炼油装置低温部位腐蚀机理研究  

Study on Corrosion Mechanism for Low-temperature Locations in Refinery Process Units

作　　者：赵敏[1] 赵恒庆[1] 康强利[1] 

机构地区：[1]中国石油天然气股份有限公司独山子石化分公司,新疆独山子833600

出　　处：《石油化工腐蚀与防护》2008年第2期7-9,共3页Corrosion & Protection In Petrochemical Industry

摘　　要：通过实验室试验,并利用统计分析方法综合考察了介质中硫的质量浓度、pH值及Cl^-的质量浓度在炼油装置低温腐蚀中的影响。结果表明,在炼油装置低温部位,从均匀腐蚀和局部腐蚀角度考察,硫的存在对腐蚀影响不大,而pH值及Cl^-的质量浓度是影响腐蚀的重要因素。在冷凝冷却系统,抑制腐蚀主要以控制Cl^-的质量浓度和pH值为主。The impact of three main corrosion tactors （sultur content, pH, cl-） on corrosion of low - temperature loeations in refinery process units were comprehensively studied through laboratory experiments and statistic analysis. The results show that ,from the view of uniform corrosion and local corrosion, the presence of sulfttr had no obvious effect on corrosion in low - temperature locations. Whereas, pH and Cl- of the mass concentration of arc the major factors for corrosion. In condensate system, Cl - and pH should be controlled to prevent the corrosion.

关 键 词：炼油装置 低温部位 试验 腐蚀机理 统计分析 

分 类 号：TE986[石油与天然气工程—石油机械设备]