Identification of Virtual Analyzers of Products' Quality Produced at Raw and Slop Oil Mixture with off Spec Products Distillation Units

The object of the study is crude oil distillation unit that operates in conditions of strong variability of feed composition. The unit's feed components are crude oil, oil from oil traps and off spec products, at that feed components are mixed in a wide ratio range. It is shown that for objects of this type, it is necessary, along with other input variables, to use feed characterizing parameters. Model of the temperature of final boiling point of 105-180 °C cut from ELOU-AT-1 (Electrical Desalting Unit) of LLC “KINEF” has been initialized and tested.