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Chemistry, 25.09.2019 00:10 gorbyalexis

(30%) vl-separations a liquid stream of 10 kmol/h containing 60 mol% toluene and 40 mol% benzene is partially vaporized in a single equilibrium stage flash at 1 atm. the relative volatility of the mixture is 2.3 and we can assume that it remains constant if the pressure of the system does not change. we also know that the recovery of toluene in the liquid outlet stream is 90%. (a) draw a sketch of the process and write all of the mass balances that you can, using all of the information provided. perform a degree of freedom analysis. can you calculate the compositions and flowrates of all streams using the system of equations that you formed? [! you don't need to solve system, just show all equations, dof and explain why you can or not solve it] (b) use a graphical approach (y-x diagram and q-line) to estimate the percent of the benzene that leaves in the vapor stream. show your calculations to obtain the plot clearly and then show on your plot (and in calculations) how you obtained the answer.

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(30%) vl-separations a liquid stream of 10 kmol/h containing 60 mol% toluene and 40 mol% benzene is...

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