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Sustainability in the Design, Synthesis and Analysis of Chemical Engineering Processes by Heriberto Cabezas, Gerardo Ruiz Mercado

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Chapter Two

Separations Versus Sustainability

There Is No Such Thing As a Free Lunch

L.M. Vane     US Environmental Protection Agency, Cincinnati, OH, United States

Abstract

Separation operations in chemical processes are generally “uphill” tasks—defying natural tendencies. Historically, such separations have been accomplished by applying generous portions of fossil energy and materials, leaving behind a large environmental footprint. In this chapter, progress in reducing this footprint will be discussed with examples in biofuel production, desalination, and carbon dioxide capture.

Keywords

Alternative separation processes; Distillation; Extraction; Membrane-based separation

The Separations Dilemma and Imperative

Industrial separation processes have a ...

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