenting oil desalting. This technology should be useful in the refinery process.一种技术超声电原油脱盐统一并且除去被学习。超声的安装被设计形成一个看台波浪领域，它为水粒子的凝块是更有效的。超声电的统一过程的脱盐并且除去的结果与电的过程的那些相比。为高咸满足的原油(40-70 mg 路 L ? 1 ) ，盐内容仍然在 10.0 mg 路 L 上面 ? 1 被二阶段的电的脱盐过程在精炼厂在原油以后对待，它不能满足精炼厂的需要。超声电的统一过程是为对待高咸满足的油的一种新奇技术。在超声电的统一过程的最佳的操作条件上，原油的盐内容能从 67.5 mg 路 L 被减少 ? 1 ～ 3.97 mg 路 L ? 1 由一个阶段，超声电的统一过程，和水内容低于 0.3% 掉落(旁边卷) 。结果证明超声电的统一过程是比在脱盐的高咸满足的油的电的过程更有效的。这种技术应该在精炼厂过程是有用的。

关 键 词：crude oil ultrasonic-electric united process DESALTING DEWATERING 

分 类 号：O6[理学—化学]