Improving Operational Energy Efficiency in the Acetaldehyde Production Process Through the Addition of a Heat Exchanger and Optimization of Heat from Reactors' Outlet

Balqist Nazlia; Fitri Muthiah Fahira; Helena Novita Hapsari; Pricellia Alexandra Natasya Putri; Kanya Gading Adyawita

doi:10.9767/jcerp.20561

DOI: https://doi.org/10.9767/jcerp.20561

Improving Operational Energy Efficiency in the Acetaldehyde Production Process Through the Addition of a Heat Exchanger and Optimization of Heat from Reactors' Outlet

Balqist Nazlia, Fitri Muthiah Fahira, Helena Novita Hapsari, Pricellia Alexandra Natasya Putri, Kanya Gading Adyawita

Department of Chemical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia

Received: 10 Dec 2025; Revised: 22 Dec 2025; Accepted: 24 Dec 2025; Available online: 9 Jan 2026; Published: 30 Jun 2026.

Editor(s): Istadi Istadi

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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BibTex Citation Data :

@article{JCERP20561,
    author = {Balqist Nazlia and Fitri Muthiah Fahira and Helena Novita Hapsari and Pricellia Alexandra Natasya Putri and Kanya Gading Adyawita},
    title = {Improving Operational Energy Efficiency in the Acetaldehyde Production Process Through the Addition of a Heat Exchanger and Optimization of Heat from Reactors' Outlet},
    journal = {Journal of Chemical Engineering Research Progress},
  volume = {3},
    number = {1},
    year = {2026},
    keywords = {Energy efficiency; Acetaldehyde; Heat exchanger; Ethanol dehydrogenation; process design},
    abstract = { Enhancing the energy efficiency of acetaldehyde production is essential for advancing operational performance and supporting sustainable chemical manufacturing. This study investigates the effect of integrating an additional heat exchanger into the ethanol dehydrogenation flowsheet, positioned before the feed stream enters the process unit, on overall thermal efficiency. Thermodynamic simulations were conducted to compare the baseline configuration with the modified design. The added heat exchanger recovers energy from existing process streams, thereby reducing dependence on external heating utilities and minimizing unnecessary heat losses. Simulation results reveal a significant reduction in total energy demand, with overall heat consumption lowered by 507,602.4 kJ/h relative to the original system. These findings highlight the potential of strategic heat integration to markedly enhance the energy performance of acetaldehyde production. In conclusion, incorporating a heat exchanger prior to downstream heating units offers a practical and effective means of optimizing energy use while promoting more efficient and environmentally responsible process designs. Copyright © 2026 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). },
   issn = {3032-7059},   pages = {124--129}  doi = {10.9767/jcerp.20561},
    url = {https://journal.bcrec.id/index.php/jcerp/article/view/20561}
}

Citation Format:

Abstract

Enhancing the energy efficiency of acetaldehyde production is essential for advancing operational performance and supporting sustainable chemical manufacturing. This study investigates the effect of integrating an additional heat exchanger into the ethanol dehydrogenation flowsheet, positioned before the feed stream enters the process unit, on overall thermal efficiency. Thermodynamic simulations were conducted to compare the baseline configuration with the modified design. The added heat exchanger recovers energy from existing process streams, thereby reducing dependence on external heating utilities and minimizing unnecessary heat losses. Simulation results reveal a significant reduction in total energy demand, with overall heat consumption lowered by 507,602.4 kJ/h relative to the original system. These findings highlight the potential of strategic heat integration to markedly enhance the energy performance of acetaldehyde production. In conclusion, incorporating a heat exchanger prior to downstream heating units offers a practical and effective means of optimizing energy use while promoting more efficient and environmentally responsible process designs. Copyright © 2026 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).

Keywords: Energy efficiency; Acetaldehyde; Heat exchanger; Ethanol dehydrogenation; process design

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Section: Original Research Articles

Language : EN

In 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)

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