石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (12): 11-16.

• 加工工艺 • 上一篇    下一篇

双进油双电场电脱盐脱水技术及其在大港石化的应用

陶雪,刘明冲,韩晶,李纲纲   

  1. 中国石油大港石化分公司
  • 收稿日期:2016-04-19 修回日期:2016-07-05 出版日期:2016-12-12 发布日期:2016-11-29
  • 通讯作者: 陶雪 E-mail:txyztxyz1124@sina.com
  • 基金资助:
     

DUAL OIL INLETS & DUAL ELECTRIC FIELDS DESALTER/DEHYDRATOR TECHNOLOGY AND ITS APPLICATION IN DAGANG PETROCHEMICAL COMPANY

    

  1.  
  • Received:2016-04-19 Revised:2016-07-05 Online:2016-12-12 Published:2016-11-29
  • Supported by:
     

摘要: 中国石油大港石化分公司5.0 Mt/a电脱盐装置原采用高速电脱盐技术和交直流电脱盐技术,投运之后脱后盐含量、水含量均不合格。采用双进油双电场技术进行改造后,脱后原油盐(NaCl)含量(质量浓度)小于3 mg/L、水质量分数小于0.2%,合格率为100%;脱后排水油含量(质量浓度)小于150 mg/L,合格率95%~100%;在脱钙剂注入量为25~35 μg/g时,脱后原油钙质量分数小于10 μg/g 。

关键词: 双进油, 双电场, 电脱盐, 电脱水

Abstract: A combined technologies of high speed electrical desalting technology and AC/DC electric desalting technology were originally used in Petrochina Dagang Petrochemical Company electrical desalting device with a capacity of 5 Mt/a. However, the salt and water content was unqualified. After revamping with dual oil inlets & dual electric fields technology, the salt and water content in crude oil treated is less than 3 mg/L and 0.2%, respectively with thequalified rate of 100%. The oil content in discharged sewage is less than 150 mg/L, the qualified rate is 95%-100%. The calcium content in oil treated is reduced to less than 10 μg/g when the dosage of decalcifing agent is 25-35 μg/g.

Key words: dual oil inlets, dual electric fields, electric desalter, electric dehydrator

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