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Editorial Office of Journal of Chemical Engineering Research Progress BCREC Publishing Group and PT Laboratorium Terpadu, Universitas Diponegoro Laboratory of Plasma-Catalysis (R3.5), UPT Laboratorium Terpadu, Universitas Diponegoro Jl. Prof. Soedarto, Semarang, Central Java, Indonesia 50275
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Journal of Chemical Engineering Research Progress
Published by Universitas Diponegoro
ISSN : -     EISSN : 30327059     DOI : https://doi.org/10.9767/jcerp
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology
The Journal of Chemical Engineering Research Progress (e-ISSN: 3032-7059; Short Abbreviation Title: J. Chem. Eng. Res. Prog.) is an international research journal and invites contributions of original and novel fundamental research. The JCERP journal aims to provide an international forum for the presentation of original fundamental research, interpretative reviews and discussion of new developments in chemical engineering discipline. Papers which describe novel theory and its application to practice are welcome, as are those which illustrate the transfer of techniques from other disciplines, including: fundamentals of chemical engineering; advanced materials related to chemical engineering; applied/industrial chemistry; chemical reaction engineering kinetics; chemical reactor design and optimization; chemical engineering process design and computation; etc. related to chemical engineering discipline.
Arjuna Subject : Teknik Kimia (semua kategori) - Kimia Proses dan Teknologi
Articles 91 Documents
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Process Optimization of Chlorobenzene Production through the Integration of a Distillation Unit and Mixer in Gas–Liquid Benzene Chlorination Sidhik, Edward; Raisa, Kianaya; Akbar, Naufal Ismail; Apriturlina, Nurul; Hisanah, Tibra Sausan; Sirait, Yeremia Cris Natanael
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20587

Abstract

Chlorobenzene is a key intermediate in the synthesis of phenol, aniline, and dichlorodiphenyltrichloroethane (DDT), and is also utilized as a solvent, heat-transfer fluid, and occasionally in dry-cleaning. Given its wide industrial applications, production efficiency is essential for economic viability. This study explores yield enhancement in chlorobenzene manufacture through modifications to the benzene chlorination process. The intensification strategy involved the addition of a distillation column and a mixer unit, while sensitivity analyses were performed using chemical engineering simulation software to assess the influence of operating parameters. The modified process increased chlorobenzene yield from 83% to 98%. Sensitivity analysis revealed that higher benzene feed pressure negatively impacted liquid-phase product yield, whereas a greater benzene-to-chlorine mass flow ratio improved yield by enhancing selectivity toward chlorobenzene formation. These findings demonstrate that process modifications combined with optimized operating conditions can significantly improve chlorobenzene production efficiency. 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).
Integrated Process Design for n-Octane Production Enhancing Yield and Energy Saving via Recycle, Heat Integration, and Purge-gas Utilization Purasetya, Muhammad Bialfan; Yustifasari, Achika Risky; Sagita, Agnes Advencia; Ardinta, Amara Wahyu; Sinaga, Nanda Angelica Basaria
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20588

Abstract

n-octane is an essential hydrocarbon in fuels and petrochemicals, yet conventional production suffers from high energy demand and material losses. This study develops an integrated process design combining recycle systems, heat integration, and purge-gas utilization for n-octane production. Results show that recycle integration raises yield from 92.81% to 97.46%, heat integration achieves 36.38% energy savings, and purge-gas valorization sustains high yield (97.41%) while delivering the greatest energy reduction (62.30%). The findings demonstrate that synergistic process intensification enhances efficiency and sustainability, offering a transferable framework for hydrocarbon production optimization. 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).
Integrated Optimization of Cyclohexane Production via Benzene Hydrogenation Incorporating Advanced Separation, Extended Distillation, and Heat Exchanger Integration to Enhance Product Purity and Energy Efficiency Artha, Muhammad Trisna Mi'raji; Rofiq, Wildan Aunur; Aqilah, Muhammad Ihsan; Umar, Ru'ullah Khalif; Ardelia, Nayyara Alifah
Journal of Chemical Engineering Research Progress 2025: JCERP, Volume 2 Issue 2 Year 2025 (December)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20581

Abstract

Cyclohexane is an essential intermediate in the production of nylon-based polymers, yet its industrial synthesis via benzene hydrogenation and subsequent purification remains challenged by thermodynamic limitations and the narrow boiling-point gap between benzene and cyclohexane. This study presents an integrated process optimization strategy aimed at enhancing product purity and net energy efficiency without altering the existing operating conditions. Process simulations were performed to evaluate a modified flowsheet incorporating an additional separator, a second distillation column, and heat-exchanger integration for internal heat recovery. The results show that the modified configuration significantly improves separation performance, raising cyclohexane purity from 57.98% in the basic design to 93.40%. Energy integration through strategic heat-exchanger placement also reduced net energy demand from 910,655,219 kJ/h to 37,151,954 kJ/h, demonstrating substantial thermal-efficiency gains. These findings confirm that equipment-level modifications particularly enhanced separation structures and internal heat-recovery mechanisms can effectively intensify cyclohexane production processes, leading to higher product quality and improved energy sustainability. 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).
Optimizing Operating Conditions to Increase the Effective Hydrogen Partial Pressure and Reduce Fresh Hydrogen in Vapor-Phase Cyclohexanol Production Yusriyyah, Aisyah Hanunaida; Wibisono, Rivan Pradipta; Tiarawati, Yulianazhwa
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20598

