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Bulletin of Chemical Reaction Engineering & Catalysis
Published by Masyarakat Katalis Indonesia - Indonesian Catalyst Society
ISSN : -     EISSN : 19782993     DOI : https://doi.org/10.9767/bcrec
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Bulletin of Chemical Reaction Engineering & Catalysis, a reputable international journal, provides a forum for publishing the novel technologies related to the catalyst, catalysis, chemical reactor, kinetics, and chemical reaction engineering. Scientific articles dealing with the following topics in chemical reaction engineering, catalysis science, and engineering, catalyst preparation method and characterization, novel innovation of chemical reactor, kinetic studies, etc. are particularly welcome. However, articles concerned on the general chemical engineering process are not covered and out of the scope of this journal. This journal encompasses Original Research Articles, Review Articles (only selected/invited authors), and Short Communications, including: fundamentals of catalyst and catalysis; materials and nano-materials for catalyst; chemistry of catalyst and catalysis; surface chemistry of catalyst; applied catalysis; applied bio-catalysis; applied chemical reaction engineering; catalyst regeneration; catalyst deactivation; photocatalyst and photocatalysis; electrocatalysis for fuel cell application; applied bio-reactor; membrane bioreactor; fundamentals of chemical reaction engineering; kinetics studies of chemical reaction engineering; chemical reactor design (not process parameter optimization); enzymatic catalytic reaction (not process parameter optimization); kinetic studies of enzymatic reaction (not process parameter optimization); the industrial practice of catalyst; the industrial practice of chemical reactor engineering; application of plasma technology in catalysis and chemical reactor; and advanced technology for chemical reactors design. However, articles concerned about the "General Chemical Engineering Process" are not covered and out of the scope of this journal.
Arjuna Subject : Teknik Kimia (semua kategori) - Katalisis
Articles 860 Documents
 82   83   84   85   86 
Efficient Deoxygenation of Palm Oil to Green Diesel Using a Metal Oxide Catalysts Supported on ZrO2-Enhanced Graphene Oxide Attared Fadhil Hassan; Hassan Thamer Abdulsahib; Faris Abdulridha Jassim Al-Doghachi; Taufiq-Yap Yun Hin
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20693

Abstract

NiO, Fe2O3, and bimetallic oxide NiFe2O4 catalysts supported on graphene oxide and promoted with ZrO2 were synthesized via wet-impregnation approach. A systematic characterization of the catalysts physicochemical properties was evaluated using X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Fourier Transform Infrared (FTIR), Temperature -programmed desorption CO2 (TPD-CO2), Brunaur-Emmett-Teller (BET) surface area, Field emission Scanning electron microscopy (FESEM), and Transmission electron microscopy (TEM) analysis. The catalysts were evaluated as heterogeneous catalysts in the deoxygenation (DO) of palm oil for green diesel production under varying operating conditions. Among the catalysts tested, Fe2O3/ZrO2-GO (calcined at 400 °C for 4 h, 5 wt% loading) demonstrated superior catalytic activity, achieving a maximum hydrocarbon yield (HC%) of 98.0%, bio-jet fuel (BJF) selectivity of 40%, and kerosene yield of 86%. The exceptional performance is attributed to the catalyst’s large BET surface area (18.64 m2/g), substantial pore volume (0.027 cm3/g), and moderate surface basicity (3234.65 μmol/g), which collectively facilitate efficient deoxygenation via decarboxylation (DCO2) and decarbonylation (DCO) pathways while suppressing undesired cracking. Furthermore, the catalyst exhibited remarkable stability and reusability over four consecutive reaction cycles, retaining 92% hydrocarbon yield and 80.9% kerosene yield, with BJF selectivity increasing to 84%. The gradual decline in performance is attributed to carbon deposition (coke formation), pore blockage, and sintering-induced degradation of the mesoporous network, as confirmed by post-reaction XRD and BET analysis. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
ZIF-67 Incorporated Sodium Alginate/Polyvinyl Alcohol Composite Beads for Efficient Adsorptive Removal of Reactive Blue 19 from Aqueous Solution Nguyen Thi Hong Nhung; Pham Thi Huynh Nhu; Hoang Ai Le Pham; Thi Hong Anh Nguyen
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20747

