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A perfectly mixed gas permeation module is separating carbon dioxide from nitrogen using a poly ( 2 , 6 - dimethylphenylene oxide ) membrane. The

A perfectly mixed gas permeation module is separating carbon dioxide from nitrogen using a poly (2,6- dimethylphenylene oxide) membrane. The feed is 20.0mol% carbon dioxide and is at 25C. The module has 50.0m2 of membrane. The module is operated with a retentate pressure of 5.5atm and a permeate pressure of 1.01atm. We desire a permeate that is 40.0 mol% carbon dioxide. The membrane thickness is tms=1.010-4cm. Find yr,CO2=yout,CO2, widehat(FP)(in molmin), cut and (in molmin), and widehat(Fin)(in molmin).
Table 1: Permeabilities of gases in various membranes; cm3(STP)cmcm2.s.cmHg1010
Reference Code: N = Nakagawa, 1992; DR = Drioli and Romano, 2001; G= Geankoplis, 2003
\table[[Membrane,\table[[Temp.],[("C)]],He,H_(2),CO_(2),O_(2),CH_(4),N_(2),Ref],[\table[[Poly[1-],[(trimethylsilyl)],[-1-propyne]]],,,,28,000,7730,,4970,DR],[\table[[Poly],[(dimethylsiloxane)]],25,230,,3240,605,,300,N],[\table[[Poly],[(dimethylsiloxane)]],)^(35),,,4550,781,,351,DR],[\table[[Poly],[(4-methyl pentene)]],25,100,,93,32,,8.0,N],[Natural rubber,25,23.7,90.8,99.6,17.7,,6.12,N],[Natural rubber,25,,,153.0,,,9.43,DR],[Natural rubber,25,31,49,131,24,30,8.1,G],[Silicone rubber,25,300,550,2700,500,800,250,G],[Ethyl cellulose,25,53.4,,113,15,,3.0,N],[Ethyl cellulose,35,,,5.0,12.4,,3.4,DR],[Ethyl cellulose,30,35.7,49.2,47.5,11.2,7.47,3.29,G],[\table[[Poly(2.6-],[dimethylphenylene],[oxide)]],c^(25),,,75,15,,4.43,N],[Polystyrene,20,16.7,,10.0,2.01,,0.32,N],[Polystyrene,35,,,12.4,2.9,,0.52,DR],[Polystyrene,30,40.8,56.0,23.3,7.47,2.72,2.55,G],[Polycarbonate,25,19,,8.0,1.4,,0.30,N],[Butyl rubber,25,8.42,,5.2,1.30,,0.33,N],[Butyl rubber,35,,,5.18,,,0.324,DR],[Acetyl cellulose,22,13.6,,,0.43,,0.14,N],[Cellulose acetate,35,,,4.75,0.82,,0.15,DR],[Nylon 6,30,0.53,,0.16,0.038,,,N],[Nylon 66,25,1.0,,0.17,0.034,,0.008,G]]
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