Mass/heat-exchange network representation of distillation networks

Authors

  • Miguel J. Bagajewicz,

    1. Dept. of Chemical Engineering, University of California, Los Angeles, CA 90024
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  • Vasilios Manousiouthakis

    Corresponding author
    1. Dept. of Chemical Engineering, University of California, Los Angeles, CA 90024
    • Dept. of Chemical Engineering, University of California, Los Angeles, CA 90024
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Abstract

This article introduces the “state space” conceptual framework to process synthesis, which is used to provide a novel representation of a distillation network as a composite heat- and mass-exchange network. This representation suggests that distillation network synthesis may best be viewed as an interacting heat- and mass-exchange network synthesis problem. In that regard, familiar tools (such as pinch diagrams) from both heat-exchange network (HEN) and mass-exchange network (MEN) synthesis are shown to be of use in arriving at energy-efficient distillation network designs. Examples of propylene-propane and solvent-water separations are used to illustrate the proposed conceptual framework.

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