| dc.description.abstract | Preliminary design of bioethanol plant from starch with capacity 50,000 ton/year is planned to be built in Middle Lampung. This chemical plant will be operated for 330 day/year or 24 hours a day with 149 employees.
Raw material needed is starch 13.096,82 kg/hour. The production process will be operated at temperature 90˚C for hydrolysis and 35oC for fermentation, at pressure about of 1 atm using Continuous Stirred Tank Reactor. The utiliy consist of 94.287,3 kg/hour of cooling water, 1200 kg/hour of housing water, 28.753,2 kg/hour of steam, 316,4 m³/hour of fuel while the power of electricity of about 290 kVA provided by PLN. This chemical plant also use generator set as reserve.
An economic analysis shows thats this chemical plant need to be covered by fixed capital of about Rp. 112.893.009.556, working capital of about Rp 114.082.917.202. The profit before tax is Rp.27.643.117.053 while the profit after tax is Rp. 13.821.558.526. Percentage of return on investemen (ROI) before tax is 24,49% while after tax is 12,24%. Pay out time (POT) before tax is 2,90 years while after tax is 4,50 years. The value of break evek point (BEP) for about 57,42 % and shut down point (SDP) of about 36,57 %. Based on the economic analysis, It is concluded that plant design of bioethanol with capacity 50,000 ton/years feasible to be built. | en_US |
