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please solve it. Ethane (C2H6) is chlorinated in a continuous reactor: C2H6 + Cl2 CH3Cl + HCI Some of the product monochloroethane (C2H5Cl) is further

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Ethane (C2H6) is chlorinated in a continuous reactor: C2H6 + Cl2 CH3Cl + HCI Some of the product monochloroethane (C2H5Cl) is further chlorinated in an undesired side reaction to produce dichloroethane (C2H4Cl2): CH3Cl + Cl2 C2H4Cl2 + HCl (a) Take a basis of 100 mol C2H5Cl produced. Assume that the feed contains only ethane and chlorine and that all of the chlorine is consumed. Draw and label the flow chart and carry out a degree-of-freedom analysis based on atomic species balances. (5 + 5 = 10 Marks) (b) The reactor is designed to yield a 15% conversion of ethane and a selectivity of 14 mol C2H5Cl/mol C2H4Cl2, with a negligible amount of chlorine in the product gas. Calculate (i) all the unknown of part (a) (ii) the feed ratio (mol Cl2/mol C2H6) and (iii) the fractional yield of monochloroethane. (5 * 2 + 3 +2 = 15 Marks) (C) Suppose your principal objective is to maximize the selectivity of monochloroethane production relative to dichloroethane production. Would you design the reactor for a high or low conversion of ethane? Explain your answer. (Hint: If the reactor contents remained in the reactor long enough for most of the ethane in the feed to be consumed, what would the main product constituent probably be?) What additional processing steps would almost certainly be carried out to make the process economically sound? (3 +2 = 5 Marks)

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