cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Istadi
Contact Email
istadi@che.undip.ac.id
Phone
+6281316426342
Journal Mail Official
bcrec@live.undip.ac.id
Editorial Address
Editorial Office of Bulletin of Chemical Reaction Engineering & Catalysis Laboratory of Plasma-Catalysis (R3.5), UPT Laboratorium Terpadu, Universitas Diponegoro Jl. Prof. Soedarto, Semarang, Central Java, Indonesia 50275
Location
Kota semarang,
Jawa tengah
INDONESIA
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 803 Documents
 9   10   11   12   13 
Kinetic and Thermodynamics of Methylene Blue Adsorption onto Zero Valent Iron Supported on Mesoporous Silica Atyaf Khalid Hameed; Nugroho Dewayanto; Du Dongyun; Mohd Ridzuan Nordin; Mohd Hasbi Ab Rahim
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 2 Year 2016 (August 2016)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.11.2.443.250-261

Abstract

Zero valent iron supported on mesoporous silicanano particles (NZVI/MSNs) was prepared by the aqueous phase borohydride reduction methods. Prior to the reduction, mesoporous silica nanoparticles (MSNs) were prepared through the activation of fumed silica with concentrated HCl by refluxing at 90 °C. FTIR, XRD, FESEM, EDX and BET were used to characterize theadsorbents prepared. BET surface areas of MSNs, NZVI, and NZVI/MSNs were 126, 41, and 72 m2/g for, respectively. The performance of NZVI/MSNs as adsorbent was examined by adsorption of methylene blue (MB), performed in series of batch experiments. In the kinetic studies, pseudo first order and pseudo second order kinetic models were examined. The pseudo second order equation provided the best fit with the experimental data. Thermodynamic studies indicated that the adsorption process is endothermic with ΔH° was 90.53 kJ/mol. Positive ΔS° (300 J/mol) and negative ΔG° (-6.42 kJ/mol) was recorded, indicating the spontaneous of the adsorption process and naturally favorable. 
Effect of Incorporating TiO2 Photocatalyst in PVDF Hollow Fibre Membrane for Photo-Assisted Degradation of Methylene Blue Norashima Abdullah; Bamidele Victor Ayodele; Wan Nurdiyana Wan Mansor; Sureena Abdullah
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 3 Year 2018 (December 2018)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.13.3.2909.588-591

Abstract

A rapid growth in populations, living standards and industries has become a key contribution to water pollution. Clean water is an important resource for life, sustainable development and ecosystems. This study therefore investigates the photocatalytic degradation of an organic pollutant (methylene blue) using PVDF/TiO2 membrane. The main objective of the study is to determine the synergistic effect of incorporating TiO2 photocatalyst into the PVDF membrane on the mineralization of the organic pollutants. The TiO2 photocatalyst was characterized using Ultraviolet Visible Spectroscopy (UV-Vis), Scanning Electron Microscopy (SEM), Brunauer, Emmettt, and Teller (BET), and X-ray Diffraction (XRD) techniques. While the fabricated PVDF/TiO2 hollow fibre membranes were then characterized by scanning electron microscopy (SEM) and contact angle. The performance of the membrane was evaluated by photodegradation of methylene blue. The degradation study revealed that both the undoped PVDF and the TIO2 doped PVDF membrane were capable of degrading methylene blue. The performance of the membrane can be ranked as follows 9 wt% TiO2/PVDF > 6 wt% TiO2/PVDF > 3 wt% TiO2/PVDF > undoped PVDF showing the synergistic effect of incorporating the TiO2 photocatalyst into the PVDF membrane.  The kinetics data of obtained from the rate of degradation of the methylene blue fitted well into first order kinetic data with apparent kinetic constants of 0.0591, 0.0295, 0.0188, and 0.0100 obtained using pure membrane, undoped PVDF, 3 wt% TiO2/PVDF, 6 wt% TiO2/PVDF, and 9 wt% TiO2/PVDF, respectively.
Kinetics of Enolisation of Acetophenone and p-Bromoacetophenone: Comparative Studies Swati Malhotra; Dipika Jaspal
Bulletin of Chemical Reaction Engineering & Catalysis 2013: BCREC Volume 8 Issue 2 Year 2013 (December 2013)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.8.2.4653.105-109

