Elementary Principles 211 - 6.64 Basis: 100 mol/s gas feed....

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6- 45 6.64 Basis: 100 mol/s gas feed. H=hexane. a. () ( ) 2 4 11 4 95.025 mol s N balance: 0.95 100 1 99.5% absorption: 0.05 100 0.005 2.63 10 mol H(v) mol Mole Balance: 100 200 95.025 205 mol s Hexane Balance: 0.05 100 2.63 10 95.02 GN NG N N N LL n yn y nn = =− = += + = ± ± ± ±± 5 204.99 0.0243 mol H(l) mol 200 205 202.48 mol s , 100 95.025 97.52 mol s 22 G G xx n n +⇒ = =+ = = ± ± b. yx p P H 50 0 0243 40373 760 0 0129 = ° == B Antoine C mol H(v) mol bg /. . / . H balance on 1 Stage: mol H(l) mol st xn x vlvl 0211 2 0 00643 ±±±± . +=+⇒ = c. The given formulas follow from Raoult’s law and a hexane balance on Stage i . d. Hexane Absorption P= 760 PR= 1 y0= 0.05 x1= 0.0243 yN= 2.63E-04 nGN= 95.025 nL1= 204.98 nG= 97.52 nL= 202.48 A= 6.88555 B= 1175.817 C= 224.867 T p*(T) T p*(T) T p*(T) 30 187.1 50 405.3059 70 790.5546 i x(i) y(i) i x(i) y(i) i x(i) y(i)
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