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近年来,常压塔系统腐蚀已严重威胁到装置的安全生产,降低该系统的腐蚀以确保装置长期运行已成为石化系统亟待解决的问题之一.因此研究腐蚀发生的规律以采取有效的防腐措施,对于延长设备寿命、降低生产成本、保证生产长周期安全运行具有十分重要的作用.针对这一情况,我们对国内炼厂常压塔顶系统腐蚀情况进行了深入研究,探讨了腐蚀原因及机理,提出了解决方法,希望对炼厂防止塔顶腐蚀有所帮助.1常压塔顶系统的腐蚀状况中石化济南分公司5Mt/a常减压装置本周期掺炼进口原油后(原油主要来源为沙特、阿曼、伊朗、
In recent years, atmospheric pressure tower system corrosion has seriously threatened the safety of the plant, reducing the corrosion of the system to ensure the long-term operation of the plant has become one of the problems to be solved in petrochemical systems. Therefore, the law of corrosion to take effective measures to prevent corrosion , Which plays an important role in prolonging the life of equipment, reducing the production cost and ensuring the safe operation of long-term production.In response to this situation, we conducted an in-depth study on the corrosion of atmospheric distillation overhead system in domestic refineries and discussed the causes and mechanism of corrosion , Proposed a solution to the refinery to help prevent top corrosion.1 Erosion status of atmospheric tower system SINOPEC Jinan Branch 5Mt / a atmospheric and vacuum distillation unit This period after the blending of imported crude oil (the main source of crude oil is Saudi Arabia, Oman, Iran,