Sherwood’s Plot: Fundamental or Empirical?

Document Type : Research Note

Author

Department of Chemical Engineering and LEPABE – Laboratory for Process Engineering, Environment, Biotechnology and Energy, University of Porto, Rua Dr. Roberto Frias, 4200-264 Porto, PORTUGAL

Abstract

There are several examples of heuristic rules first proposed from empirical observation, which eventually earned physicochemical validity after the fundamental derivation of a posteriori. This may be the case of Sherwood’s plot – for which a sound rationalization from first principles, entailing enthalpy and mass balances, is provided here; it applies to (fine) chemicals undergoing concentration followed by purification at large, where such costs override the whole processing.

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References

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Iranian Journal of Chemistry and Chemical Engineering
Volume 39, Issue 1 - Serial Number 99
January and February 2020
Pages 193-199

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