A mixture of 60 mol% propylene and 40 mol% propane at a flow rate of 100 lbmol/h
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A mixture of 60 mol% propylene and 40 mol% propane at a flow rate of 100 lbmol/h and at 25?C and 300 psia is to be separated with a polyvinyltrimethylsilane polymer (see Table 14.9 for permeabilities). The membrane skin is 0.1 pm thick, and spiralwound modules are used with a pressure of 15 psia on the permeate side. Calculate the material balance and membrane area in m2 as a function of the cut (fraction of feed permeated) for:
(a) Perfect-mixing flow pattern.
(b) Crossflowpattern.
Transcribed Image Text:
Sx 10*. gmol/m-Pa Dx 1011. m?/s PM. Permeant barrer Polyvinyitrimethylsilane (Glassy Polymer) Не 470 0.18 250 0.26 Ne 87 66 Ar 5.1 1.95 30 Kr 1.5 6.22 29 Xe 0.29 20.6 18 Rn 0.07 69.6 15 На 160 0.54 250 O2 7.6 1.58 37 3.8 0.84 9. CO: 4.0 13.6 160 CO 3.7 1.28 14 CH4 1.9 3.93 22 CH6 С-На 0.12 30.2 10 0.01 98.1 2.8 CH10 0.001 347 1.2 CH4 0.23 17.8 12 C,H6 C4Hạ (1) С-На C3H4 (m) 0.038 77.6 9. 0.0052 293 4.5 0.58 16.8 32 0.17 138.1 70 C4H6 (e) C3H4 (a) C4H, (b) 0.053 318.5 50 0.15 186.5 83 0.03 226.1 20
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