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Bulletin of Chemical Reaction Engineering & Catalysis

bcrec
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Published by Universitas Diponegoro

ISSN : - EISSN : 19782993 DOI : -

Core Subject : Science, Engineering,

Chemical Engineering, Chemistry & Bioengineering Chemistry

Bulletin of Chemical Reaction Engineering & Catalysis (e-ISSN: 1978-2993), an international journal, provides a forum for publishing the novel technologies related to the catalyst, catalysis, chemical reactor, kinetics studies, and chemical reaction engineering.

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Articles 524 Documents

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Ultrasonically Promoted Synthesis of Ethyl 2-(naphthalen-2-yloxy)acetate in Solid-Liquid Heterogeneous Phase Transfer Catalysis Condition Pachaiyappan Abimannan; Venugopal Rajendran
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016)
Publisher : Department of Chemical Engineering - Diponegoro University

In this paper, the synthesis of ethyl 2-(naphthalen-2-yloxy)acetate from β-naphthol and ethyl 2-bromoacetate under ultrasound and catalyzed by quaternary ammonium salt in solid-liquid heterogeneous condition was described. Trace amount of water play a major role in this solid-liquid reaction. The reaction follows pseudo first order rate law. The apparent rate constant of the organic phase reaction was obtained form the experimental data. The combination of small amount of tetrabutylammonium bromide (TBAB) and ultrasound (kapp = 25.22×10-3 min-1) shows several fold enhanced rate of the reaction than the conventional operation (kapp = 6.42×10-3 min-1 for TBAB only). The rate constant increases (0.05 to 0.3 g) with increase in the concentration of catalyst (from kapp = 10.12×10-3 min-1 to kapp = 34.46×10-3 min-1). The other kinetic effects such as, effect of agitation speed, kind of frequency of ultrasound, kind of various quantity of K2CO3, quantity of water, temperature, different quaternary ammonium salts, solvents and volume of organic solvents on the conversion of ethyl 2-bromoacetate and apparent rate constant were investigated in detail and rational explanations are provided.

One-Pot Synthesis of Bi/Fe3O4 and Its Catalytic Performances for 4-Nitrophenol Reduction Ke-ying Cai; Yu-Sheng Liu; Yang Xu; Huimin Zhou; Lingxia Zhang; Yao Cui
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 1 Year 2017 (April 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

A novel approach was successfully developed for the catalyst Bi-deposited Fe3O4 magnetic nanoparticles, which was used in the degradation of 4-nitrophenol (4-NP). The Bi/Fe3O4 composite was prepared via a one-pot process from ferrous sulfate and bismuth chloride using hydrazine hydrate as a reducing agent. The catalyst was characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. In the composite pure Fe3O4 particles were synthesized and bismuth particles were well dispersed. The catalytic performances were investigated for the reduction of 4-NP with sodium borohydride. The catalyst has higher activity when Bi/Fe molar ratio is 1:4 in the composite and the rate constant k is about 0.611 min-1. The catalyst has good reusability which can be used 10 cycles without obvious deactivation. Furthermore, the catalyst can be easily separated by an external magnetic field.

Production of CO-rich Hydrogen Gas from Methane Dry Reforming over Co/CeO2 Catalyst Bamidele V. Ayodele; Maksudur R. Khan; Chin Kui Cheng
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 2 Year 2016 (August 2016)
Publisher : Department of Chemical Engineering - Diponegoro University

Production of CO-rich hydrogen gas from methane dry reforming was investigated over CeO2-supported Co catalyst. The catalyst was synthesized by wet impregnation and subsequently characterized by field emission scanning electron microscope (FESEM), energy dispersion X-ray spectroscopy (EDX), liquid N2 adsorption-desorption, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) for the structure, surface and thermal properties. The catalytic activity test of the Co/CeO2 was investigated between 923-1023 K under reaction conditions in a stainless steel fixed bed reactor. The composition of the products (CO2 and H2) from the methane dry reforming reaction was measured by gas chromatography (GC) coupled with thermal conductivity detector (TCD). The effects of feed ratios and reaction temperatures were investigated on the catalytic activity toward product selectivity, yield, and syngas ratio. Significantly, the selectivity and yield of both H2 and CO increases with feed ratio and temperature. However, the catalyst shows higher activity towards CO selectivity. The highest H2 and CO selectivity of 19.56% and 20.95% respectively were obtained at 1023 K while the highest yield of 41.98% and 38.05% were recorded for H2 and CO under the same condition.

