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Optimize a licensor's design using pinch technology. K.K. Trivedi et al. Hydrocarbon Processing, May 1996, 75(5), 113--126.

A new procedure using pinch technology process design aspects is discussed. Nine procedural steps are described. A case study reviews a naphtha cracking process with a nominal capacity of 400000 m. tons/yr ethylene and 200000 m. tons/yr propylene. The project is described and illustrated and effects of process variables are discussed. Interactions between various utilities are reviewed and marginal utility costs are tabulated. Operations discussed include feed preparation, cracking furnaces, dilution steam generation, oil and quench water, cold end analysis and optimization of splitter columns. Ethylene and propylene refrigeration system design and heat recovery is discussed. Savings in energy and capital costs are described. 12 refs.

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