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Estimate the mass transfer coefficient, kc, in a wetted-wall column (wetted with benzene) for the transfer of benzene into carbon dioxide at 0oc. the carbon dioxide gas velocity through the column is 1.25 m/s. the diameter of the column is 0.16 m. assume that the benzene concentration in the carbon dioxide gas is very low.
mass density of co2 = 1.966 kg/m3
viscosity of co2 = 1.35 x 10-5 kg/m? s
diffusivity of benzene in co2 = 5.28 e-6 m2/s
molecular weight of co2 = 44 g/g mol
molecular weight of benzene = 78 g/g mol
note that the friction factor, f, can be correlated with the reynolds number, re, as follows: f/2 = 0.023re^(-0.2) for re between 5,000-200,000
calculate kc based on (a) the reynolds analogy, (b) the chilton-colburn analogy, (c) mass transfer correlation (use the table given in the class). which mass transfer coefficient is more accurate and why?
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Estimate the mass transfer coefficient, kc, in a wetted-wall column (wetted with benzene) for the tr...
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