Abstract:

The flowsheeting for hydrocracking is made up of reactor and fractionating tower. Since lumped parameters of the two parts are not the same，using a single group of lumped parameters may reduce the precision of the model. In this paper，the method for lumped parameter conversion is introduced. Based on the quality and volume of the output of the reactor，the quality and volume of virtual components are worked out after interpolation，cleavage and normalization for the distillation curve of the output of the reactor. At last，the lumped parameters for the fractionating tower can be figured out with the quality and volume of virtual components. The method can evidently increase the precision of the model.