According to the characteristics of high salinity Yellow River water and the working condition of circulating water system, a process for Yellow River water pretreatment and a high-condensive water quality stabilization technology: using mixed water (Yellow River raw water and pretreated Yellow River water) as the make-up water were developed and applied in the circulating cooling water system of a large-scale ethylene unit. The in-suit monitoring results showed that, the average corrosion rate and adhesion rate of the test tubes were 0.0186 mm/a and 5.15 mg/(cm2 · month) respectively, which were superior to the examination indexes of China Petrochemical Corporation, fully met the requirement of production facilities, and obtained a significant economic and social benefit.%针对黄河水的高含盐水质特点和循环水系统的工况条件,研究开发了黄河水预处理工艺及以黄河水混合水为循环冷却水补充水的高浓缩倍数水质稳定技术.该技术在大型乙烯装置循环冷却水系统进行工业应用,现场监测试管平均腐蚀速率为0.018 6 mm/a,平均黏附速率为5.15 mg/(cm2·月),优于中国石化的相关考核指标,完全满足生产装置对循环水的要求,具有显著的经济效益和社会效益.
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