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The effect of concentration level on the gas phase absorption coefficient
Author(s) -
Vivian J. Edward,
Behrmann William C.
Publication year - 1965
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.690110417
Subject(s) - mass transfer coefficient , chemistry , mole fraction , inert gas , mass transfer , analytical chemistry (journal) , diffusion , absorption (acoustics) , volumetric flow rate , mass fraction , ammonia , thermodynamics , inert , distilled water , turbulence , chromatography , materials science , organic chemistry , physics , composite material
A theoretical and experimental investigation has been made to determine the effect of the concentration level on the rate of mass transfer of a solute from a nontransfering or inert carrier gas in turbulent flow. Diffusion theory predicts the gas phase mass transfer coefficient to be inversely proportional to the first power of the mean mole fraction of the nontransferring gas and to be a possible function of the rate and direction of mass transfer. The results of an experimental study of the absorption of ammonia from mixtures with nitrogen into distilled water and aqueous ammonia solutions in a short wetted‐wall column verified the predicted inverse relationship between the turbulent gas phase absorption coefficient and the first power of the mean inert mole fractions ranging from 0.068 to 0.934. The data also showed that for the range covered in this investigation there was no significant influence of the mass transfer rate on the product of the coefficient and the mean mole fraction of the inert carrier gas.