Abstract

Biomolecules (Amino Acids) have been used as catalysts for the study of kinetics involved in enolosation of acetophenone and p-bromoacetophenone, and comparative study has been carried out. The process of enolisation was studied by halogenations reactions using iodine. The stoichiometery was determined in each case and the kinetic reactions were carried out to study the effect of catalyst and temperature. The enolisation process was investigated as a bimolecular reaction. The rate of enolisation was of the order p- Bromoacetophenone > Acetophenone depending on the type of substituent. The process was investigated to follow Arrhenius equation. Values for various thermodynamic parameters like Entropy (∆S≠) and Enthalpy (∆H≠) were found to be -2.126 e.u. & -10.88 e.u. and 19.06 K. cal mol-1 & 19.01 K. cal mol-1 for acetophenone and p-bromoacetophenone respectively. © 2013 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)
CeO2-TiO2 Photocatalyst: Ionic Liquid-Mediated Synthesis, Characterization, and Performance for Diisopropanolamine Visible Light Degradation Jagath Retchahan Sivalingam; Fai Kait Chong; Cecilia Devi Wilfred
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 1 Year 2018 (April 2018)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.13.1.1396.170-178

Abstract

CeO2-TiO2 photocatalyst with Ce:Ti molar ratio of 1:9 was synthesized via co-precipitation method in the presence of 1-ethyl-3-methyl imidazolium octylsulfate, [EMIM][OctSO4] (CeO2-TiO2-IL). The ionic liquid acts as a templating agent for particle growth. The CeO2-TiO2 and TiO2 photocatalysts were also synthesized without any ionic liquid for comparison. Calcination was conducted on the as-synthesized materials at 400˚C for 2 h. The photocatalysts were characterized using diffuse reflectance UV-Vis spectroscopy (DR-UV-Vis), field emission scanning electron microscopy (FESEM), X-ray powder diffraction (XRD), and surface area and pore size analyzer (SAP). The presence of CeO2 has changed the optical property of TiO2. It has extended the absorption edge of TiO2 from UV to visible region. The calculated band gap energy decreased from 2.82 eV (TiO2) to 2.30 eV (CeO2-TiO2-IL). The FESEM morphology showed that samples forms aggregates and the surface smoothens when ionic liquid was added. The average crystallite size of TiO2, CeO2-TiO2, and CeO2-TiO2-IL were 20.8 nm, 5.5 nm, and 4 nm. In terms of performance, photodegradation of 1000 ppm of diisopropanolamine (DIPA) was conducted in the presence of hydrogen peroxide (H2O2) and visible light irradiation which was provided by a 500 W halogen lamp. The best performance was displayed by CeO2-TiO2-IL calcined at 400˚C. It was able to remove 82.0% DIPA and 54.8% COD after 6 h reaction. 
Product Distribution of Chemical Product Using Catalytic Depolymerization of Lignin Damayanti Damayanti; Yeni Ria Wulandari; Ho-Shing Wu
Bulletin of Chemical Reaction Engineering & Catalysis 2020: BCREC Volume 15 Issue 2 Year 2020 (August 2020)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.15.2.7249.432-453