Abstract

In this study, ZIF-67/SA/PVA composite beads were synthesized and used to remove Reactive Blue 19 (RB19) from aqueous solution. The composites were prepared by integrating cobalt-based ZIF-67 into a sodium alginate/polyvinyl alcohol matrix with different SA/PVA ratios. The physicochemical properties of the composites were characterized by FT-IR, XRD, SEM–EDS, BET, TG, and pHpzc analyses. Among the investigated samples, ZIF-67/SA/PVA-1:3 exhibited the highest RB19 removal efficiency (96.45%). The removal efficiency increased with increasing adsorbent dosage and temperature, but decreased at higher RB19 concentrations. The pH-dependent adsorption behavior was consistent with the pHpzc of 7.77. The negative ΔG° values (−5.308 to −7.298 kJ.mol-1) and the positive ΔH° value of 15.297 kJ.mol-1 indicated that the adsorption process was spontaneous and endothermic. The equilibrium data fitted the Langmuir model better than the Freundlich model. These findings demonstrate the potential of ZIF-67/SA/PVA as a composite adsorbent for removing reactive dyes from contaminated water. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Optimization and Kinetic Studies of Enzymatic Saccharification of Double-Stage Ozonolysis Pretreated Oil Palm Empty Fruit Bunch for Enhanced Sugar Production Nur Zahidah Abd Majid; Amnani Shamjuddin; Mohd Asmadi; Umi Aisah Asli; Sharifah Nurain Hussain; Riyani Tri Yulianti; Nur Hidayah Zainan; Nardiah Rizwana Jaafar; Asiah Nusaibah Masri; Gwendoline Christophe; Philippe Michaud
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20721

Abstract

Oil Palm Empty Fruit Bunch (OPEFB), an abundant lignocellulosic biomass in Malaysia, is a promising feedstock for producing Total Reducing Sugar (TRS), although its recalcitrant structure limits enzymatic conversion. This study proposes a novel double-stage ozonolysis pretreatment integrated with intermediate alkaline swelling to enhance cellulose accessibility and saccharification efficiency. Structural modifications were confirmed through compositional analysis, TGA, XRD, FTIR, and SEM. Enzymatic saccharification (ES) was optimized using Response Surface Methodology (RSM) based on a Face-Centered Central Composite Design (FCCCD), evaluating reaction time, biomass loading, and temperature. Analysis of Variance (ANOVA) indicated a significant model (R2 = 0.88), with optimal conditions of 44 h reaction time, 1.8 % w/v biomass loading, and 50 °C temperature, achieving a maximum TRS yield of 42.75%. The double-stage ozonolysis outperformed single-stage and alkaline pretreatments, yielding the highest cellulose enrichment (up to 79 wt%) and improved digestibility. Kinetic analysis revealed a substantial reduction in the Michaelis-Menten constant ( ) from 175.713 to 9.010 mg/mL, indicating enhanced enzyme–substrate affinity. These findings demonstrate a robust and efficient strategy for improving biomass-to-sugar conversion. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Green Synthesis of Silver Nanoparticles Using Soursop Leaf Extract for Photocatalytic Degradation of Textile Wastewater Iryanti Eka Suprihatin; Anak Agung Sagung Alit Sukmaningsih; Ni Made Utami Dwipayanti; Ida Ayu Gede Widihati; Ni Putu Diantariani; Ni Gusti Ayu Dwi Adhi Suastuti; I Gusti Ayu Kunti Sri Panca Dewi
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20726

Abstract

This study aimed to synthesize silver nanoparticles (AgNPs) as a photocatalyst and evaluate their performance for textile wastewater photodegradation since previous studies have mainly focused on photocatalytic degradation of model dye compounds, whereas studies using actual textile wastewater remain limited. The synthesis was achieved by extracting soursop leaves and mixing them with AgNO₃ and heating the mixture. After photodegradation reaction condition optimization, the optimum conditions were found at pH of 13, 15 minutes of irradiation time, and a volume of 0.5 mL of AgNPs. Under these conditions, a degradation percentage of 34.37-37.76% was achieved, with a reduction in BOD levels of 5.54-11.08% and COD levels of 8.66-12.22%. These results indicate the potential of AgNPs for textile wastewater treatment, although pretreatment may be required to improve degradation performance. Copyright © 2026 by Authors, Published by 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 Calcination Temperature on Structural Properties and Photocatalytic Activity of TiO2/Vermiculite Composite for Methylene Blue Degradation Nam Dao Duy; Trang Vu Minh; Hai Huynh Trung; Ha Thi Thu Vu
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20736

