摘要
主要介绍了硝酸对石化装置中的不同材质的冷换设备及锅炉换热设备的除垢应用情况、最佳硝酸酸洗缓蚀剂的选择．该技术在锦州石化公司炼油厂和大庆炼油厂应用时取得了良好的效益．
The application of nitric acid to remove foul in cool-exchange equipment and boiler heat-exchange equipment with different materials is introduced chiefly.The best inhibitor choice of nitric acid cleaning is recommended.The better application in Jinzhou petrochemical company refinery and Daqing refinery had made good benifit.
关键词
石化装置
锅炉
硝酸
除垢
化学清洗
酸洗
petrochemical unit boiler nitric acid removal of foul application
