Question: 3. A distillation column with a preheater operating at 1 atm and 45.C with at a boiling temperature feed of 600 kmol : h– with composition given in the following table is to be separated into an overhead product that recovers 99% of the maleic anhydride overhead and 98% of the benzoic-acid in the bottoms. Component 0-xylene Maleic Anhydride Benzoic Acid

EngineeringChemical EngineeringChemical Engineering questions and answers3. A distillation column with a preheater operating at 1 atm and 45.C with at a boiling temperature feed of 600 kmol : h– with composition given in the following table is to be separated into an overhead product that recovers 99% of the maleic anhydride overhead and 98% of the benzoic-acid in the bottoms. Component 0-xylene Maleic Anhydride Benzoic AcidQuestion: 3. A distillation column with a preheater operating at 1 atm and 45.C with at a boiling temperature feed of 600 kmol : h– with composition given in the following table is to be separated into an overhead product that recovers 99% of the maleic anhydride overhead and 98% of the benzoic-acid in the bottoms. Component 0-xylene Maleic Anhydride Benzoic AcidThis question hasn’t been solved yetAsk an expertAsk an expertAsk an expert done loading
Show transcribed image textExpert Answer Who are the experts?Experts are tested by assignmentguruh as specialists in their subject area. We review their content and use your feedback to keep the quality high.Transcribed image text: 3. A distillation column with a preheater operating at 1 atm and 45.C with at a boiling temperature feed of 600 kmol : h– with composition given in the following table is to be separated into an overhead product that recovers 99% of the maleic anhydride overhead and 98% of the benzoic-acid in the bottoms. Component 0-xylene Maleic Anhydride Benzoic Acid Phthalic Anhydride fi (kmol. h-1) 210 120 125 145 ααυg 10.8 5.2 1.00 0.86 a) Using the following data, determine the minimum total cost for optimum reflux ratio, if the column is to operate 7200 hour per year. b) If the vapor outlet of the distillation column is used instead of the hot utility of the preheater, calculate the % saving for the total cost. DATA: • The molar heat capacity for the liquid mixture in all proportions may be assumed to be 165 kJ/kmol K and heat capacity of water is 4.18 kJ/kg-K. • The molar heat of vaporization of mixture may be taken as 30000 kJ/kmol. • The overall heat transfer coefficient is 0.2 kJ/m2 s K in the preheater, 0.5 kJ/m2 s K in the reboiler and 0.6 kJ/mas K in the condenser. • Inlet temperature of the preheater is 45-C, the boiling temperature is 200 °C for the feed, 175 -C for distillate and 245 -C for the bottoms. • The temperature of the saturated steam used in the preheater is 220-C, and the heat of condensation is 1850 kJ/kg. • The average temperature of the water used in the condenser is 30 oC, and the change in the cooling water temperatureis 15°C for all cases. • The temperature of the saturated steam used in the reboiler is 270C and the heat of condensation is 2700 kJ/kg. • Maximum allowable vapor velocity is 0.8 m/s and R = 0.082 m-atm/kmol-K. Reflux ratio, R 1.5 1.7 1.9 Number of Actual Plates, N 20 16 14 COST DATA: • Plate column Cost = 1.2×103 D06 (TL/plate – year] (D: column diameter, m) • Condenser Cost = 31x 40.8 [TL/year] (Ac: Condenser heat transfer area, m-) • Reboiler Cost – 45x A98 (TL/year] (As: Reboiler heat transfer area, m-) • Preheater Cost = 20 40.8 (TL/year] (Ap : Preheater heat transfer area, m-) • Steam cost=0.01 TL/kg of steam • Water Cost = 0.03 TL / 1000 kg water Previous question Next question