催化裂化装置顶循系统在线除盐技术

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作者:: 王东华1 ，朱彦昊1 ，鲁斌1 ，贾亮2
Wang Donghua 1 ，Zhu Yanhao 1 ，Lu Bin 1 ，Jia Liang 2

作者单位:: 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
1. PetroChina Daqing Refining & Petrochemical Company，Daqing 163400，China；2. PetroChina Fushun Petrochemical Company，Fushun 113000，China

摘要:: 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180×104 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。

Abstract: 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 180×104 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.