A note on the correlation of flooding rates for packed gas‐liquid columns

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Abstract
The following equation, which is derived from an expression previously obtained for liquid‐liquid extraction columns by Dell & Pratt (1951), and which is basically similar to the equation of Bertetti (1942), is proposed for the correlation of flooding rates for packed absorption and distillation columns: magnified image This equation can be reduced to a form resembling the graphical correlation used by Sherwood, Shipley & Holloway (1938). A comparison with the available experimental data shows that agreement is good up to a critical value of the group on the right, beyond which the exponent changes sharply to to − 0·20. Derived values of the constants C2 are given for four types of packing, and the applications and limitations of the equation are discussed.

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