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Pumps and compressors for supercritical extraction: design, characteristics and installation

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Extraction of Natural Products Using Near-Critical Solvents

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Abstract

Supercritical extraction processes entail pumping, ducting and metering the flow of fluids over a very wide range of conditions. These may range from pressures not far above the vapour pressure of the subcritical fluid in the solvent recovery stage, to pressures upwards of 400 bar for the supercritical fluid in the main extraction unit. This range of conditions is almost unique to supercritical extraction processes, although there are on the horizon additional potential applications for supercritical fluids and these will require similar high pressure pumps and compressors [1–5]. These potential applications include the use of supercritical reactions and also the production of fine powders and other deposits by controlled expansion of solutions in supercritical solvents (see chapter 3). High pressure machinery, such as pumps and compressors, are at the very core of all high pressure plant, and influence the economy, safety and reliability of the plant in a most important manner [6].

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  1. G. Vetter
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Editors and Affiliations

  1. School of Chemical Engineering, University of Birmingham, UK

    M. B. King  & T. R. Bott  & 

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© 1993 Springer Science+Business Media Dordrecht

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Vetter, G. (1993). Pumps and compressors for supercritical extraction: design, characteristics and installation. In: King, M.B., Bott, T.R. (eds) Extraction of Natural Products Using Near-Critical Solvents. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2138-5_9

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  • DOI: https://doi.org/10.1007/978-94-011-2138-5_9

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4947-4

  • Online ISBN: 978-94-011-2138-5

  • eBook Packages: Springer Book Archive

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