Question: A binary mixture of gas A which has mole fraction of xf = 0.5 and gas B is being fed at a flow rate

$A binary mixture of gas A which has mole fraction of xf$

A binary mixture of gas A which has mole fraction of xf = 0.5 and gas B is being fed at a flow rate of q into a membrane module in order to effect seperation of the two gases. The membrane process is to be operated with a feed-side pressure of Ph = 80 cm Hg and permeate-side pressure of p = 20 cm Hg. Gas A has a permeability of P = 400 x 10-10 cm (STP) cm/(s cm cm Hg), and the separation factor between gas A and B is a = 10. If the thickness of the membrane is t = 2 x 10 cm and the fraction of the feed that is permeated is 0 = 0.25, (a) Calculate the permeate composition, Yp (b) Calculate the reject composition, xo (c) Calculate the feed flow rate, q, in cm (STP)/s if the available area of the membrane is 3 x 108 cm . . .

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