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Measured plate efficiencies and values predicted from single‐phase studies
Author(s) -
Rush F. E.,
Stirba Clifford
Publication year - 1957
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690030311
Subject(s) - mass transfer , chemistry , sieve (category theory) , nitrobenzene , phase (matter) , analytical chemistry (journal) , atmospheric pressure , desorption , methyl isobutyl ketone , thermodynamics , chromatography , ketone , meteorology , adsorption , organic chemistry , physics , mathematics , combinatorics , catalysis
Plate efficiencies measured on 18‐in.‐diam. sieve plates are reported for the acetic acid‐water system and for the methyl isobutyl ketone‐water system at atmospheric pressure. In the former system the major resistance to mass transfer is in the gas phase; liquid‐phase resistance to mass transfer is controlling in the latter. Efficiencies are also reported for the aniline‐nitrobenzene system (gas‐phase resistance controlling) at 5 mm. Hg absolute on 6‐in.‐diam. sieve plates. Pure gas‐ and liquid‐phase efficiencies for both plate designs were determined by the adiabatic humidification of air and the desorption of oxygen from water into air. Predicted values of plate efficiency for each of the binary systems studied were computed from the pure phase efficiencies according to the procedure outlined by Gerster et al. A comparison between measured and predicted efficiencies is presented as a guide for future research in this field.