Determine height of ceramic packing required in the absorber

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Reference no: EM131310495

An absorber is to be designed for reducing a process offgas, initially containing 12.5% to 0.4% HCl by volume. HCl-free water at 293 K and 1.013×10⁵ Pa pressure will be fed to the top of a packed, 0.6-m-diameter column, flowing countercurrent to the rising gas stream.

Preliminary design calculations indicate that an operating L_s/G_s ratio should be 1.64 times the minimum L_s/G_s ratio.

With these flow rates, the overall mass-transfer capacity coefficient, K_Ga, may be taken as 8.8 kg mol/m³.s: Pa. The equilibrium relation for solutions of HCl in water at 293 K is given by the following data:

Determine:-
a. the percentage of HCl to be removed by the absorption process;

b. the exit concentration of the acid stream;

c. If 5 m³ /min of process off-gas, measured at 293 K and 1.013×10⁵ Pa pressure, are blown into the tower, determine the height of ceramic packing required in the absorber.

Reference no: EM131310495

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