Abstract

Lignin depolymerization is a very promising process which can generate value-added products from lignin raw materials. The main objective of lignin depolymerization is to convert the complex molecules of lignin into small molecules. Nevertheless, lignin is natural polymer which the molecules of lignin are extremely complicated due to their natural variability, and it will be a big challenge to depolymerize lignin, particularly high water yield. The various technology and methods are developed to depolymerize lignin into biofuels or bio chemical products including acid/base/metallic catalyzed lignin depolymerization, pyrolysis of lignin, hydroprocessing, and gasification. The distribution and yield of chemical products depend on the reaction operation condition, type of lignin and kind of catalyst. The reactor type, product distributions and specific chemicals (benzene, toluene, xylene, terephthalic acid) production of lignin depolymerization are intensive discussed in this review. Copyright © 2020 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Sulfonated Mesoporous Silica-Carbon Composite Derived from a Silicate-Polyethylene Glycol Gel and Its Application as Solid Acid Catalysts Shofiyya Julaika; Agus Farid Fadli; Widiyastuti Widiyastuti; Heru Setyawan
Bulletin of Chemical Reaction Engineering & Catalysis 2022: BCREC Volume 17 Issue 1 Year 2022 (March 2022)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.17.1.11795.13-21

Abstract

Solid acid catalyst is a promising alternative to the counterpart homogeneous acid for esterification reaction from the viewpoint of reusability and environmental concerns. This work aims to develop sulfonated mesoporous silica-carbon composite as solid acid catalyst for the esterification. The catalyst was synthesized from sodium silicate as the silica precursor and polyethylene glycol (PEG) as both carbon precursor and template via a sol-gel route in an aqueous system. Then, it was carbonized to produce mesoporous silica-carbon composite. Using the proposed method, the surface area of the silica-carbon composite could reach as high as 1074.21 m2/g. Although the surface area decreased to 614.02 m²/g when it was functionalized with sulfonate groups, the composite had a high ionic capacity of 5.3 mEq/g and exhibited high catalytic activity for esterification reaction of acetic acid with ethanol. At a reaction temperature of 80 °C, the acetic acid conversion reached 76.55% in 4 h. In addition, the catalyst had good reusability, which can be comparable with the commercial catalyst Foltrol F-007. It appears that the sulfonated silica-carbon composite prepared from sodium silicate using PEG as the carbon source a promising candidate as catalyst for esterification and the related area. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
The Applications of Mixed Metal Oxides to Capture the CO2 and Convert to Syn-Gas Sajan Babhare; Reshma Raskar; Komal Bobade; Abaji Gaikwad
Bulletin of Chemical Reaction Engineering & Catalysis 2015: BCREC Volume 10 Issue 2 Year 2015 (August 2015)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.10.2.7381.125-142

Abstract

The applications of different mixed metal oxides were explored for the capture of CO2 and convert of CO2 to syn-gas. The several samples of the mixed metal oxides were prepared by the sol-gel, solid-solid fusion, precipitation, molten salt and template methods in order to investigate the performance of mixed mtal oxides to the CO2 applications. These samples were calcined for the 3 h in air at 900 oC. The mixed metal oxides samples were characterized by acidity/basicity, surface area, XRD pattern, SEM images and to capture CO2. The basicity and surface area of the samples of mixed metal oxides were found to be in the range from 0.7 to 15.7 mmol.g-1 and 2.24 to 138.76 m2.g-1, respectively. The ob-tained results of prepared mixed metal oxides by different method were compared for the purpose of searching the efficient materials. The temperature profiles of the captured CO2 by the samples of mixed metal oxides were obtained in the range 100 to 800 oC. The captured CO2 was found to be in the range from 7.36 to 26.93 wt.%. The conversions of CO2 by methane were explored to syn-gas over the mixed metal oxides including the calcium iron lanthanum mixed metal oxides and (5 wt.%) Pd/Al2O3 at 700 oC with the gas hourly space velocities (GHSV) 6000 ml.h-1.g-1 of methane, 6000 ml.h-1.g-1 of CO2 and 24000 ml.h-1.g-1 of helium. © 2015 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)
Selective Synthesis, Characterization and Kinetics Studies of poly(α-Methyl styrene) induced by Maghnite-Na+ Clay (Algerian MMT) Moulkheir Ayat; Mohamed Belbachir; Abdelkader Rahmouni
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.11.3.578.376-388

