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- W4229571567 abstract "The values of effective interfacial area, a, and liquid side mass transfer coefficient, kLa, were obtained in 0.385, 0.57 and 1.0 m i.d. horizontal agitated contactors by using chemical methods. Propeller type of impellers were employed for agitation. Two modes of operation were studied: (i) surface aeration and (ii) sparging of gas. The impeller speed was varied from 50 to 700 rev/min, and the nozzle gas velocity was varied from 40 to 160 m/s. The effects of impeller spacing, liquid submergence and nozzle gas velocity on the values of a and kLa were investigated. A scale-up criterion is discussed. On a obtenu, au moyen des méthodes chimiques, les valeurs de la surface interfaciale effective a et du coefficient du transfert latéral de masse de liquides kLa, dans des contacteurs horizontaux et agités dont les diamètres intérieurs étaient respectivement 0.385, 0.57 et 1.0 mètre. On a utilisé, pour l'agitation, des rotors à hélice. On a étudié deux modes d'opération, à savoir (i) l'aération de la surface et (ii) le barbotage de gaz. On a fait varier la vitesse des rotors entre 50 et 700 tours à la minute et celle du gaz giclé entre 40 et 160 mètres à la seconde. On a étudié les effets de l'espacement des rotors, de la submersion des liquides et de la vitesse du gaz giclé sur les valeurs de a et kLa étudiées. On discute un critère à échelle accrue." @default.
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- W4229571567 date "1976-12-01" @default.
- W4229571567 modified "2023-10-16" @default.
- W4229571567 title "Mass transfer characteristics of horizontal agitated contactors" @default.
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- W4229571567 doi "https://doi.org/10.1002/cjce.5450540614" @default.
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