Abstract

Cyclohexanol is a vital intermediate in nylon precursor production, making its efficient synthesis highly relevant for large-scale chemical industries. Conventional processes often face inefficiencies such as excessive hydrogen consumption and poor energy utilization, which hinder economic viability. This study aims to optimize cyclohexanol production by improving hydrogen recovery and heat integration. Thermodynamic analysis confirmed the reaction is highly exothermic and favorable across the operating temperature range, emphasizing the need for strict thermal control. Process simulation was then employed to evaluate the baseline flowsheet and identify inefficiencies. A revised configuration was developed incorporating effluent cooling, vapor–liquid separation, and hydrogen recycling. The improved system significantly enhanced hydrogen efficiency, reactor performance, and energy utilization, leading to higher conversion rates and more stable operation. In conclusion, the optimized process demonstrates the importance of integrating reaction engineering with process-level design. The simulation framework also provides a foundation for future studies on intensified reactor–separator systems and advanced energy-saving strategies. 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).
Process Optimization of Cumene Production: Energy Efficiency Optimization and Conversion Enhancement through Heat Integration and Recycle Strategies Alghiffary, Farrel Dzakwan; Gempa, Alfandi Maulana; Nugroho, Nabiel Athallah Ayyubi; Syahid, Juan R.; Rajendra, Otniel Galih
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20576

Abstract

Cumene production via benzene–propylene alkylation is a highly exothermic process that requires effective thermal management. This study aims to optimize energy efficiency and enhance conversion performance in cumene production through the integration of reactor heat recovery and recycle strategies. To improve heat utilization efficiency, the process was modified by integrating a circulating heat transfer fluid system that captures reactor heat and reuses it for feed preheating, thereby reducing external utility demand. Additional heat released during effluent cooling is recovered to supply the mechanical energy required for pumping. The modified and baseline configurations were modeled using chemical process simulator and evaluated using a net energy (NE) framework. Results show that the basic process yields an NE of 3,119,682.58 kJ/h, while the modified process achieves 2,055,114.79 kJ/h, with 21,294,605.8 kJ/h of internal energy successfully recovered and reused. This demonstrates a substantial improvement in thermal integration and reduced reliance on external heating. Furthermore, the introduction of a vapor phase benzene recycle stream enhances benzene conversion, suppresses secondary alkylation, and increases cumene yield. Overall, the integrated heat recovery and recycle strategy significantly improves energy efficiency, conversion performance, and sustainability in cumene production. 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).
Heat Integration Strategies for Acetaldehyde Production: Optimizing Ethanol Dehydrogenation and Hydrogen Recovery Yusuf, Faruq Naufal; Biantoro, Muhammad Abiyyu; Mujahid, Muhammad Faishal; Rahim, Hafidz Azwar; Prawira, Elleonora Pramusita
Journal of Chemical Engineering Research Progress 2025: JCERP, Volume 2 Issue 2 Year 2025 (December)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20585

Abstract

Acetaldehyde production via ethanol dehydrogenation is inherently energy-intensive due to its endothermic characteristics, while the hydrogen generated as a co-product must achieve high purity to meet industrial specifications. Enhancing energy efficiency and hydrogen quality is therefore essential to advancing the sustainability and economic feasibility of this process. This study investigates strategies to optimize energy consumption and hydrogen purity in acetaldehyde production through systematic heat integration and absorber operating condition optimization. Process simulations were employed to quantify the influence of internal heat exchanger integration on overall heat demand and to examine the effect of absorbent flow rate variation on hydrogen purification performance. Integration of heat exchangers reduced total energy consumption by "10,148,446.64" kJ/h, corresponding to a 23% improvement in energy efficiency. Moreover, increasing the absorber water flow rate elevated hydrogen purity from 94.6% to 99.5%. The combined optimization decreased specific energy consumption to 34,316,959.07 kJ/h and lowered monthly operating costs by 22.8%. These findings demonstrate that coupling heat integration with absorber flow rate optimization constitutes an effective approach to improving energy efficiency, hydrogen quality, and economic viability in acetaldehyde production via ethanol dehydrogenation. 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).
Enhancing Energy Efficiency in Methanol-Based Formaldehyde Production through Heat Recovery Integration Malau, Jon Saul; Hasby, Akhdan Mizbani; Adelia, Ammara Naifah; Khairunnisa, Atikah; Novya, Ayesha Imtiyaz; Amaanullah, Dzaki
Journal of Chemical Engineering Research Progress 2025: JCERP, Volume 2 Issue 2 Year 2025 (December)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20564

