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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 102 Documents
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Optimizing Energy Efficiency in Acetone Production via Isopropyl Alcohol Dehydrogenation through Feed-Effluent Heat Integration Aditasya, Regina; Taslim, Melisa; Azzahra, Sri Fatimah; Narendro, Bagas Bumi; Prantindoe, Indira Avila; Seng, Kevin Setiadi; Marpaung, Benaya Matius
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.20591

Abstract

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).
Development and Optimization of a Laboratory-Scale Bubble Column Bioreactor for Bioethanol Fermentation: A Computational Approach David, Abutu; Wan Yussof, Hafizuddin; Aderemi, Benjamin Olufemi; Ameh, Alewo Opuada; Agi, Augustine Aja
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 1 Year 2026 (June)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20646

Abstract

This study presents the design and optimization of a laboratory-scale bubble column bioreactor (BCB) for bioethanol fermentation. Python-based simulations in Google Colab were employed to analyze mass transfer dynamics, hydrodynamic behavior, and reactor scale-up strategies under varying aeration rates. Although ethanol production is an anaerobic process, oxygen transfer analysis was conducted to characterize reactor performance and establish oxygen-limited conditions suitable for Saccharomyces cerevisiae fermentation, incorporating mass transfer modeling, reaction kinetics, process control, and sparger design to enhance fermentation efficiency. To further enhance fermentation efficiency, Response Surface Methodology (RSM) was applied following a two-stage optimization approach. A working volume of 500 mL was defined using fermentation kinetics, including an oxygen uptake rate of 1.1 g O₂/g cells, biomass yield of 0.5 g/g glucose, and kLa of 50 h⁻¹. A perforated plate sparger with six 1.2 mm orifices achieved a gas velocity of 90.3 m/s and 2.68 mm bubble size. Aeration was dynamically controlled to maintain 0.002 g/L dissolved oxygen, while pH was regulated at 5.0–5.5 using NaOH dosing. These conditions yielded 44.3% ethanol. A full factorial design identified Time, Air Flow Rate, Cell Loading, and Bead Mass as significant factors. RSM with Central Composite Design confirmed a significant quadratic model (F = 14.14, p < 0.0001; R² = 0.9601, Adjusted R² = 0.9201). Cell Loading (F = 48.48) and Bead Mass (F = 26.53) had the strongest effects. Optimal conditions yielded 47.9% ethanol at 52.70 h, 1.55 L/min air, 1.51 g/L cells, and 47.20 g beads, with 0.84% prediction error. 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).
Production and Characterization of Polyurethane-Based Artificial Leather Using Release Paper Technology Shukla, Siddhi; Kaushal, Rajesh Kumar; Vishwakarma, Vikas
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 2 Year 2026 (December) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20707

Abstract

Natural leather production involves animal use and chemical-intensive tanning processes, creating environmental and ethical concerns. Therefore, developing sustainable alternatives is important for modern footwear, garment, furniture, and automotive industries. This study aimed to prepare polyurethane (PU)-based synthetic leather using release paper technology and evaluate its physical and mechanical properties. PU solution was coated onto textured release paper, followed by drying, curing, and lamination with textile fabric to obtain the final leather-like material. The prepared product successfully reproduced a leather-like surface texture. Mechanical testing revealed tensile strength values of 11–18 MPa and elongation at break of 180–300%, indicating adequate strength, flexibility, and durability for practical applications. The process also offers advantages such as lower volatile organic compound emissions, avoidance of chromium-based tanning chemicals, and potential reuse of release paper. These findings demonstrate that PU-based synthetic leather produced by this method is a promising alternative to conventional natural leather. The developed material demonstrates potential for sustainable industrial synthetic leather 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).
Adsorption of TBP from wastewater using lignite-derived activated carbon Kim, Guk Chol; Kim, Jong Hyok; Choe, Yong A.; O, Jin Song
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20715

Abstract

This study aimed to describe the adsorption behavior of tributyl phosphate on carbonaceous GAC and determine whether it might be more promising than conventional inorganic adsorbents in the adsorption treatment of organic wastewater. This carbonaceous granular activated carbon (GAC) was prepared by steam activation of crushed and carbonized lignite. It has a well-developed pore structure, with about 20% of the pores being micropores (<1.7 nm), 65% mesopores (2-30 nm), and 15% macropores (>50 nm). Moreover, the surface contains functional groups such as -OH, C=C, and C-O-C. The higher the solid-liquid ratio (SLR), the higher the TBP adsorption amount and adsorption rate of carbonaceous GAC. At a SLR of 1:100, the TBP adsorption capacity of carbonaceous GAC with lignite is 38.7 mg/g, the adsorption rate is 96.2%, and under the same conditions, commercial coconut-shell GAC is 39.8 mg/g and 99.6%. The adsorption equilibrium time was 120 min. The cost of the proposed carbonaceous GAC is less than one-fifth that of imported commercial coconut shell GAC, indicating its superior applicability and affordability.
Parametric Optimization of Solvent Extraction of Soybean Oil Jumare, Ismail Abubakar; Momoh, Omuya Raheem; Jumare, Sani Abubakar
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20708

