催化裂化装置顶循系统在线除盐技术  

Online desalting technology of top cycle system in catalytic cracking unit

作　　者：王东华 朱彦昊 鲁斌 贾亮 Wang Donghua;Zhu Yanhao;Lu Bin;Jia Liang(PetroChina Daqing Refining&Petrochemical Company,Daqing 163400,China;PetroChina Fushun Petrochemical Company,Fushun 113000,China)

机构地区：[1]中国石油大庆炼化公司,黑龙江大庆163400 [2]中国石油抚顺石化公司,辽宁抚顺113000

出　　处：《炼油与化工》2024年第3期39-42,共4页Refining And Chemical Industry

摘　　要：随着加工原油的多样化和劣质化日趋严重,催化裂化装置设备、管线的腐蚀问题越来越突出,特别是分馏塔顶循流程普遍存在结盐、腐蚀问题。某炼化公司对其180×10^(4) t/a ARGG装置的顶循系统进行在线除盐技术攻关,取得良好的除盐效果和防腐蚀作用。结果表明,应用在线高效微萃取除盐技术,分馏塔顶循环系统腐蚀速率可降至0.10 mm/a,顶循油中氯离子含量小于0.80 mg/kg,盐含量低于1.80 mg/L,完全满足装置长周期平稳运行。With the increasing diversification and inferior quality of processed crude oil,the corrosion problems of catalytic cracking equipment and pipelines were becoming more and more prominent,especially the problems of salt formation and corrosion in the top cycle system of fractionation tower.A refining and chemical company had carried out research on online desalting technology for the top cycle system of its 180×10^(4) t/a ARGG unit,and achieved good desalting effect and anti-corrosion effect.The results showed that the corrosion rate of the top cycle system can be reduced to 0.10 mm/a,the chloride content in the top cycle oil was less than 0.80 mg/kg,the salt content was less than 1.80 mg/L,which can fully meet the long-term stable operation of the unit.

关 键 词：顶循系统 防腐 在线除盐 

分 类 号：TE986[石油与天然气工程—石油机械设备]