Abstract

Formaldehyde is a key industrial chemical known for its high reactivity and broad applicability across sectors such as plastics, resins, textiles, and agrochemicals. Its production has evolved from early silver-catalyzed oxidation of methanol to the more efficient Formox process using iron molybdate catalysts. Despite these advancements, conventional production methods remain energy-intensive, prompting the need for sustainable alternatives. This study investigates the impact of process modification through internal heat recovery on the energy efficiency of methanol-based formaldehyde synthesis. By comparing conventional and modified process configurations, the results demonstrate that reusing reactor-generated heat to power auxiliary units significantly reduces external energy demand. The modified system achieved a 30.64% improvement in energy efficiency, underscoring the potential of heat integration strategies to enhance sustainability and reduce operational costs in formaldehyde manufacturing. 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).
Optimizing of Temperature and Pressure in a Modified Plug Flow Reactor to Enhance Benzene Conversion with Process Simulation Software Hutabarat, Ardi Wiranata; Sitio, Arnanda R.H.; Zahkia, Ar Rahma Intan; Damanik, Azhari Eliana; Huda, Muhammad Danil; Pulungan, Padilah Ulpah
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20563

Abstract

The increase in industrial dependence on benzene demands a more efficient, high-conversion hydrodealkylation (HDA) process. The HDA of toluene is highly sensitive to temperature and pressure, and inaccuracies in operating conditions can cause side reactions and accelerate catalyst deactivation. This study determined optimal temperature–pressure conditions in a plug flow reactor through steady-state Aspen HYSYS simulation using the Peng–Robinson model and parameter interaction analysis in Design Expert. The results showed a synergistic effect, with temperature as the dominant factor and pressure enhancing conversion. Optimal conditions of 710.8 °C and 67.6 atm produced 90.39% conversion, while the lowest conditions resulted in < 5%. These findings confirm that precise control of operating parameters improves reactor performance and hydrogen utilization, supporting a more stable and energy-efficient HDA process. 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).
Improved Conversion Performance in Methyl Chloride Production from Methanol and Hydrogen Chloride Through Heat Exchanger Based Waste Heat Recovery and Process Modification Putri, Fadhillah Ghania; Misyka, Nurfi; Dewi, Viviana Kumala; Kansha, Farsya Mutiara; Khairani, Aisya Salsabila
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20589

Abstract

Methyl chloride (CH₃Cl) is an essential intermediate in the manufacture of silicones, agrochemicals, amines, refrigerants, and synthetic rubber; however, conventional production routes are constrained by substantial energy inefficiencies and exergy destruction. This study seeks to enhance the hydrochlorination of methanol to methyl chloride by integrating heat exchangers (HE) as a waste‑heat recovery strategy. Simulation software was used to simulate both the baseline and heat‑integrated process configurations, employing the Peng–Robinson EOS to represent thermodynamic behavior. In the baseline system, the process required 12,302.48 kW of energy input and produced 9,028.60 kW of useful output, achieving a conversion of 73.4%, with unrecovered hot streams contributing significantly to entropy generation. The modified configuration introduced three heat exchangers (E‑100, E‑101, E‑102) to recover reaction and condensation heat, enabling feed preheating and reducing external utility demand. This integration increased conversion from 73.4% to 95%, raised energy output to 11,912 kW, and reduced both energy losses and exergy destruction. The resulting dataset from the optimized system was subsequently evaluated using machine learning models, among which Bayesian Ridge Regression (BRR) demonstrated the highest accuracy and stability, exhibiting superior MSE, MAE, and R² performance. Overall, the findings show that coupling heat‑integration strategies with machine‑learning analysis provides a robust pathway for improving energy efficiency, product quality, and predictive reliability in methyl chloride production. 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).
Enhancing Nitric Acid Production Efficiency Using Tail Gas Recycle Ruslan, Daffa Rahmatullah; Lerrick, Hillary Nadine; Theni, Krisnelly; Silviana, Monika; Simangunsong, Samuel Octavianus Hasiholan
Journal of Chemical Engineering Research Progress 2025: JCERP, Volume 2 Issue 2 Year 2025 (December)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20583

Abstract

This study simulates and compares the conventional Ostwald process, and a modified full tail-gas recycle configuration to evaluate the enhancement in nitric acid production efficiency. Using simulation software with the Peng–Robinson model, the conventional Ostwald process and a modified recycle configuration were simulated and compared. In the standard process, unabsorbed NO₂ leaves with the tail gas, limiting nitric acid formation. Recycling this tail gas back to the absorber increases NOx contact time and promotes further conversion. Process efficiency, evaluated through production intensity (PI), improved from 0.4702 to 1.0320 kg HNO₃ per kg NH₃, a 119% increase. These results show that tail-gas recycling is an effective and straightforward method to boost nitric acid yield and reduce emissions without significant changes to the existing flowsheet. 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).

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