Question: B. CO2 is separated from N2 using a GP system with 50m2 of membrane area at 25C. The membrane material being used is ethyl cellulose

B. CO2 is separated from N2 using a GP system with 50m2 of membrane area at 25C. The membrane material being used is ethyl cellulose and has an active layer thickness of 1.0104 cm. The mole fraction of the CO2 in the feed is 0.2 and in the permeate is 0.40 . The pressure on the high-pressure side of the membrane is 10 bar and on the low-pressure side is 1 bar. A table of permeabilities of different gases in different membranes is supplied at the end of the question. Stating any assumptions made, calculate: (i) the retentate mole fraction of CO2 (4 Marks) (ii) the volumetric flux of both the CO2 and the N2 (8 Marks) (iii) the value of the permeate molar flow rate (mol/min) (4 Marks)

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