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Influence of dust particles on the hydrodynamic behavior and mass transfer in droplet column
Author(s) -
Muller Nathalie,
Benadda Belkacem,
Otterbein Michel
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.270200706
Subject(s) - mass transfer , range (aeronautics) , mechanics , particle (ecology) , column (typography) , particle size , mass transfer coefficient , chemistry , bubble , thermodynamics , materials science , physics , geology , composite material , engineering , oceanography , connection (principal bundle) , structural engineering
Bubble columns are commonly used in industry for polluted gas treatment. Based on the same principle, the droplet column which is not widely known in the literature, uses much higher gas velocities, up to 14 m/s. This study concerns the hydrodynamics and mass transfer in this apparatus, in presence or absence of solid particles. Our results have demonstrated the impact of dusts on mass transfer performance giving rise to an increase in the k L a L coefficient with decreasing particle size. However, no influence of dust on the hydrodynamics of the column has been demonstrated within the studied particle size range. A study of liquid holdups obtained by three different methods is also carried out. Our results are comparable, thus validating the methods used.