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Pressure Drop and Mass Transfer Study in Static Mixers with Gas Continuous Phase
Author(s) -
Couvert Annabelle,
Péculier MarieFrance,
Laplanche Alain
Publication year - 2002
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.5450800426
Subject(s) - pressure drop , contactor , mass transfer , static mixer , mechanics , bubble , work (physics) , drop (telecommunication) , flow (mathematics) , mixing (physics) , materials science , volumetric flow rate , thermodynamics , turbulence , mechanical engineering , physics , engineering , power (physics) , quantum mechanics
The aim of this work was to characterize both the influence of the gas and the liquid flow rates on the pressure drop generated by static mixers type Sülzer, and on the mass transfer performances of these gas‐liquid contactors. The originality of this work rests on the use of the static mixers with a gas continuous phase. Several configurations were studied: vertical upward flow, vertical downward flow, and horizontal positions, with one to five mixing elements. It was concluded that the pressure drop is mainly generated by the gas phase, whatever the configuration chosen. Moreover, the volumetric mass transfer coefficients k L a found were lower than those obtained with the same static mixers used in classic conditions (that is with a liquid continuous phase), but greater than values obtained with classic reactors like bubble columns or packed columns. The efficiency of these gas‐liquid reactors was found high, as well as the energy dissipated, unfortunately.