常减压蒸馏装置电脱盐优化操作及技术研究

发布时间：2019-07-22 13:51

【摘要】：介绍了某常减压蒸馏装置高速电脱盐工艺运行状况,针对进口原油种类、混炼比例变化较为频繁的工况,优化确定电脱盐混合强度和温度的操作优化区间,确定反相破乳剂和增脱剂的投加量。结果表明,当一级进口和二级进口的混合压差控制为50 k Pa和60 k Pa、电脱盐温度控制在125℃、反相破乳剂投加量35μg/g、增脱剂投加量40.5μg/g时,脱前盐含量下降至15.68 mg/L,脱后原油平均值下降至1.84 mg/L,脱除率91.5%,含盐3 mg/L合格率100%、2 mg/L以下为74.24%,金属离子下降74.8%,装置腐蚀控制良好,外排污水达到环保指标要求。
[Abstract]:The operation status of high speed electric desalination process in an atmospheric and vacuum distillation unit is introduced. according to the types of imported crude oil and the frequent variation of mixing ratio, the operation optimization range of electric desalination mixing strength and temperature is optimized, and the dosage of inverse demulsifier and demulsifier is determined. The results show that when the mixed pressure difference between primary and secondary imports is controlled at 125 鈩，

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