超高酸原油的腐蚀规律及影响因素研究  

Research on corrosion law and influencing factors of ultra-high acid crude oil

作　　者：包振宇 徐宇翔 张国信 李朝法 段永锋 BAO Zhenyu;XU Yuxiang;ZHANG Guoxin;LI Chaofa;DUAN Yongfeng(SEG Luoyang R&D Center of Technology,Luoyang 471003,China;China University of Petroleum,Beijing 102249,China;SINOPEC Guangzhou Engineering Co.,Ltd.,Guangzhou 516086,China)

机构地区：[1]中石化炼化工程集团洛阳技术研发中心材料与防腐工程室,河南洛阳471003 [2]中国石油大学(北京),北京102249 [3]中石化广州工程有限公司,广东广州516086 [4]中石化炼化工程集团洛阳技术研发中心,河南洛阳471003

出　　处：《石油化工腐蚀与防护》2022年第2期1-6,共6页Corrosion & Protection In Petrochemical Industry

基　　金：中国石化科技开发项目(318023-1)。

摘　　要：采用高压釜与高温动态模拟腐蚀评价装置等手段,研究了温度和流速对超高酸原油的腐蚀性影响以及不同材料在超高酸原油中的耐蚀性能差别,并将其与API RP581中数据进行了对比。研究表明,随着温度和流速的增大,材料腐蚀速率升高;Q245R,Cr5Mo,304L,316L,317L五种材料耐超高酸原油腐蚀性能依次增强。由于API RP581中高温环烷酸腐蚀数据为预测值,文中的试验数据可为修正API RP581中的腐蚀数据以及为设备和管道的选材提供参考和依据。The effects of temperature and velocity on the corrosion of ultra-high acid crude oil as well as naphthenic acid corrosion resistance of different materials were studied by means of autoclave and high temperature dynamic corrosion evaluation device.The results were compared with the data in API RP581,which showed the corrosion rate increased with the raise of temperature and velocity.The corrosion resistance followed the order of Q245R<Cr5Mo<304L<316L<317L.Since the high-temperature naphthenic acid corrosion data in API RP581 were predicted values,experimental data in this article can be used to correct the data in API RP581,which provides reference and basis for the material selection of equipment and pipelines.

关 键 词：超高酸原油 环烷酸腐蚀 选材 温度 流速 

分 类 号：TE986[石油与天然气工程—石油机械设备]