3.22b. Kremser equationss absorption of hydrogen sulide A scheme for the removal of H2S from a flow of 1.0stdm/3 of natural gas by scrubbing with water at 298K and 10atm is being considered. The initial composition of the feed gas is 2.5mol%H2S. A final gas stream containing only 0.1mol2H2S is desired. The absorbing water will enter the system free of H2S. At the given temperature and pressure, the system will follow Henry's law, according to Yl=48.3Xi, where Xi=molHH2S/mol of water; Yi=molH2S/mol of air. (a) For a countercurrent absorber, determine the flow rate of water that is required if 1.5 times the minimum flow rate is used. Answer: 54.5kg water /s (b) Determine the composition of the exiting liquid. Answer: 0.67gHH2S/L of water (c) Calculate the number of ideal stages required. Answer. 5.86 stages