焊管Issue(11)：15-19,5.
喹啉缓蚀剂对N80石油管道钢小孔腐蚀的影响
Influence of Quinoline Corrosion Inhibitor on Micropore Corrosion of N80 Petroleum Pipeline Steel
摘要
Abstract
Simulating micropore corrosion of pipeline in petroleum exploitation environment, it studied the influence of quinoline corrosion inhibitor on micropore corrosion of N80 pipeline steel in 0.5%CH3COOH+ 5%NaCl saturated H2S solution system, through analysis on corrosion medium concentration of occlusion area inside and outside solution ,electrochemical analysis and corrosion morphology observation of metal surface. The result indicated that at 55℃with concentration of QA corrosion inhibitor increasing in solution, the concentration of Cl-and S2-gradually decrease in occlusion area, and control pH value in occlusion area solution decreasing can increase corrosion inhibition efficiency gradually. When adding 0.6%~0.8%QA corrosion inhibitor, the inhibition rate of micropore can reach more than 96.58%.关键词
石油管道/N80/喹啉缓蚀剂/小孔腐蚀/缓蚀率Key words
petroleum pipeline/N80/quinoline corrosion inhibitor/micropore corrosion/inhibition rate分类
能源科技引用本文复制引用
陈蕊,李善建,冯拉俊,李向红..喹啉缓蚀剂对N80石油管道钢小孔腐蚀的影响[J].焊管,2013,(11):15-19,5.基金项目
陕西省防腐重点实验室支持项目（2011BS2S011）。 （）
