Sari, Nungki Mela (2024) Pabrik Sodium Thiosulfate Pentahydrate dengan Proses Aerasi Kapasitas 40.000 Ton/Tahun. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Pre-Plan The Sodium Thiosulfate Pentahydrate Factory is planned to be able to produce with a capacity of 40,000 tons/year in crystalline solid form. The sodium thiosulfate pentahydrate factory is needed in Indonesia because it has many benefits. Briefly describes the process of the sodium thiosulfate pentahydrate factory, namely sodium carbonate is dissolved in a dissolution tank with the addition of process water from the utility. The solution is then fed to the aeration tank for the contacting process. In the aeration column the solution is contacted with sulfur dioxide gas in the opposite direction. The sodium bisulfate solution resulting from contact is then fed to the reactor for the neutralization process of sodium bisulfate into sodium thiosulfate with the addition of sodium carbonate and sulfur. In the reactor, the reaction occurs at a temperature of 60°C with a conversion of 95% achieved. The sodium thiosulfate solution is then concentrated in the evaporator and crystallized into sodium thiosulphate pentahydrate in the crystallizer. The crystals and mother liquor are then separated in a centrifuge. The mother liquor is discharged to waste processing, while the resulting product will have its water content removed in a rotary dryer. Next, the sodium thiosulphate pentahydrate will be cooled in a cooling conveyor before entering the ball mill to make the surface area uniform. This factory was established in an industrial area, namely in the PIER (Pasuruan Industrial Estate Rembang) industrial area, Pasuruan. This factory is a Limited Liability Company (PT) with a total of 170 employees. The Sodium Thiosulfate Pentahydrate plant works 330 days/year. Economic analysis shows that the Internal Rate of Return (IRR) is 20.37% and the Return On Investment (ROI) after tax is 26.77%. Pay Back Period (PBP) after tax is 4.4 years. The Break Even Point (BEP) value is 35.89%. Based on the analytical data above, it can be concluded that the Sodium Thiosulfate Pentahydrate plant with a capacity of 40,000 tons/year is economically and technically feasible.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TP Chemical technology > TP155 Chemical engineering | ||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Nungki Mela Sari | ||||||||
| Date Deposited: | 18 Apr 2024 06:40 | ||||||||
| Last Modified: | 18 Apr 2024 06:40 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/21760 |
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