Q4 V/D 04/1 1.58 AB=1.2 An ideal mixture in the table is to be separated by distillation into four products 1.32 "/c=1.2 1.1 acD = 1.1 of fairly pure components. D 33 1. (1) Calculate the marginal vapor flows for all the non-key components in every possible column. (10 scores) (2) Find out the best sequence using the depth-first Branch-and-Bound method. (5 scores) (3) Show that the width-first Branch-and-Bound method is faster than the depth-first method by comparing the number of times of use of formula. (5 scores) (4) If component A is very corrosive, please use the heuristic method to solve the sequencing problem. (3 scores) (5) Estimate the extra cost for considering the corrosive component compared with the best sequence found in question 2. (2 scores) Activate Go to Sottil Component ABC Feed flow rate fi Kmol/hr 5 Q4 V/D 04/1 1.58 AB=1.2 An ideal mixture in the table is to be separated by distillation into four products 1.32 "/c=1.2 1.1 acD = 1.1 of fairly pure components. D 33 1. (1) Calculate the marginal vapor flows for all the non-key components in every possible column. (10 scores) (2) Find out the best sequence using the depth-first Branch-and-Bound method. (5 scores) (3) Show that the width-first Branch-and-Bound method is faster than the depth-first method by comparing the number of times of use of formula. (5 scores) (4) If component A is very corrosive, please use the heuristic method to solve the sequencing problem. (3 scores) (5) Estimate the extra cost for considering the corrosive component compared with the best sequence found in question 2. (2 scores) Activate Go to Sottil Component ABC Feed flow rate fi Kmol/hr 5