Abstract

This study investigated the effect of calcination temperature on the structural properties and photocatalytic performance of TiO2/vermiculite (TiO2/ver) composites for methylene blue (MB) degradation. The TiO2/ver composites were synthesized via a one-step sol-gel method using titanium (IV) isopropoxide (TTIP) as the precursor, followed by calcination at 450, 600 and 800 oC. Structural characterization by X-ray diffraction (XRD) revealed that the anatase phase predominance in samples calcined at 450 and 600 oC, whereas partial transformation to rutile occurred at 800 oC. Scanning electron microscopy (SEM) showed that increasing calcination temperature promoted particle growth and agglomeration. Fourier-transform infrared (FT-IR) analysis revealed the coexistence of characteristic Ti-O-Ti and Si-O vibrations and indicated possible interfacial interactions between TiO2 and the vermiculite support through a shift the Si-O stretching band. Textural analysis demonstrated a progressive decrease in specific surface area with increasing calcination temperature, suggesting thermally induced pore collapse and crystallite growth. Photocatalytic experiments demonstrated that the sample calcined at 450 oC (V-450) exhibited the highest photocatalytic activity, achieving complete MB degradation within 90 min under the optimal conditions of a catalyst dosage of 1.0 g.L-1, an initial MB concentration of 10 mg.L-1 and pH of 7. Kinetic analysis showed that the degradation followed pseudo-first-order kinetics. The superior performance of the V-450 was attributed to the optimal balance between crystallinity, specific surface area and phase composition. These findings highlight the critical role of calcination temperature in tuning the structure-activity relationship of TiO2/ver composites for photocatalytic wastewater treatment applications. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Cation-dependent Behavior of Aluminium under Pulsed Electrolysis Marina Kubanova; Tatyana Yureva; Elena Yatsenko; Yash Vijay Kataria; Alexandra Kuriganova; Mikhail Lipkin; Nina Smirnova
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20728

Abstract

For decades, chloride ions Cl⁻have been considered a key factor in the electrochemical behavior of aluminum in chloride electrolytes, including depassivation, pitting corrosion, and anodic dissolution. However, the influence of electrolyte cations has been considered secondary or ignored in most classical studies. In this study, we investigated the influence of electrolyte cations (MgCl2, CaCl2, SrCl2, BaCl2) on the electrochemical behavior of aluminum under the influence of an alternating symmetrical pulsed current with a density of 1 A.cm-2. The study found that in the presence of Ba2+ and Sr2+, aluminum is oxidized to form dispersed two-phase products AlOOH and Al(OH)3, with an average particle size of 1.9 and 2.2 nm for the AlOOH phase and 20.4 and 13.9 nm for the Al(OH)3 phase. In Mg2+ and Ca2+ chlorides, passivating films of Mg(OH)2 or Ca(OH)2 are formed, as well as layered double hydroxides – Mg6Al2(OH)16Cl2∙4H2O (Mg-Al LDH) or Ca2Al(OH)6Cl∙2H2O (Ca-Al LDH), respectively, which inhibit aluminum corrosion under pulse electrolysis conditions, even in the presence of activating Cl- ions. Copyright © 2026 by Authors, Published by 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 SiO2, ZrO2, and SiO2-ZrO2 Supports on Product Distribution in Glucose Hydrogenolysis over Cu-Ni-WOx Catalysts Ahmad Sholeh Romdlon; Yuniar Ponco Prananto; Siti Mariyah Ulfa
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 4 Year 2026 (December 2026) (Issue in Progress)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20724

Abstract

Biomass-derived glucose is an important platform molecule to produce value-added oxygenated chemicals through catalytic conversion. In this study, Cu-Ni-WOx catalysts supported on SiO2, ZrO2, and SiO2-ZrO2 were prepared by wet impregnation and evaluated for the hydrogenolysis of glucose in water. The catalysts were characterized by X-ray diffraction, SEM-EDX, and pyridine-adsorption FTIR to examine the relationship between catalyst structure, acidity, and catalytic behavior. Catalytic tests were carried out in a batch reactor at 300 °C under 2 MPa H2 for 2 h. All catalysts showed comparable glucose conversion in the range of 92.2-93.1%, whereas the support strongly influenced the distribution of liquid products. The SiO2-supported catalyst favored glycol/glycol-like compounds and cyclic ether/THF products, indicating a stronger tendency toward oxygen-retaining pathways. In contrast, the SiO2-ZrO2-supported catalyst showed higher distribution toward cyclic ketones and aliphatic alcohols, while the ZrO2-supported catalyst exhibited an intermediate pattern. These findings suggest that support-dependent acidity plays an important role in directing hydrogenolysis pathways and controlling the relative formation of oxygen-retaining and rearranged products. This work highlights the importance of support composition in tuning the product distribution of Cu-Ni-WOx catalysts for glucose valorization into value-added oxygenates. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Membrane-Assisted Cell Retention for Intensified Continuous Bioethanol Production Tri Partono Adhi; Handika Prasetya Dwiyasni; Mirani Susiloputri; Reynard Reynard; Khoiruddin Khoiruddin; I Gede Wenten
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 4 Year 2026 (December 2026) (Issue in Progress)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20737

