suppose that you are tasked with purifying a stream containing 168 kmol/h or propylene and 36...

 

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suppose that you are tasked with purifying a stream containing 168 kmol/h or propylene and 36 kmol/h of allyl chloride (the main two components in the reactor effluent from HW1-3); the pressure of the stream is 8 Bar and stream is at the bubble-point temperature. In this problem you will analyze the trade-off between purity and fractional recovery of the Allyl Chloride product using a single flash distillation. a. Use ASPEN with the PSRK (Predictive Soave-Redlich-Kwong) method to generate XY and TXY diagrams for the binary system of propylene/allyl chloride at 8 Bar. b. Determine the range of temperatures that will produce liquid and vapor product streams (at equilibrium) for a flash drum operated at 8 Bar. C. Using ASPEN, make plots of (i) fractional recovery of allyl chloride in the liquid product, (ii) mole fraction of allyl chloride in the liquid product, (iii) flash drum temperature, and (iv) flash drum heat load versus fraction vaporized. d. Compare the ASPEN results in part (c) to graphical solutions using XY or TXY diagrams from (a) for V/F = 0, 0.25, 0.5, 0.75, and 1. e. Plot fractional recovery of allyl chloride in the liquid product versus purity (mol%) of allyl chloride in the liquid product. Comment on the effectiveness of flash distillation for purifying allyl chloride. (Note the purity requirement for Allyl Chloride from HW1-3 and the difference in boiling points between propylene and allyl chloride). suppose that you are tasked with purifying a stream containing 168 kmol/h or propylene and 36 kmol/h of allyl chloride (the main two components in the reactor effluent from HW1-3); the pressure of the stream is 8 Bar and stream is at the bubble-point temperature. In this problem you will analyze the trade-off between purity and fractional recovery of the Allyl Chloride product using a single flash distillation. a. Use ASPEN with the PSRK (Predictive Soave-Redlich-Kwong) method to generate XY and TXY diagrams for the binary system of propylene/allyl chloride at 8 Bar. b. Determine the range of temperatures that will produce liquid and vapor product streams (at equilibrium) for a flash drum operated at 8 Bar. C. Using ASPEN, make plots of (i) fractional recovery of allyl chloride in the liquid product, (ii) mole fraction of allyl chloride in the liquid product, (iii) flash drum temperature, and (iv) flash drum heat load versus fraction vaporized. d. Compare the ASPEN results in part (c) to graphical solutions using XY or TXY diagrams from (a) for V/F = 0, 0.25, 0.5, 0.75, and 1. e. Plot fractional recovery of allyl chloride in the liquid product versus purity (mol%) of allyl chloride in the liquid product. Comment on the effectiveness of flash distillation for purifying allyl chloride. (Note the purity requirement for Allyl Chloride from HW1-3 and the difference in boiling points between propylene and allyl chloride).