Abstract

Edible oil extraction via favorable conditions is central to industrial growth and sustainability. This paper investigates the optimum conditions for the soybean oil extraction via solid-liquid or leaching mechanism. This was done by varying parameters viz. the solvent concentration, temperature, and time of extraction using a soxhlet apparatus in a water bath. The oil characterization was also carried out focusing on some physic-chemical properties. Statistical analysis was lastly carried out on different parameters of the oil extraction in view of correlation or statistical significance test using Analysis of Variance (ANOVA). Results showed the highest percentage yield of the oil as 19.25 Wt. % with the optimum conditions being 180 minutes of extraction, 70oC, and 300 ml n-hexane. The statistical significance evaluation showed F values of 6545.26, 63.07, 272.65, and 38.75 for soy cake weight loss with corresponding moisture content, variations in solvent extraction, temperature and time with their corresponding oil yields respectively, all greater than their critical F values. However, the F value determined for the sets of oil yield for the 3 parametric variations being 1.21, was found to be greater than its critical F value. Hence, these conditions will be useful in maximizing soybean oil production at best possible cost. Also, Statistical significant evidence exist from the robust data analysis to show clear relationship on all the tested parametric variations for the oil extraction with their corresponding oil yields.
Process Optimization for Conversion Rate in NO Oxidation to NO2 over Co3O4 Catalyst AlGhifari, Muhammad Iqbal; Diarso, Nailalthaf Putra; Hutagaol, Jonathan Ivander; Wibowo, Muhammad Rafi Hafiyan; Nurazizah, Febriyanti; Santosa, Edward Emmanuel
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20712

Abstract

This study aims to evaluate the effect of flow rate and temperature variation on heat transfer performance in a heat exchange system. The analysis was conducted under steady-state conditions by examining key parameters, including heat transfer rate (Q), overall heat transfer coefficient (U), and logarithmic mean temperature difference (ΔT<sub>LMTD</sub>). In addition, dimensionless numbers such as Reynolds, Nusselt, and Prandtl were used to characterize the flow regime and convective heat transfer behavior under different operating conditions. The evaluation was carried out by analyzing the relationship between these parameters to understand the influence of operating variables on heat transfer characteristics.The results indicate that an increase in flow rate leads to improved heat transfer performance, as shown by higher values of U and enhanced convective heat transfer coefficients on both hot and cold fluid sides. This behavior is associated with increased turbulence intensity and a reduction in thermal boundary layer thickness, which promotes more effective heat transfer. However, deviations between theoretical and calculated values were observed, particularly on the cold fluid side. These deviations are influenced by changes in fluid properties, especially viscosity and thermal conductivity, which affect the Reynolds and Prandtl numbers. In general, the increase in flow rate results in higher Reynolds and Nusselt numbers, although a decrease in the Prandtl number was observed due to a more significant reduction in viscosity compared to thermal conductivity.Furthermore, increasing the inlet temperature of the hot fluid leads to a greater temperature difference between the hot and cold fluids, resulting in a higher logarithmic mean temperature difference (ΔT<sub>LMTD</sub>). Despite this increase, the overall heat transfer coefficient does not always show a proportional improvement, indicating the presence of non-ideal effects such as thermal resistance and possible fouling within the system. These findings demonstrate that heat transfer performance is influenced by the combined effects of flow rate, temperature variation, and fluid properties, and highlight the importance of considering these factors in evaluating and optimizing heat exchange processes.
Energy Optimization of Methanol Production using CO₂from Natural Gas Sweetening via Reactor Heat Recovery, Compressor Integration, and Cooling Water Reuse Alghiffary, Farrel Dzakwan; Perdana, Jaguar Mulia; Thomson, Theona Melinda; Karima, Dania Alya; Nathania, Alma Camila; Rahim, Renny Gustiara; Putri, Cahya Kamila Ramadhani
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20705

Abstract

Methanol production via CO₂ hydrogenation is an efficient alternative for supporting energy sustainability and reducing carbon emissions; however, conventional processes still face limitations in energy efficiency and resource utilization. This study aims to optimize the methanol production process through the integration of heat recovery, compressor energy utilization, and water recycling. Simulations were conducted using Aspen HYSYS by comparing baseline process conditions with modified process conditions under the same operating conditions. The results show that integrating heat from the reactor effluent and the cooling unit reduces external energy requirements, while the water recycling system successfully reduces fresh water usage by up to 100%. Additionally, heating energy requirements decreased by 27.21%, and compressor energy needs were fully met through internal energy recovery. From an economic perspective, significant operational cost savings were achieved, particularly in steam consumption, without compromising product quality, as methanol purity remained at 97.91%. Overall, the integration of mass and energy in this process has proven capable of improving efficiency, reducing costs, and supporting the sustainability of CO₂-based methanol production.
Kinetic Modeling and Reactor Optimization of n-Butane Oxidative Dehydrogenation to Butadiene with Temperature-Dependent Kinetics in a Heterogeneous Catalytic System Jannah, Asyifa Raudjatul; Prabaswari, Rr. Nabila Nindya Mustika; Mahsa, Haura Nadhira; Hakim, Muhammad Salman
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20711

