An absorber is being employed to absorb CO2from air into a dilute-caustic solution. The enteringgas containing 3 mol % C

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An absorber is being employed to absorb CO2from air into a dilute-caustic solution. The enteringgas containing 3 mol % C

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An absorber is being employed to absorb CO2from air into adilute-caustic solution. The enteringgas containing 3 mol % CO2witha flow rate of 792 lbmol/h at 60° F, 1 atm where equilibriumisgiven asy = 1.75 x(units are in mole fractions). Assume causticsolution has the properties ofwater. It is desired to recover 97%CO2in the liquid outlet stream. The solvent rate is 1.4 timestheminimum solvent rate.Determine:i) Maximum possible concentrationof CO2in the caustic solutionii) Minimum caustic solution-to-airmolar flow rate ratioiii) Caustic solution rateiv) Number ofequilibrium stages required
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