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Integrated Gasification Combined Cycle (IGCC) Process Simulation and Optimization Tool

F. Emun, M. Gadalla, T. Majozi, D. Boer
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This tool can be used to improve the efficiency and environmental performance of integrated gasification combined cycles (IGCC) through an analysis of the operating conditions, together with process integration studies. Pinch analysis principles and process integration insights are then employed to make topological changes to the flow sheet to improve the energy efficiency and minimize the operation costs. Process data for the Texaco gasifier and the associated plants (coal preparation, air separation unit, gas cleaning, sulfur recovery, gas turbine, steam turbine and the heat recovery steam generator) are considered as a base case, and they are simulated using Aspen Plus.