CAJ | 학술논문

原油电脱盐是减缓蒸馏装置腐蚀及降低二次加工装置催化剂中毒的重要工艺,由于加工油种切换频繁和掺炼索鲁士原油对电脱盐装置的平稳运行会造成非常大的影响。通过筛选,发现YS油溶性破乳剂对索鲁士油具有良好的脱盐效果,并对多油种具有良好的适应性;证实在脱盐温度大于125℃时对深度脱盐有明显效果;碱性净化水易致电脱盐排水浑浊。经改造优化后的第Ⅰ、第Ⅲ和第Ⅳ套电脱盐装置运行检测数据表明：通过采用合适的原油破乳剂以及提升电脱盐罐温度至135℃后,脱盐合格率大大提高,其中第Ⅳ套电脱盐装置脱盐合格率连续两年达100%。
원유전탈염시감완증류장치부식급강저이차가공장치최화제중독적중요공예,유우가공유충절환빈번화참련색로사원유대전탈염장치적평은운행회조성비상대적영향。통과사선,발현YS유용성파유제대색로사유구유량호적탈염효과,병대다유충구유량호적괄응성;증실재탈염온도대우125℃시대심도탈염유명현효과;감성정화수역치전탈염배수혼탁。경개조우화후적제Ⅰ、제Ⅲ화제Ⅳ투전탈염장치운행검측수거표명：통과채용합괄적원유파유제이급제승전탈염관온도지135℃후,탈염합격솔대대제고,기중제Ⅳ투전탈염장치탈염합격솔련속량년체100%。
Electro-static desalting is an important process for mitigating the corrosion in crude distillation unit and reducing the poisoning of catalysts in the downstream units.The frequent crude oil variations and the blending of Suolus crude has a great impact on the stable operation of desalting unit.The testing and analysis concluded that the YS oil-soluble demulsifier had a good performance for desalting Suolus crude oil and an excellent adoptability to different crudes.The testing also proved that the desalting result was improved for deep desalting when desalting temperature was higher than 125 ℃.The alkali purified water would easily make desalter blowdown water turbid.The operation data of No.I,III and IV desalting units after optimization revamping show that on-specification rate of desalted crude oil is greatly increased through application of proper demulsifers and raising of desalting drum temperature to 135 ℃.The on-specification rate of desalted oil of No.IV desalter is 100% for consecutive two years.