Darmawan, Dewangga Haris (2025) Pra Rancangan Pabrik Magnesium Karbonat Dari Mineral Dolomit dan Gas CO2 Dengan Proses Hidrasi. Undergraduate thesis, UPN "Veteran" Jawa Timur.
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Abstract
This preliminary plant design evaluates the production of magnesium carbonate from dolomite and carbon dioxide through a hydration–carbonation mechanism at an industrial scale of 70,000 tons per year. The process begins with high-temperature calcination of dolomite at 900°C to yield reactive CaO and MgO phases. Subsequent hydration produces a Ca(OH)₂–Mg(OH)₂ slurry, which is carbonated at 60°C and 6 atm to generate magnesium bicarbonate, Mg(HCO₃)₂, and precipitated CaCO₃. Solid–liquid separation is conducted in a clarifier before thermal decomposition of Mg(HCO₃)₂ to MgCO₃ in a heating reactor. Final product conditioning involves drying, cooling, and milling to meet commercial specifications. The plant utilizes locally available dolomite resources and provides a pathway for CO₂ utilization, supporting national strategies for industrial sustainability. Techno-economic assessment demonstrates that the proposed plant is viable, with a total capital requirement of Rp 1.37 trillion, an ROI of 21% before tax, an IRR of 11%, and a payback period of 3.1 years, confirming its economic attractiveness.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TP Chemical technology T Technology > TP Chemical technology > TP155 Chemical engineering |
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| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Dewangga Haris Darmawan | ||||||||
| Date Deposited: | 08 Dec 2025 02:41 | ||||||||
| Last Modified: | 08 Dec 2025 02:41 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/18705 |
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