Modification, Characterization, and Catalytic Application of Mesolite for One Pot Synthesis of 3-Methyl-4-arylmethylene-isoxazol-5(4H)-ones Ganesh Trambakrao Pawar; Sachin Pandit Gadekar; Balasaheb R. Arbad; Machhindra Karbhari Lande
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 1 Year 2017 (April 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.12.1.655.32-40

Natural mesolite type zeolite was collected, modified by sulphuric acid treatment and characterized by using Powder-X ray diffraction, Scanning electron microscopy and Energy dispersive spectroscopy, Fourier transform infrared spectroscopy. Temperature programmed ammonia desorption, Brunauer-Emmer-Teller surface area analysis. Modified dealuminated mesolite shows an efficient catalytic activity for one pot synthesis of 3-methyl-4-arylmethylene-isoxazol-5(4H)-ones derivatives, via one pot three component condensation of benzaldehyde, ethylacetoacetate and hydroxylamine hydrochloride. Present method offers several advantages over the reported methods like a simple and inexpensive modification of catalyst, mild reaction condition, easy separation of catalyst, simple work-up procedure, nonchromatographic isolation and purification desired product and excellent yield. Furthermore, catalyst could be reused without significant loose in activity.

The Composite of ZrO2-TiO2 Produced from Local Zircon Sand Used as A Photocatalyst for The Degradation of Methylene Blue in A Single Batik Dye Wastewater Ita Permadani; Dhini A. Phasa; Andini W. Pratiwi; Fitria Rahmawati
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 2 Year 2016 (August 2016)
Publisher : Department of Chemical Engineering - Diponegoro University

In this research, a composite of ZrO2-TiO2 was used as a photocatalyst in the degradation of dye wastewater. The dye waste water is a single Methylene Blue, MB, wastewater from Batik industry. Meanwhile, the ZrO2 was prepared from zircon sand founded from Bangka Island, Indonesia. The composite was prepared at various weight ratio and heat treated at 500 oC. The result shows that the purity of ZrO2 from zircon sand is only 66.46 %. However, the addition of ZrO2 into TiO2 able to increase the photocatalytic activity proven by 88.75 % degradation of MB at a ZrO2-TiO2 weight ratio of 1:1. The result is higher than the degradation with anatase TiO2; that is only 62.67 %. The kinetics study found that the photocatalytic degradation of MB with single TiO2 has the rate constant of 1.85x10-2 minutes-1. Meanwhile, the rate constant of the MB degradation with the composite ZrO2-TiO2 is 16.73x10-2 minutes-1.

Oligomerization of C2-C4 Hydrocarbons in the Presence of Ruthenium-Nickel Supported Catalysts Raila Toktassyn; B.T. Utelbayev; M. Oberson de Souza; E.N. Suleymenov
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.11.3.495.431-437

The oligomerization of C2-C4 light hydrocarbon gasses in the presence of ruthenium and nickel supported catalysts is investigated. Determined selectivity of the catalysts by isooctane. Catalytic properties of the catalysts depend on the supported metals on the carrier. The nature of carrier also affects on reaction selectivity. The ruthenium-nickel supported bimetallic pillared montmorillonite is showed good selectivity to isooctane and value is about 60.8% at conversion 87.0%.

Kinetic Study of the Catalytic Pyrolysis of Oil-Containing Waste Kirill Chalov; Yury Lugovoy; Yury Kosivtsov; Mikhail Sulman; Esther Sulman; Valentina Matveeva Valentina Matveeva; Antonina Stepacheva
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016)
Publisher : Department of Chemical Engineering - Diponegoro University

Basing on the experimental data the optimal parameters of the pyrolysis of heavy and residual hydrocarbons of oil were defined as follows: temperature of 500 °С; catalyst of CoCl2 with the catalyst loading 5% (wt.) of the substrate weight. Under the optimal conditions the kinetic investigation of the pyrolysis process was carried out using the thermogravimetric method. According to the investigation, it was found that the activation energy of the catalytic pyrolysis of oil-containing waste decreased by 20-30 kJ/mol in comparison to non-catalytic process.

