Question: Problem 1: (40 marks) H2S is to be stripped from a liquid monoethanolamine (MEA) solution using a stream of hot air. The feed solution (containing

Problem 1: (40 marks) H2S is to be stripped from a

Problem 1: (40 marks) H2S is to be stripped from a liquid monoethanolamine (MEA) solution using a stream of hot air. The feed solution (containing 5.9 mol% H2S with a flow rate of 25 Ibmol/hr) is to be treated consequently in a cross-current cascades such that for every stage, there are 22 lbmol/hr stream of fresh (pure) air. If the equilibrium relationship is given by yh2s = 0.05 Xh2s, find the number of stages required to reduce the solution composition to 5%. You need to show both numerical method and graphical method

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