循环水高硬度条件下氯离子的腐蚀控制.pdf

Petrochemical 830019 1 2 0 0 m g / L~1500mg/L TE986; TG172.5 A 1008-7818(2010)03-0025-04 The Corrosion Control to the Chliorine Ions in the High Rigidity Circulating Cooling Water GUO Ya-li, YU Su-qing, Nuer Jiang (Research Institute of Urumqi Branch Co., Petrochina,Urumqi 830019, China) Abstract: The corrosion of the stainless steel facility caused by the chloride ions was raised as the concentrate rate rose in the petrochemical plants. Experiments were carried out and the results showed that, the corrosion caused by chloride ions could be controlled when the rigidity of the circulating water was in the range of 1200 mg/L to 1500 mg/L. Key words: circulating cooling water; chloride ions; corrosion; high rigidity 0 70 PAPEMP 1 2008 3 pH 8.06 ( s/cm) 636 (mg/L) 0.47 (mg/L) 15.7 (mg/L) 0.07 600~700 mg/L (mg/L) 52.9 (mg/L) 150.12 (mg/L) 252.8 (mg/L) 192.25 (mg/L) 60.5 (mg/L) 87.03 Ca2+ Mg2+