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TitleThe application of the equivalent annulus width concept in thermal diffusion separations
Author(s)Romero, Joaquim José Barbosa
Pinheiro, J. D. R. S.
Issue date1975
JournalChemical Engineering Science
CitationRomero, J. J. B.; Pinheiro, J., The application of the equivalent annulus width concept in thermal diffusion separations. Chemical Engineering Science, 30(12), 1459-1465, 1975
Abstract(s)The equivalent annulus width concept is used to characterize a small commercial thermogravitational hermal diffusion column and its validity checked experimentally by separating batchwise in the column mixtures of n-heptanebenzene with different initial concentrations. The equation of Ruppell and Coull was used to analyse the data in the short separation times range and determine the equivalent annulus width. Good agreement was obtained between the experimental and predicted time-separation curves when using the equivalent annulus width value and on averaged value of the thermal diffusion constant. A new method is presented for the simultaneous determination of the equivalent annulus width and the thermal diffusion constant of a binary mixture from a single set of experimental data.
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AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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