碱液氧化分离塔腐蚀原因分析与处理  

Analysis and Treatment of Corrosion of Alkali Oxidation Separation Tower

作　　者：祁有彬 QI You-bin(CNOOC Dongfang Petrochemical Co.,Ltd.,Dongfang 572600,China)

机构地区：[1]中海油东方石化有限责任公司,海南东方572600

出　　处：《化工管理》2022年第20期130-133,共4页Chemical Engineering Management

摘　　要：某公司产品精制装置碱液氧化分离塔发生严重腐蚀,壁厚腐蚀减薄达8 mm。通过对塔内的介质及腐蚀产物的化验分析确定了腐蚀原因,综合考虑施工周期、防腐效果、成本等因素,制定了相应的防腐解决方案,采用环氧涂料体系解决塔内碱腐蚀问题。经过长期跟踪监测,塔内腐蚀得到了有效抑制,延长了设备使用寿命。该方案针对碱腐蚀具有很好的防腐作用,具有广阔的应用与推广前景。Severe corrosion occurred in the lye oxidation separation tower of the product ref ining device.Elemental analysis of the corrosion products was used to determine the cause of corrosion.Comprehensive consideration of factors such as the construction cycle,anticorrosive effect,and cost,the epoxy coating system was used to solve the corrosion problem in the tower.Corrosion is effectively suppressed and the service life of the equipment is extended.This scheme has broad application and promotion prospects.

关 键 词：碱液氧化分离塔 腐蚀原因 防腐措施 

分 类 号：TE624[石油与天然气工程—油气加工工程]