The present invention concerns a method of providing advisory controls for a desalter system. The method allows a user to continuously monitor performance of the desalter system, to continuously monitor position of the emulsion band (or rag layer), to control the emulsion band using demulsifiers, and to recommend to users how to maintain optimal pressure drop at the mixing device of the desalter system. This is achieved by using a first principles based model combined with a sensor to measure the position, quality and size of the emulsion band. The first principles based model takes into account the geometry of the desalter system, physical properties of the crude oil and water, as well as the operating conditions. Thus, the method provides users with sensing of an emulsion layer through direct measurements and also gives recommendations on appropriate corrective actions to be initiated during upsets.
本发明涉及一种为脱盐器系统提供咨询控制的方法。该方法允许用户持续监控脱盐器系统的性能,持续监控乳化带(或抹布层)的位置,使用破乳剂控制乳化带,并向用户建议如何在脱盐器系统的混合装置上保持最佳压降。这是通过使用基于第一原理的模型结合传感器来测量乳化带的位置、质量和大小来实现的。基于第一原理的模型考虑了脱盐系统的几何形状、原油和
水的物理性质以及操作条件。因此,该方法可通过直接测量为用户提供乳状液层的感知,还能在发生故障时提供适当的纠正措施建议。