Answer to Question #223926 in Chemical Engineering for Lokika

Question #223926

Sulphur dioxide is to be scrubbed from an air stream in a small packed tower by contacting it with an organic amine. The feed gas 3% SO2, by volume, and 95% of it is to be absorbed. The total gas rate is 150 m^{3}/h. at 20^{°}C and 1.1 bar absolute pressure. The liquid enters the column at rate of 1.40 kmol / h. Give:the overall mass transfer coefficient, KG=3.2*10^{-4} kmol/m^{2}.s. bar; the effective gas-liquid contact area =105 m^{2} per m^{3} of packed volume; slope of the equilibrium line, m=0.17 . Determine the number of overall gas-phase mass transfer units and the packed height if the column is 1 ft in diameter.

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