1. A distillation column is to be designed to separate a mixture of 28 % by mole CS2 in CCI 4 into a top product contain
Posted: Mon May 16, 2022 2:01 pm
1. A distillation column is to be designed to separate a mixture of 28 % by mole CS2 in CCI 4 into a top product containing 96% by mole CS2 and a bottom product containing 96 % by mole CC14. Feed flow rate is 100 kmole/hr. A total condenser and a partial reboiler are used. Constant Molal Overflow is assumed. a) Find the total number of stages needed and the optimum feed stage if reflux ratio, R = 4.5 and boilup ratio B= 2 b) Find q. What is the state of the feed? c) What is constant molal overflow (CMO)? And when is it valid? d) Sometimes an existing column is used instead of building a new one. What can be done if the existing column cannot produce the desired product purities? e) Sometimes an existing column is used instead of building a new one. What can be done if the existing column diameter is not large enough?