Abstract

A new and efficient catalyst of Na-Montmorillonite (Na+-MMT) was employed in this paper for α-methylstyrene (AMS) cationic polymerization. Maghnite clay, obtained from Tlemcen Algeria, was investigated to remove heavy metal ion from wastewater. “Maghnite-Na” is a Montmorillonite sheet silicate clay, exchanged with sodium as an efficient catalyst for cationic polymerization of many vinylic and heterocyclic monomers. The various techniques, including 1H-NMR, 13C-NMR, IR, DSC and Ubbelohde viscometer, were used to elucidate structural characteristics and thermal properties of the resulting polymers. The structure compositions of “MMT”, “H+-MMT” and “Na+-MMT” have been developed. It was found that the cationic polymerization of AMS is initiated by Na+-MMT at 0 °C in bulk and in solution. The influences of reaction temperature, solvent, weight ratio of initiator/monomer and reaction time on the yield of monomer and the molecular weight are investigated. The kinetics indicated that the polymerization rate is first order with respect to the monomer concentration. A possible mechanism of this cationic polymerization is discussed based on the results of the 1H-NMR Spectroscopic analysis of these model reactions. A cationic mechanism for the reaction was proposed. From the mechanism studies, it was showed that monomer was inserted into the growing chains.
Kinetic of Anthocyanin Degradation in Roselle Extract Dried with Foaming Agent at Different Temperatures Setia Budi Sasongko; Mohamad Djaeni; Febiani Dwi Utari
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.2.2875.320-325

Abstract

This research studied the effect of drying temperature on the kinetic of degradation anthocyanin in roselle extract drying with foam under dehumidified air at temperatures ranging 40-60 oC.  During the drying process, the anthocyanin content in the roselle extract was observed every 20 minutes for 120 minutes. The data was used for estimating the kinetic parameters of anthocyanin degradation namely constant of anthocyanins degradation rate and reaction order. The kinetic parameters were estimated and fitted with experimental data at various drying condition. Result showed that the anthocyanins degradation closed to the second order reaction. Meanwhile, the constant of anthocyanins degradation rate at various drying temperatures followed Arhenius correlation. With the result, retention of anthocyanin during the drying can be well estimated for various drying time and temperature. 
MoO3/SiO2-ZrO2 Catalyst: Eeffect of Calcination Temperature on Physico-chemical Properties and Activities in Nitration of Toluene Sunil M. Kemdeo
Bulletin of Chemical Reaction Engineering & Catalysis 2012: BCREC Volume 7 Issue 2 Year 2012 (December 2012)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.7.2.3521.92-104

Abstract

12 wt % molybdena was deposited over 1:1 silica zirconia mixed oxide support and the resultant catalyst was calcined between the 500 to 700 oC range of temperature. The samples were characterized by XRD, FT-IR, BET, SEM, NH3-TPD and pyridine adsorbed FT-IR techniques.  Nitration of toluene was studied as a model reaction over the prepared catalysts and parameters like effect of reaction temperature, effect of various solvents, catalyst reusability are studied. It was found that conversion of toluene varies with the presence of Brönsted acid sites over the catalyst surface and para-nitrotoulene selectivity is associated with pore size of the catalyst. Over the same catalysts, nitration was extended for some other aromatics. Avoid of sulfuric acid in the present process is an interesting concern in view of green chemistry. © 2012 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)

