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Gas‐liquid mass transfer in trickle‐bed reactors: Gas‐side mass transfer
Author(s) -
Iliuta Ion,
Iliuta Maria C.,
Thyrion Fernand C.
Publication year - 1997
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270200904
Subject(s) - mass transfer , mass transfer coefficient , chemistry , carbon dioxide , absorption (acoustics) , sodium hydroxide , analytical chemistry (journal) , thermodynamics , chromatography , materials science , organic chemistry , composite material , physics
New data of gas‐liquid mass transfer for cocurrent downflow through packed beds of non‐porous particles are presented. Mass transfer parameters for air/carbon dioxide/water and air/carbon dioxide/sodium hydroxide systems were evaluated by least squares fit of the calculated CO 2 concentration profiles in the gas phase to the experimental values. The dependence of k G a on gas and liquid flow rates is caused by the dependence of gas‐liquid interfacial area, not by the gas‐side mass transfer coefficient k G . In the case of the absorption of dilute carbon dioxide the gas‐side resistance is considerably smaller than the liquid‐side resistance. In the pulse flow regime, gas‐liquid interfacial area calculated from k L a and k L values obtained by physical, respectively, chemical absorption are lower than the gas‐liquid interfacial area evaluated from the measurements under reaction conditions.