Open AccessAbsorption in a three-phase fluidized bed II: Mass transfer investigations
Author(s) -
M Srdjan Pejanovic,
V Radmila Garic-Grulovic,
R Predrag Bozalo
Publication year - 2003
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0308330p
Subject(s) - mass transfer , mass transfer coefficient , absorption (acoustics) , diethanolamine , analytical chemistry (journal) , volumetric flow rate , inert , phase (matter) , materials science , inert gas , chemistry , chromatography , thermodynamics , composite material , organic chemistry , physics
The absorption of carbon dioxide in aqueous diethanolamine solutions was carried out in a three-phase fluidized bed with inert spherical packing. The rate of absorption was calculated on the basis of measuring the concentration change in the liquid phase on-line by a conductivity probe. It was shown that the Danckwerts plot method might be successfully used to simultaneously determine the effective interfacial area and both the gas and liquid-side mass transfer coefficients. While the gas-side mass transfer coefficient is independent of the liquid flow rate, the effective interfacial area and liquid-side mass transfer coefficient increase with increasing liquid flow rate