A Computer Simulation Model Applied to Design Problems of a Petrochemical Complex

Abstract

This paper describes a computer simulation model which was developed by BP Chemicals International and applied to some of the design problems of a petrochemical complex. The individual plants in this type of complex are closely interlinked in terms of input and output of raw materials, usage from common storage tanks and utilities requirements. Thus decisions taken within a particular area can have serious effects on overall site performance. The simulation model was constructed to assist management in evaluating the consequences of alternative design decisions.

The structure and data requirements of the model are described and special mention is made of the decision rules used to arrive at a feasible mass balance. Limitations of the model are discussed and some sample applications are presented, including the problem of the sizing of storage tanks.