Determine the overall coefficient

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Reference no: EM131310727

An engineer at a pulp plant is considering the feasibility of sparging a waste gas stream containing a small concentration of chlorine gas into a chlorine-bleaching unit in order to augment the chlorine requirements for the unit. In this processing unit, the waste gas stream at 1:013 × 10⁵ Pa containing 0.2 mol% chlorines at the flow rate of the streams is bubbled countercurrent to the absorbing water stream. The gas film coefficient, k_y, is 1 kg mol/m² h (?y mole fraction) and the liquid-film coefficient, k_x, is 10 kg mol/m² h (?x mole fraction). The Henry's law constant, H, is 6:13 × 10⁴ Pa/ (kg mol/m³). The gas stream, containing 0.2 mol% chlorine gas, is in contact with the aqueous stream containing 2:6× 10^-3 kg mol Cl₂/m³.

Determine

a. the overall coefficient, K_x;

b. the chlorine molar flux;

c. the interfacial compositions;

d. the percent resistance to mass transfer in the liquid phase.

Reference no: EM131310727

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