CD Skripsi
Prarancangan Pabrik Metanol Dari Gliserol Dengan Disain Alat Utama Reaktor Netralisasi (R-102)
ABSTRACT
Methanol plant from glycerol is a good prospect in Indonesia. Until 2021, methanol is only supplied by one methanol producer located in East Kalimantan, namely PT. Kalimantan Timur with a production capacity of 660,000 tons/year. Therefore, the methanol plant from glycerol has a very important meaning for the acquisition of foreign exchange as well as employment. This article presents an economic evaluation of a methanol plant from glycerol with a capacity of 40,000 tons/year.. From the calculation results of the major design, the total diameter of the reactor is 4,500 mm, the total height of the reactor is 6,716.8 mm, the type of support used is Lug I-Beam, the number of supports is 4 pcs, the number of nozzles is 6 pcs with a size of 3 in, 4 in and 6 in, the stirrer used is a six disc blade turbine type with an impeller diameter of 1.5 m and an impeller height of 8.25 m. Profitability analysis calculation is done by two methods, the method that do not consider the time value of money and the method that consider the time value of money. The results of the method that do not consider the time value of money obtained ROI value (before tax) 34.62%, ROI value (after tax) 24.24%, and the value of PBP 2.98 years. Using the method that consider the time value of money, the NPW value was Rp. 1,458,405,261,831 and the DCFRR / IRR was 39.25%. The sensitivity analysis also deserve to see the effect of the factor that influence the economical viability, and provide more information for the optimization of Methanol production.
Keywords : economic evaluation, glycerol, impeller, lug, methanol, nozzle, profitability analysis, sensitivity analysis, support, turbine.
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