We want to absorb 98% of component A present in a gas stream using pure water at 293.15K. The inlet gas (Mgas=29kgkmol1) contains 2% of component A and the packed tower operates counter-currently. The gradient of the equilibrium line is 2.45 , the film volumetric mass transfer coefficient for the gas phase, kya, is 0.05kmolm3s1 and the film volumetric mass transfer coefficient for the liquid phase, kxa, is 0.25kmolm3s1. If the mass flux of the gas phase, Gy, is 0.9kgm2s1 and (LM/GM)=1.2(LM/GM)min, calculate the following: (a) The actual water phase mass flux, Gx (b) The mole fraction of component A in the exit water stream (c) Kxa and H0x (d) The height of the packing Answers: (a) 1.61kg/m2s; (b) 0.00679 ; (c) 0.0823sm3molfractinnkmol;1.087m; (d) 13.09m We want to absorb 98% of component A present in a gas stream using pure water at 293.15K. The inlet gas (Mgas=29kgkmol1) contains 2% of component A and the packed tower operates counter-currently. The gradient of the equilibrium line is 2.45 , the film volumetric mass transfer coefficient for the gas phase, kya, is 0.05kmolm3s1 and the film volumetric mass transfer coefficient for the liquid phase, kxa, is 0.25kmolm3s1. If the mass flux of the gas phase, Gy, is 0.9kgm2s1 and (LM/GM)=1.2(LM/GM)min, calculate the following: (a) The actual water phase mass flux, Gx (b) The mole fraction of component A in the exit water stream (c) Kxa and H0x (d) The height of the packing Answers: (a) 1.61kg/m2s; (b) 0.00679 ; (c) 0.0823sm3molfractinnkmol;1.087m; (d) 13.09m