电脱盐装置应对高含水原油加工的措施及建议  

MEASURES AND SUGGESTIONS FOR ELECTRIC DESALTING SYSTEM DEALING WITH HIGH-WATER CRUDE OIL

作　　者：沈伟[1] 

机构地区：[1]中国石化荆门分公司,湖北荆门448039

出　　处：《石油炼制与化工》2013年第11期75-80,共6页Petroleum Processing and Petrochemicals

摘　　要：中国石化荆门分公司针对1.6Mt/a电脱盐装置加工高含水原油过程中出现的电脱盐电流超高跳闸、冲塔事故以及严重带油等问题,先后对电脱盐装置进行了脉冲技术和三级电脱盐改造,解决了初馏塔冲塔问题,脱盐率上升至96.90%,脱盐合格率达到93.21%;并且提出了优选原油破乳剂、在原油罐区使用原油预处理剂、新增电脱盐乳化液排放流程等建议,以改善加工高含水原油的电脱盐装置运行状况。The troubles of over current tripping, flooding and serious oil carrying in the discharged water from the first stage desalting unit often appear when processing the crude oil with high water con tent in the 1.6 Mt/a desalting unit in SINOPEC Jingmen Company. To solve these problems, the im proved pulse and desalting techniques were adopted. Then the flooding phenomenon is disappeared, de salination rate is up to 96.90% and desalination pass rate is over 93.21%. Furthermore, several propos als were suggested in order to improve the electric desalination, such as optimizing demulsifier, using crude oil pretreatment agent in crude oil tank, and adding the new flowpath of electric desalination sew age discharge.

关 键 词：电脱盐 原油 含水量 破乳剂 预处理 

分 类 号：TE624.1[石油与天然气工程—油气加工工程]