Abstract

Oxidative dehydrogenation (ODH) of n-butane is regarded as a promising alternative route for the efficient synthesis of 1,3-butadiene. This study proposes a temperature-dependent kinetic model formulated using a power-law approach and applies it to a plug flow reactor (PFR) simulation in Aspen HYSYS. The model incorporates consecutive dehydrogenation reactions along with competing side reactions, including cracking pathways. Simulation results indicate that the developed kinetic model adequately represents the reaction mechanism, as reflected by the formation of 1,3-butadiene as the primary product and hydrogen as a secondary product. An increase in operating temperature from 450 to 600°C significantly enhances n-butane conversion and butadiene yield, achieving values of 0.8700 and 0.8690, respectively, while maintaining selectivity nearly equal to unity. This trend confirms that the reaction rates are predominantly governed by Arrhenius-type kinetics, where higher temperatures favor the main dehydrogenation reaction over undesired side reactions. In contrast, changes in reactor volume have a comparatively minor impact on performance, indicating a kinetically controlled system with limited sensitivity to residence time. Overall, the proposed kinetic framework provides a reliable basis for evaluating reactor performance and supports process optimization and design for efficient ODH-based butadiene production.
Self-Strengthening Bio-based Coatings via Autoxidative Cross-linking of Linseed Oil-Derived Surfactants Kim, Ri Myong; Pak, Hyon Tae; Hong, Son Il; Kang, Song Hun; Jo, Song Ik; Ju, Su Jin; Han, Yong Hwan; Liang, Il Song
Journal of Chemical Engineering Research Progress 2026: JCERP, Volume 3 Issue 2 Year 2026 (December) (Issue in Progress)
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20691

Abstract

A high-performance, bio-based wax emulsion was formulated using surfactants derived from linseed oil—linseed oil sodium soap (LOS) and linseed oil monoglyceride (LOM). Based on their complementary hydrophilic-lipophilic balance (HLB ~18 for LOS, ~5 for LOM), a 50:50 blend was predicted to match the HLB requirement of beeswax (9–12). Experimental optimization confirmed that a 15% beeswax emulsion stabilized by 5% total concentration of this blend exhibited exceptional properties: fine particle size (D[4,3] = 307 nm), high electrostatic stability (ζ = -31.7 mV), and resistance to centrifugation and thermal aging (50 °C, >28 days). The key innovation lies in the dry film performance. Quantitative FTIR analysis revealed a 72% consumption of C=C bonds over 30 days, confirming spontaneous oxidative crosslinking of the surfactants' unsaturated bonds. This crosslinking led to a continuous 59% increase in elastic modulus (255 → 405 MPa) and superior water resistance (0.9% absorption), significantly outperforming films prepared with conventional saturated or synthetic emulsifiers. This work demonstrates that linseed oil-derived surfactants function as dual-purpose agents, effective emulsifiers and latent crosslinkers, providing a novel strategy for sustainable, high-performance coatings that evolve functionally after application. The intrinsic coating properties were established using PET as an inert model substrate to isolate coating performance from substrate effects. The exceptional barrier and mechanical properties of the developed coating remained effective in preliminary evaluations on paper substrates, confirming its potential for sustainable packaging applications where water resistance and mechanical durability are critical. 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).
Effect of Temperature and Pressure Variation on CO₂ Methanation Performance in a PFR Reactor Using Ni/Al₂O₃ Catalyst Dwi Azzahra, Mutiara Sahita; Arifa, Adinda Anandyta; Clara Sirait, Angelica Ruth; Nurqolbi, Saskia Syifa; Ayun, Silviyana Rahma Qurrota; Dinata, Yusup Abdillah
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20714

Abstract

This study investigates the effect of feed temperature and pressure on the performance of CO₂ methanation using simulation results from Aspen HYSYS. The analysis focuses on the variation of CO and CH₄ mole fractions in the product stream under temperature ranges of 350–500°C and pressure ranges of 100–300 kPa. The results show that temperature has a minimal effect on both CO and CH₄ compositions, with only slight fluctuations observed, indicating that the system operates equilibrium conditions. In contrast, pressure exhibits a more noticeable influence, where increasing pressure leads to a gradual decrease in CO mole fraction and a corresponding increase in CH₄ mole fraction. These findings are consistent with the exothermic nature of the methanation reaction and Le Chatelier’s principle, confirming that higher pressure favors methane formation. Overall, the study highlights that pressure is a more significant operating parameter than temperature in enhancing CO₂ conversion to CH₄ under the investigated conditions.

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