Question: A wetted wall tower is fed with water as the wall liquid and air- NH3 mixture as the central core gas. At a particular

A wetted wall tower is fed with water as the wall liquid and air- NH3 mixture as the central core gas. At a particular level in the tower, ammonia concentration in the bulk of the gas is 0.8 mole fraction and in the bulk of the liquid 0.05 mole fraction. The operation is carried out at 26C and 1 atm and the film coefficients are kx = 0.5309 kgmole / hr.m. mole fraction, ky = 0.4293 kmole / hr.m.mole fraction. Compute the interfacial compositions and mass transfer flux using the overall mass transfer coefficient. The equilibrium data at 26 C: Mole fraction of NH3 in liquid, x in gas, y 0 0 0.06 0.0707 0.1 0.1347 0.25 0.59 0.3 0.92 (16) (Nov/Dec '08)

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