成品油输送管道内腐蚀影响因素及防护措施研究  

Study on Influencing Factors and Protective Measures of Internal Corrosion of Product Oil Pipeline

作　　者：吴育卫 冯中远[2] 王业玲 温业隆 WU Yu-wei;FENG Zhong-yuan;WANG Ye-ling;WEN Ye-long(Logistics Center of Sinopec Hainan Oil Company,Haikou 571923,China;Hainan Petroleum Branch of Sinopec Sales Co.,Ltd.,Haikou,570311,China;Hainan Industrial Research Institute,Haikou,570203,China)

机构地区：[1]中石化海南石油分公司物流中心,海口571923 [2]中国石化销售股份有限公司海南石油分公司,海口570311 [3]海南省工业研究所,海口570203

出　　处：《当代化工》2021年第9期2037-2040,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金面上项目(项目编号:51474219)。

摘　　要：成品油长距离输送容易引起管道内壁腐蚀,从而影响成品油的安全输送。因此,以国内某成品油输送管道钢材和油样为研究对象,开展了成品油输送管道内腐蚀影响因素研究实验,并针对性地提出了管道内防腐蚀措施建议。静态挂片腐蚀实验结果表明,0号柴油对输送管道钢材的静态腐蚀速率略大于90号汽油和93号汽油,腐蚀时间越长,静态腐蚀速率越小。动态腐蚀实验结果表明,3种成品油中0号柴油的动态腐蚀速率最大,成品油流速越大,动态腐蚀速率越大;实验时间越长,动态腐蚀速率越小;成品油含水量越高,动态腐蚀速率越大。针对成品油管道内腐蚀影响因素研究结果,可以通过改变金属材质、管道内涂层、改善成品油性能以及电化学防护等方式来降低成品油对输送管道内壁的腐蚀速率,从而有效延长成品油输送管道的使用寿命。The long-distance transportation of product oil is easy to cause the corrosion of pipeline inner wall, which affects the safe transportation of product oil. Therefore, taking the steel and oil samples of a domestic product oil pipeline as the research object, the research experiment on the influencing factors of internal corrosion of product oil pipeline was carried out, and the corresponding suggestions on anti-corrosion measures were put forward. The results of static coupon corrosion test showed that the static corrosion rate of No.0 diesel oil on pipeline steel was slightly higher than that of No.90 gasoline and No.93 gasoline. The longer the corrosion time as, the smaller the static corrosion rate was. The results of dynamic corrosion test showed that the dynamic corrosion rate of No.0 diesel oil was the highest among the three kinds of product oil, and the higher the flow rate of product oil was, the higher the dynamic corrosion rate was;the longer the test time was, the smaller the dynamic corrosion rate was;the higher the water content of product oil was, the greater the dynamic corrosion rate was. According to the research results of influencing factors of internal corrosion of product oil pipeline, the corrosion rate of product oil on the inner wall of pipeline can be reduced by changing the metal material, internal coating of pipeline, improving the performance of product oil and electrochemical protection, so as to effectively extend the service life of product oil pipeline.

关 键 词：成品油 输送管道 内腐蚀 影响因素 防护措施 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]