1. A manufacturer of ethyl alcohol (denoted as EtOH) is having a bit of difficulty with a distillation column. From the

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1 A Manufacturer Of Ethyl Alcohol Denoted As Etoh Is Having A Bit Of Difficulty With A Distillation Column From The 1 (36.43 KiB) Viewed 41 times

1. A manufacturer of ethyl alcohol (denoted as EtOH) is having a bit of difficulty with a distillation column. From the process as shown below in Figure 6, it appears that too much alcohol is lost in the bottoms (waste). Calculate the composition of the bottoms and the mass of the alcohol lost in the bottoms based on the data shown in Figure 5 that was collected during 1 hour of operation. Vapor Heat Exchanger Distillate (Product) P = kg 60% ΕΛΛΗ 1000 kg Feed 40% H₂O P= 1/10 feed Reflux Distillation Column F 10% ETOH 90% H₂O Bottoms (Waste) 8 = kg ETOH ? H₂O ? 2. A labeled flow chart of a continuous steady state double effect evaporator is shown below. The system of evaporator is designed to reduce water from an incoming brine (NaCl + H₂O) stream from 60 wt% to 20 wt %. If the evaporator unit is receiving 12000 lb/hr of NaCl (along with 60 wt% H₂O). Determine: a. The product rate (P₂) of brine in lb/hr. b. The water removed from the brine in each evaporator (V₁ and V₂) in lb/hr H₂O 1.00 H:0 1.00 Brine 12000 lb/hr NaCl 0.40 H₂O 0.60 I NaC1 0.55 H₂O 0.45 II P₂ NaCl 0.80 H₂O 0.20 ||