Page 11 of 81 | Total Record : 803

 9   10   11   12   13 

Filter by Year

2007 2026


Reset
Filter By Issues
All Issue 2026: BCREC Volume 21 Issue 1 Year 2026 (April 2026) (Issue in Progress) 2025: BCREC Volume 20 Issue 4 Year 2025 (December 2025) 2025: BCREC Volume 20 Issue 3 Year 2025 (October 2025) 2025: BCREC Volume 20 Issue 2 Year 2025 (August 2025) 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025) 2025: Just Accepted Manuscript and Article In Press 2025 2024: BCREC Volume 19 Issue 4 Year 2024 (December 2024) 2024: BCREC Volume 19 Issue 3 Year 2024 (October 2024) 2024: BCREC Volume 19 Issue 2 Year 2024 (August 2024) 2024: BCREC Volume 19 Issue 1 Year 2024 (April 2024) 2023: BCREC Volume 18 Issue 4 Year 2023 (December 2023) 2023: BCREC Volume 18 Issue 3 Year 2023 (October 2023) 2023: BCREC Volume 18 Issue 2 Year 2023 (August 2023) 2023: BCREC Volume 18 Issue 1 Year 2023 (April 2023) 2022: BCREC Volume 17 Issue 4 Year 2022 (December 2022) 2022: BCREC Volume 17 Issue 3 Year 2022 (September 2022) 2022: BCREC Volume 17 Issue 2 Year 2022 (June 2022) 2022: BCREC Volume 17 Issue 1 Year 2022 (March 2022) 2021: BCREC Volume 16 Issue 4 Year 2021 (December 2021) 2021: BCREC Volume 16 Issue 3 Year 2021 (September 2021) 2021: BCREC Volume 16 Issue 2 Year 2021 (June 2021) 2021: BCREC Volume 16 Issue 1 Year 2021 (March 2021) 2020: BCREC Volume 15 Issue 3 Year 2020 (December 2020) 2020: BCREC Volume 15 Issue 2 Year 2020 (August 2020) 2020: BCREC Volume 15 Issue 1 Year 2020 (April 2020) 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019) 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019) 2019: BCREC Volume 14 Issue 1 Year 2019 (April 2019) 2018: BCREC Volume 13 Issue 3 Year 2018 (December 2018) 2018: BCREC Volume 13 Issue 2 Year 2018 (August 2018) 2018: BCREC Volume 13 Issue 1 Year 2018 (April 2018) 2017: BCREC Volume 12 Issue 3 Year 2017 (December 2017) 2017: BCREC Volume 12 Issue 2 Year 2017 (August 2017) 2017: BCREC Volume 12 Issue 1 Year 2017 (April 2017) 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016) 2016: BCREC Volume 11 Issue 2 Year 2016 (August 2016) 2016: BCREC Volume 11 Issue 1 Year 2016 (April 2016) 2015: BCREC Volume 10 Issue 3 Year 2015 (December 2015) 2015: BCREC Volume 10 Issue 2 Year 2015 (August 2015) 2015: BCREC Volume 10 Issue 1 Year 2015 (April 2015) 2014: BCREC Volume 9 Issue 3 Year 2014 (December 2014) 2014: BCREC Volume 9 Issue 2 Year 2014 (August 2014) 2014: BCREC Volume 9 Issue 1 Year 2014 (April 2014) 2013: BCREC Volume 8 Issue 2 Year 2013 (December 2013) 2013: BCREC Volume 8 Issue 1 Year 2013 (June 2013) 2013: BCREC Volume 7 Issue 3 Year 2013 (March 2013) 2012: BCREC Volume 7 Issue 2 Year 2012 (December 2012) 2012: BCREC Volume 7 Issue 1 Year 2012 (June 2012) 2011: BCREC Volume 6 Issue 2 Year 2011 (December 2011) 2011: BCREC Volume 6 Issue 1 Year 2011 (June 2011) 2010: BCREC Volume 5 Issue 2 Year 2010 (December 2010) 2010: BCREC Volume 5 Issue 1 Year 2010 (June 2010) 2009: BCREC Volume 4 Issue 2 Year 2009 (December 2009) 2009: BCREC Volume 4 Issue 1 Year 2009 (June 2009) 2008: BCREC Volume 3 Issue 1-3 Year 2008 (December 2008) 2007: BCREC: Volume 2 Issues 2-3 Year 2007 (October 2007) 2007: BCREC: Volume 2 Issue 1 Year 2007 (June 2007) More Issue