Test 2 Mass transfer (open all 75 mins) (kelas pagi 52 mhs). Nama ......... A reactor in methanol plant produces a mixture with flow rate 1000 kgmol/hr and contain 75 mol % methanol and 25 mol % water. In order to fulfill the market demand, continues rectification is used to purify the mixture with overhead product is to contain 99.99 mol % methanol. The bottom product contain 0,002 mol % methanol. For this purpose, a rectification column is designed to operate at 1 atm with reflux ratio 1.4 and the reflux is at its bubble point. Feed is introduced to the column as a liquid phae in its bubble point. Calculate 1. Flow rate of the overhead and the bottom product 2. The number of ideal plate (using Mc.Cabe & Tiele method) 3. The number of actual plate if an average Murphee plate efficiency is 80% 4. Flow rate of cooling water needed if the cooling water enter the condenser at 30C and leave the condenser at 60C.