常减压装置3级电脱盐投用效果分析

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作者:: 张晓琳1 ，李博文2 ，张公鑫1 ，侯庆东1 ，韩纪宇1
Zhang Xiaolin 1 ，Li Bowen 2 ，Zhang Gongxin 1 ，Hou Qingdong 1 ，Han Jiyu 1

作者单位:: 1.中国石油辽阳石化公司，辽宁辽阳 111003；2.中国石油国际勘探开发有限公司，北京 100034
1. PetroChina Liaoyang Petrochemical Company，Liaoyang 111003，China；2. China National Oil and Gas Exploration and Development Company Ltd.，Beijing 100034，China

关键词:: ：常减压；电脱盐；腐蚀
atmospheric and vacuum plant；electrodesalination；corrosion

摘要:: 针对常减压装置2019年前因原油中腐蚀介质含量高，反复出现腐蚀泄露和设备结垢此

问题，结合腐蚀机理和装置实际情况，利用检修时机对装置进行优化，增加 1个电脱盐罐，投

用 3级电脱盐流程后，原油中的无机盐和水得以进一步脱除，脱后原油盐含量和水含量明显

降低，装置腐蚀在线监测数据显示，腐蚀速率得到极大改善。

Due to the high content of corrosive media in crude oil, corrosion leakage and equipment scaling occurred repeatedly in

atmospheric and vacuumplant before 2019. Combined with the corrosion mechanism and the plant actual situation, it optimizedthe

plantduring the overhaul period, added an electrodesalination tank, and put the three-stage electrodesalination process into use to

make the inorganic salts and water in crude oil further removed. After that, the salt and watercontent was decreased obviously, and

the corrosion rate was greatly improved according to the on-line corrosion monitoring data.