Optimizing Energy Efficiency in Acetone Production via Isopropyl Alcohol Dehydrogenation through Feed-Effluent Heat Integration

Regina Aditasya (Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang)
Melisa Taslim (Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang)
Sri Fatimah Azzahra (Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang)
Bagas Bumi Narendro (Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang)
Indira Avila Prantindoe (Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang)
Kevin Setiadi Seng (Master Program in Chemical Engineering, Faculty of Engineering, Universitas Diponegoro)
Benaya Matius Marpaung (Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang)

Journal of Chemical Engineering Research Progress
2025: JCERP, Volume 2 Issue 2 Year 2025 (December)

Acetone production via isopropyl alcohol (IPA) dehydrogenation is an energy‑intensive process due to the endothermic nature of the reaction. This study aims to minimize net energy consumption by simulating a modified process design that incorporates a Feed‑Effluent Heat Exchanger (FEHE) strategy. The simulation results demonstrate that the modified configuration successfully recovers heat from the reactor effluent to preheat the feed stream to 178 °C, thereby reducing the total energy consumption from 4,695.8 kW to 4,532.0 kW. This energy saving of 163.8 kW confirms that the proposed heat integration is technically feasible and significantly enhances the thermodynamic efficiency of the acetone production process. Copyright © 2025 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).