Pra Rancangan Pabrik Bioetanol dari Nira Kelapasawit dengan Proses Fermentasi Menggunakan Saccharomyces Cerevisiae Kapasitas Produksi 55.000 Kiloliter/Tahun dan Tugas Khusus Rancangan Keteknikan Distilasi

Abstract

Preliminary Plant Design of Bioethanol from palm sap through Fermentation Method with Saccharomyces Cerevisiae Capacity 55,000 kiloliters/year which operates for 330 days a year. The main stage in the pre-plant design consists of 3 stages, namely the preparatory stage which consists of screening and mixing processes, fermentation, and the purification stage which consists of distillation and adsorption dehydration processes. The amount of palm sap needed to reach production capacity is 72283.885 kg/hour. The specific task that was completed was the detailed engineering design of the distillation tower. The distillation tower specifications designed are stainless steel material SA-240 type 316, shell diameter 1.373 m, total height 18.686 m, design pressure 34.530 psi, shell thickness 0.375 in, number of trays, 36 trays, gasket width of 0.112 in, minimum bolt area 5,502 in, 58,572 in flange diameter, and 2.5 in flange thickness. The location for setting up a bioethanol manufacturing plant from palm sap is planned to be built in Koto Gasip District, Siak Regency, Riau Province, with a total factory area of 17,460.300 m2 . The water needed by the factory is supplied from the Siak River as much as 3,900.592 kg/hour. The planned business entity is a Limited Liability Company (PT) with a line and staff organizational form with a workforce of 200 people needed. The results of the economic analysis in the pre-design of the bioethanol plant are: Total Investment Capital Rp. 353,239,596,867.93, production costs Rp. 701,313,499,792.53, sales proceeds of Rp. 812,845,000,000.00, Profit Margin 13.04%, Break Even Point 49.59%, Pay Out Time 4 Years 9 Months, Return On Network 35.02%, and Internal Rate Of Return 21.50%. Based on the results of the economic analysis, it can be concluded that a bioethanol processing plant using palm sap as raw material with a fermentation process is feasible to establish