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A liquid mixture containing 30.0 mole% benzene (B),25.0% toluene (T), and the balance xylene (X) is fed to a distillation column. The bottoms product contains
A liquid mixture containing 30.0 mole\% benzene (B),25.0% toluene (T), and the balance xylene (X) is fed to a distillation column. The bottoms product contains 98.0 mole\% X and no B, and 94.5% of the X in the feed is recovered in this stream. The overhead product is fed to a second column. The overhead product from the second column contains 95.5% of the B in the feed to this column. The composition of this stream is 94.0 mole\% B and the balance T. Still 1 Write three balances and use one constraint for the performance of Still 1 to solve for the following quantities for a process feed (n1) of 300.0mol/h. First Still Bottoms flow rate (n2)=mol/h Overhead fow rate (n3)= Benzene mole fraction in overhead (x3B)= Toluene mole fraction in overhead (x3T)= Write three balances and use one constraint for the performance of Still 2 to solve for the following quantities for a process feed (n1) of 300.0mol/h. Second Still Overhead from second still (n5)=mol/h Bottoms from second still (n4)=mol/h Benzene mole fraction in bottoms from second still (x4B)= Toluene mole fraction in bottoms from second still (x4T)= Attempts: unlimited Calculate the percentage of B in the process feed that is recovered in the overhead of the second distialltion column. % Calculate the percentatge of T in the process feed that is recovered in the bottoms of the second distillation column. %
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