Ethylene and propylene are valuable monomers. A key step in the recovery of these materials is fractionation

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Ethylene and propylene are valuable monomers. A key step in the recovery of these materials is fractionation of the olefin from the corresponding paraffin (ethane or propane). These fractionation steps require refrigeration of the overhead condenser and very large distillation columns with many stages. Raising the pressure at which the column operates improves the performance of the refrigeration system but increases the number of stages needed. Formulate the objective function for optimizing the recovery of ethylene from an ethylene-ethane mixture. What are the key constraints? What will be the main trade-offs?

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Chemical Engineering Design

ISBN: 9780128211793

3rd Edition

Authors: Gavin Towler, Ray Sinnott

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