丙烷储罐湿硫化氢腐蚀监测技术  

A Monitoring Technique for Wet H_2S Corrosion in Propane Tank

作　　者：欧阳跃军[1] 余刚[1] 吴运东[1] 韩恩厚[2] 吴汉平 黄伟国 

机构地区：[1]湖南大学化学化工学院 [2]中科院金属研究所,辽宁沈阳110016 [3]中石化集团茂名石化公司,广东茂名525024

出　　处：《湖南大学学报（自然科学版）》2007年第1期60-63,共4页Journal of Hunan University:Natural Sciences

基　　金：湖南省教育厅科研项目(06B073)

摘　　要：钯合金膜氢传感器、恒电势仪、电脑等构成腐蚀监测系统.钯合金膜氢传感器的信号稳定、可靠,由氢传感器检测氢渗透的稳态电流密度,通过16MnR钢的腐蚀速率随稳态氢渗透电流密度变化的方程,计算设备内部湿硫化氢腐蚀速率.现场试验证明该监测系统可用于监测丙烷储罐的硫化氢腐蚀速率和评估设备的安全运行状态.The corrosion monitoring system was composed of a hydrogen sensor with Pd76Ag25 alloy film, a model CP5 potentiostat and a computer. The hydrogen sensor signal was steady and reliable. The equations between 16MnR steel corrosion rate and steady current density of hydrogen permeation were used to calculate the wet H2S corrosion rate of the interior of the equipment by detecting the hydrogen permeation. The in-situ test showed that the monitoring system could be used to monitor the wet H2S corrosion rate of propane tank and to evaluate the safety state of the equipment operation.

关 键 词：湿硫化氢腐蚀 氢渗透 氢传感器 监测 丙烷储罐 

分 类 号：TG172.3[金属学及工艺—金属表面处理]