[RETRACTED] Simultaneous Elimination of Soot and NOX through Silver-Barium Based Catalytic Materials Ganesh Chandra Dhal; Subhashish Dey; Ram Prasad; Devendra Mohan
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 1 Year 2017 (April 2017)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

This article was retracted due to the following reasons. Retraction note here: https://doi.org/10.9767/bcrec.12.2.1202.App.7 RETRACTION TO:Dhal, G.C., Dey, S., Prasad, R., Mohan, D. (2017). Simultaneous Elimination of Soot and NOX through Silver-Barium Based Catalytic Materials. Bulletin of Chemical Reaction Engineering & Catalysis, 12 (1): 71-80 (doi:10.9767/bcrec.12.1.647.71-80)This article has been retracted by Publisher based on the following reason:Letter to Editor from Prof. James J. Spivey (Department of Chemical Engineering, Louisiana State University) who reported that a comparison of this paper with a previously paper published in Catalysis Today (258 (2015) 405-415, doi:10.1016/j.cattod.2015.02.024) shows significant duplication according to analysis by iThenticate shows 73% similarity, which is far more than acceptable. The authors have plagiarized part of the paper that had already published in [Catalysis Today (258 (2015) 405-415, doi:10.1016/j.cattod.2015.02.024)]. Based on clarification via email, Authors of the above paper have admitted their plagiarism to the previously published paper by Catalysis Today.Editor of Bulletin of Chemical Reaction Engineering & Catalysis acknowledged Prof. James J. Spivey due to the valuable Letter to Editor.One of the conditions of submission of a paper for publication in this journal is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.

A Straightforward Selective Acylation of Phenols over ZSM-5 towards Making Paracetamol Precursors Robby Roswanda; Alfhons Daniel Sirampun; Rino Rakhmata Mukti; Didin Mujahidin
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 3 Year 2018 (December 2018)
Publisher : Department of Chemical Engineering - Diponegoro University

Commercially available ZSM-5 was minimally treated as the catalyst to selectively acylate phenols. The ZSM-5 was simply immersed in ammonium nitrate in order to fill the pores with Brönsted acid to concentrate the catalytic reactions inside the pores. The reactions were carried out in liquid phase at 383 K. Acetic acid and propionic acid were chosen as the acyl substrate. Gas chromatography reveals two products which are phenyl acetate and almost exclusively para-hydroxyacetophenone meaning no ortho product observed. This para selectivity can be attributed to the pores of ZSM-5 where the reaction is assumed to be happening via intermolecular reaction. It is a relatively straightforward method in making para-hydroxyacetophenone which is known as paracetamol precursor.

Green Biofuel Production via Catalytic Pyrolysis of Waste Cooking Oil using Malaysian Dolomite Catalyst Raja Mohamad Hafriz Raja Shahruzzaman; Salmiaton Ali; Robiah Yunus; Taufiq Yap Yun-Hin
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 3 Year 2018 (December 2018)
Publisher : Department of Chemical Engineering - Diponegoro University

Malaysian Dolomite has shown potential deoxygenation catalyst due to high capacity in removing oxygen compound and produce high quality of biofuel with desirable lighter hydrocarbon (C8-C24). The performance of this catalyst was compared with several commercial catalysts in catalytic pyrolysis of Waste Cooking Oil. Calcination at 900 °C in N2 produced catalyst with very high activity due to decomposition of CaMg(CO3)2 phase and formation of MgO-CaO phase. The liquid product showed similar chemical composition of biofuel in the range of gasoline, kerosene and diesel fuel. Furthermore, Malaysian Dolomite showed high reactivity with 76.51 % in total liquid hydrocarbon and the ability to convert the oxygenated compounds into CO2, CO, CH4, H2, hydrocarbon fuel gas, and H2O. Moreover, low acid value (33 mg KOH/g) and low aromatic hydrocarbon content were obtained in the biofuel. Thus, local calcined carbonated material has a potential to act as catalyst in converting waste cooking oil into biofuel.

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