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Gas absorption with instantaneous chemical reaction in a laminar falling film
Author(s) -
Basu Rahul,
Ray P.,
Dutta B. K.
Publication year - 1986
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450640524
Subject(s) - dimensionless quantity , laminar flow , thermal diffusivity , absorption (acoustics) , penetration (warfare) , chemical reaction , chemistry , falling (accident) , analytical chemistry (journal) , thermodynamics , materials science , chromatography , composite material , physics , medicine , biochemistry , environmental health , operations research , engineering
Gas absorption in a laminar falling film with instantaneous chemical reaction with a reactant in solution has been theoretically analysed using a boundary immobilization technique. The profile of the reaction front, concentration distributions, the dimensionless quantity of gas absorbed and the enhancement factor have been computed for different values of the diffusivity ratio D and the concentration ratio β. Although the concentration distribution of the dissolved reactant is dependent on D and β, that for the dissolved gas is nearly independent of these parameters for small depth of penetration. The enhancement factor shows a convex profile for small D, an explanation for which has been provided.