X52钢在含H2S水溶液中的腐蚀规律研究
Research on corrosion rules of X52 steel in aqueous solution containing H2S
孙新乐1
作者信息
- 1. 中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南洛阳 471003
- 折叠
摘要
本试验采用高压反应釜对X52钢在不同条件下(温度、H2S浓度、NaCl浓度、介质流速)的H2S腐蚀行为进行了研究,并对试样腐蚀速率和表面腐蚀产物形貌进行评价分析.试验结果表明:(1)当温度低于60℃时,腐蚀速率随着温度升高而增大;温度高于60℃时,随着温度升高腐蚀速率减小,试样表面转化为保护性好、附着力强、致密的腐蚀产物膜;(2)H2S浓度的增加对腐蚀速率无明显的影响;(3)腐蚀速率随着NaCl浓度升高而下降;(4)腐蚀速率随介质流速增大而增大.
Abstract
H2 S corrosion behavior of X52 steel under different conditions(temperature,H2S concentration,NaCl concentration,medium flow rate)was studied by high-pressure reactor.Corrosion rate and surface corrosion product morphology of the samples were evaluated and analyzed.The experimental results showed that:(1)corrosion rate increases with the increase of temperature when temperature is below 60 ℃;corrosion rate decreases with the increase of temperature when temperature is higher than 60 ℃.The surface of samples transform into a corrosion product film with good protection,strong adhesion and high density;(2)the increase of H2 S concentration has no obvious effect on corrosion rate;(3)corrosion rate decreases with the increase of NaCl concentration;(4)corrosion rate increases with the increase of medium flow rate.
关键词
X52/H2S腐蚀/腐蚀产物形貌/腐蚀速率/影响因素Key words
X52/H2 S corrosion/morphology of corrosion products/corrosion rate/influencing factor引用本文复制引用
基金项目
中国石化科技开发项目(08039A190)
出版年
2024
NETL
NSTL
万方数据