PABRIK PROPILEN OKSIDA DARI PROPILEN DAN TERS-BUTIL HIDROPEROKSIDA KAPASITAS 240.000 TON/ TAHUN

Propylene oxide is produced by reacting propylene and tert-butyl hydroperoxide in liquid phase. The reaction is exothermic and will be running in a fixed bed single tube reactor. The reactor will be operated in anadiabatic condition at temperature of 110°C and pressure of40 atm.The products and excess reactants are separated by usingdistillation column, absorber, stripper, and bubble column. The main product is propylene oxide99.8% with side products tert-butyl alcohol98.8%. This plant will be operated at a capacity of 240,000 tons/year. Raw material used are 20,72.48 kg/hour of propylene and 43,830.45 kg/hour of tert-butyl hydroperoxide. The needs of water for utility is 347,814.70 kg/hour, electricity demand is 934.6480 kVA, and natural gas demand is 355.530,06 ft3/hour. This plant will be built in Cilegon, Banten, on the land area of 14 ha, includes planned area for expansion. The amount of labor needed is 257 staff and shift employees. From economic analysis it is obtained that the fixed capital investment is Rp44.987.946.990,27 + US$70,081,133.04 and working capital is Rp22.515.428.582,45 + US$ 257,212,474.24. Assumed that this plant is high risk, it isfound that Return on Investment before tax is 81.31% and after tax is 40.66%, Pay out Time before tax is 1.10 years, Break Even Point at 54.91%, Shut Down Point at 47.75% and the Discounted Cash Flow Rate of Return is 22.13%. Based from the evaluation it can be concluded that this propylene oxide from propylene and tert-butyl hydroperoxide plant is interesting to be studied further