塔河稠油电脱盐工艺优化研究  

Study on optimization of electric desalting process for Tahe thick oil

作　　者：翟若昊 申明周 王雪 ZHAI Ruohao;SHEN Mingzhou;WANG Xue(Luoyang R&D Center of Technology,Sinopec Engineering(Group)Co.,Ltd.,Luoyang 471003,China)

机构地区：[1]中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南洛阳471003

出　　处：《石油化工腐蚀与防护》2023年第5期5-9,共5页Corrosion & Protection In Petrochemical Industry

基　　金：中国石化科技开发项目“沸腾床加氢工艺原料适应性研究及产物分离工程技术开发”(22115A150)。

摘　　要：某炼化企业原油性质持续恶化,原油盐含量、运动黏度持续上升,通过常规的电脱盐工艺难以达到较好的脱水脱盐效果。针对该企业加工主体原油存在的高密度、超高盐含量、高沥青质、胶质含量、油品性质恶劣等问题,实验室通过强化水洗过程以及注脱盐助剂的方式,优化了塔河稠油的脱水脱盐工艺。试验结果表明:在常规电脱盐试验之前,原油大量注水洗涤,强化水洗过程,三级脱盐试验中每级另加注脱盐助剂50μg/g;三级脱后盐质量浓度小于5 mg/L,脱后含水小于0.3%,对解决原油脱水脱盐难题,实际操作工艺优化具有指导意义。The properties of crude oil in a refining and chemical enterprise deteriorates,and the salt content and kinematic vis⁃cosity continues to rise.It is difficult to achieve good dehydration and desalination results through conventional electric desalting processes.In order to solve the problems of high density,high salt content,high asphaltene content,gum content of the crude oil processed by the enterprise,the dehydration and desalination process of Tahe thick oil was optimized by strengthening the water washing process and injecting desalting additives.Before the conventional electric desalting test,a large amount of water was in⁃jected to wash the crude oil;meanwhile,50μg/g desalination additives was added to each stage of the three⁃stage desalination test.The experimental results showed that the salt concentration was less than 5 mg/L and the water content was smaller than 0.3%after the three⁃stage desalination,which guided significance for solving the problem of crude oil dehydration and desalina⁃tion as well as optimizing the actual operation process.

关 键 词：塔河稠油 电脱盐 强化水洗 脱盐助剂 

分 类 号：TE624.1[石油与天然气工程—油气加工工程]