You have been tasked to design a distillation sequence to separate a mixture of hydrocarbons. This column accepts a feed mixture of propane, n-pentane, and n-hexane at flow rates specified in the table below. It is desired to separate these components into three streams each with a 98% mole purity. The streams exiting the system should all be in liquid phase. The feed stream to the system is a saturated liquid at 21 bar. FEED INFORMATION: a. Outline the two possible column sequences which could be used to achieve this separation. Be sure to note if partial or total condensers are used in each column as well as the phase (liquid or gas) of each stream and its major components. [6 pts] b. Based on the relative flow rates and boiling points, which sequence do you expect to be more energy efficient and why? [6 pts] c. Using the T-xy diagram provided, calculate the relative volatility of propane to n-pentane at 20 bar and 85C.[6pts] d. If it is decided to remove n-decane in the first column to a mole purity of 98% with a 96% recovery, what would be the molar flow rates of the components that enter the second column in kmol/hr ? Due to the sharp split between n-pentane and n-decane, assume negligible propane in the exiting n-decane stream. [6 pts] You have been tasked to design a distillation sequence to separate a mixture of hydrocarbons. This column accepts a feed mixture of propane, n-pentane, and n-hexane at flow rates specified in the table below. It is desired to separate these components into three streams each with a 98% mole purity. The streams exiting the system should all be in liquid phase. The feed stream to the system is a saturated liquid at 21 bar. FEED INFORMATION: a. Outline the two possible column sequences which could be used to achieve this separation. Be sure to note if partial or total condensers are used in each column as well as the phase (liquid or gas) of each stream and its major components. [6 pts] b. Based on the relative flow rates and boiling points, which sequence do you expect to be more energy efficient and why? [6 pts] c. Using the T-xy diagram provided, calculate the relative volatility of propane to n-pentane at 20 bar and 85C.[6pts] d. If it is decided to remove n-decane in the first column to a mole purity of 98% with a 96% recovery, what would be the molar flow rates of the components that enter the second column in kmol/hr ? Due to the sharp split between n-pentane and n-decane, assume negligible propane in the exiting n-decane stream. [6 pts]