High Equivalent of Theoritical Plate from Reactive Distillation Unit by Purification of Ethanol on Different Concentration

摘要

Distillation used in large number of industry in the world as purification unit. Distillation unit has two kind of separation column, plate and packing. Distillation unit in this research use packing as separation coloumn and type of packing is glass raschig ring. Dimension of distillation unit are; 1.20 m on height, 45 mm on diameter, 2 mm on wall thikness. dimensions of one glass raschig rings are; 0.5 mm of out diameter, 8.5 mm on lenght, 0.85 mm on wall thickness and 19.5 cm on high of packing. High Equivalent of Theoritical Plate (HETP) is a methode to calculate how many plate that equivalent to the high of packing. Both fenske underwood and mc-cabe thiele methode was used to calculate the HETP. Data from ethanol purification with different input concentration collected to calculate the HETP. Different concentration of ethanol; 50%, 55%, 60%, 65% and 70% used as input in distillation process. Sample of distillat and bottom took in 76 0C and 82 0C. Concentration of distillat and bottom checked by refraktometer. The best HETP from fenske methode is 17.69 and Number of minimum plate (Nmin) are; 1,10. It’s means that 17.69 cm is equal to one plate.