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16 Nov 2019
D is Distillation and B is bottoms.
The distillation column shown in the figure below was used for the separation of 0.25 mole fraction pentane from heptane. The desired distillate and bottom products are 0.05 and 0.95, respectively. The vapor flow rates in the enriching and stripping sections of the column are 2 D and 3 B. respectively. VLE data for this binary system are given in the diagram below. What are the flow rates of distillate and bottom? What is the (L/V) enriching and plot the top operating line? Express the operating reflux ratio, R as n-R_MIN/(multiples of R_MIN) What is the boil-up ratio? Plot the bottom operating line. Is the feed sub-cooled, saturated liquid, saturated mixture, saturated vapor or superheated vapor? How many equilibrium stages are needed to accomplish the desired separation? What is the optimum location of the feed plate?
D is Distillation and B is bottoms.
The distillation column shown in the figure below was used for the separation of 0.25 mole fraction pentane from heptane. The desired distillate and bottom products are 0.05 and 0.95, respectively. The vapor flow rates in the enriching and stripping sections of the column are 2 D and 3 B. respectively. VLE data for this binary system are given in the diagram below. What are the flow rates of distillate and bottom? What is the (L/V) enriching and plot the top operating line? Express the operating reflux ratio, R as n-R_MIN/(multiples of R_MIN) What is the boil-up ratio? Plot the bottom operating line. Is the feed sub-cooled, saturated liquid, saturated mixture, saturated vapor or superheated vapor? How many equilibrium stages are needed to accomplish the desired separation? What is the optimum location of the feed plate?