Superstructure Optimization Approach for Optimal Design of a Petroleum Refinery Topology with Heat Integration

Designing petroleum refineries that satisfies multiple economics, operations, and environmental constraints is a highly complex task. The objective of this project is to obtain a mathematically viable model to determine the optimal topology for a petroleum refinery with incorporation of heat integration. Naphtha produced exiting from Atmospheric Distillation Unit (ADU) is chosen as the superstructure, meanwhile Expanded Linear Programming (LP) Transshipment Model and Mix-Integer Linear Programming (MILP) Transshipment Model are used as the energy constraints subsequently with linear yield-based material balances to generate the optimal refinery topology with its associated optimal design parameters that achieve the maximum profit and least energy consumption. Implementing heat integration features in a refinery design model will enable us to achieve an optimal topology that incorporates the best alternatives that offers minimum operating cost in terms of minimum utility cost as well as minimum capital cost.