Abstract

Continuous ethanol fermentation can achieve higher volumetric productivity than batch operation, but its performance is often limited by yeast washout, incomplete glucose conversion, and reduced fermentative activity under high-substrate and ethanol-stress conditions. This study evaluated an ultrafiltration membrane bioreactor for continuous ethanol fermentation using cell retention and controlled aeration. Glucose fermentation by Saccharomyces cerevisiae was evaluated in batch mode, conventional continuous anaerobic operation, anaerobic membrane bioreactor operation at dilution rates of 0.05 and 0.10 h⁻¹, and aerobic membrane bioreactor operation at 0.10 h⁻¹ with aeration rates of 0.08–0.30 vvm. Batch fermentation provided a reference for interpreting the continuous experiments: aerobic operation increased the final ethanol concentration from 65.7 to 89.5 g.L⁻¹ and the apparent maximum ethanol formation rate from 1.17 to 2.60 g.L⁻¹.h⁻¹, based on modified Gompertz fitting. In continuous operation, membrane-assisted cell retention reduced washout and increased biomass retention, glucose conversion, ethanol concentration, and volumetric productivity. At the same dilution rate of 0.10 h⁻¹, the anaerobic membrane bioreactor increased ethanol concentration from 2.8 ± 0.8 g.L⁻¹ to 43.4 ± 2.1 g.L⁻¹ and productivity from 0.3 ± 0.1 g.L⁻¹ h⁻¹ to 4.3 ± 0.2 g.L⁻¹.h⁻¹ relative to the non-membrane reactor. Lower dilution rate favored ethanol accumulation, whereas higher dilution rate favored volumetric productivity. Controlled aeration further enhanced productivity, reaching 5 g.L⁻¹.h⁻¹ at 0.08 vvm, but excessive aeration increased biomass accumulation while reducing ethanol yield and selectivity. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Backmatter (Right Transfer Agreement for Publishing Form) Istadi, Istadi
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20792

Abstract

Backmatter (Right Transfer Agreement for Publishing Form)
Synthesis and Characterization of Zeolite–Chitosan Composite from North Toraja Montmorillonite Mineral: Kinetic and Isotherm Study for Cu2+ Metal Ion Adsorption Jumianti Bunga Matande; Djabal Nur Basir; Paulina Taba; St. Fauziah; Syahruddin Kasim; Hasnah Natsir; Siti Khairunnur; Risnawati Risnawati
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 4 Year 2026 (December 2026) (Issue in Progress)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20730

Abstract

Natural montmorillonite from North Toraja, rich in silica and alumina, was employed as a precursor for synthesize cancrinite-type zeolite (CAN) through hydrothermal treatment at 170 °C for 24 h in 5 M NaOH solution. Zeolite, a porous aluminosilicate material widely applied in wastewater treatment, especially for heavy metal ion adsorption. To enhance adsorption performance, CAN was modified with chitosan through phase inversion, resulting in the formation of a zeolite–chitosan composite. Characterization using XRD, FTIR, SEM EDS, BET, and TGA DSC. XRD analyses revealed diffraction peaks at 2θ = 13.94°, 18.84°, 21.28°, 24.16°, 27.34°, 32.42°, 34.32°, 36.76°, and 42.46°. FTIR confirmed functional groups of CANat 678, 624, and 563 cm⁻¹ and chitosan at 2879 and 1643 cm⁻¹. SEM revealed a morphological change from sharp crystals to rough surface due to chitosan coating, while EDS identified the main elements of C, O, Na, Mg, Al, and Si. BET analysis indicated a surface area of 22.12 m²/g with pore diameter of approximately 28.48 nm. TGA-DSC indicated improved thermal stability, evidenced by a shift in degradation temperature attributed to strong zeolite-chitosan interaction. Adsorption studies for Cu²⁺ ions demonstrated optimum conditions at pH of 5 with a contact time of 150 min. Kinetic data followed a pseudo-second-order model, while equilibrium was best described by the Sips isotherm, with a maximum adsorption capacity of 360.65 mg/g. These findings confirm that CAN–Chitosan composite derived from North Toraja minerals are efficient and stable adsorbents for heavy metal removal, supporting sustainable wastewater treatment and environmental remediation. Copyright © 2026 by Authors, Published by 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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