Noviyana, Nadilla Jelsi (2025) Pra Rancangan Pabrik Kalium Hidroksida dari Kalium Klorida dengan Proses Elektrolisis. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Potassium hydroxide is widely used in various industrial sectors, such as soap manufacturing, batteries, fertilizers, and textiles. In addition, potassium hydroxide also functions as a pH regulator, stabilizer, and thickener in the food industry. The establishment of a potassium hydroxide plant in Indonesia is necessary to meet domestic demand, reduce dependence on imports, and stimulate economic growth in the country. The plant is planned to begin operation in 2029 with a production capacity of 50,000 tons per year, located in the JIIPE (Java Integrated Industrial and Port Estate) industrial area, Manyar District, Gresik Regency. The plant will operate for 330 days per year with a total workforce of 195 employees. The manufacturing process of potassium hydroxide begins by dissolving potassium chloride (KCl) with a purity of 96.5% using water from the utility unit to produce a KCl solution with a concentration of 30%. This solution is then fed into a jacketed electrolysis reactor operating isothermally at 90 °C and 1 atm. In the reactor, KCl dissociates into K⁺ and Cl⁻ ions; the K⁺ ions react with OH⁻ ions produced from water electrolysis to form KOH, while chlorine gas (Cl₂) and hydrogen gas (H₂) are generated as by-products. The KOH solution from the electrolysis reactor is then evaporated using an evaporator until it reaches a purity of 64%, followed by crystallization in a crystallizer at 30 °C and 1 atm. The crystallized product is separated using a centrifuge, then dried in a rotary dryer at 100 °C, and cooled using a cooling screw conveyor to a temperature of 30 °C. The final product, solid KOH with a purity of 98%, is then stored in the product warehouse.
| 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: | Nadilla Jelsi Noviyana | ||||||||
| Date Deposited: | 05 Dec 2025 08:48 | ||||||||
| Last Modified: | 05 Dec 2025 08:48 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/47723 |
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