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Monthly Archives: December 2017
Oxidative coupling of methane in corona discharge plasma reactor using HY zeolite as catalyst
Abstract: Oxidative coupling of methane in the presence of corona discharge plasma has been studied for the production of higher hydrocarbons under the conditions of ambient temperature and atmospheric pressure. The corona discharge was created by applying 3 kV (DC) between … Continue reading
Posted in 2014
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Immobilized lipase-catalyzed transesterification of Jatropha curcas oil_ Optimization and modeling
Abstract: This study investigates the production of biodiesel from non-edible crude jatropha oil in the presence of an immobilized lipase catalyst. A modified method was used to immobilize Rhizopus oryzae lipase in the polyvinyl alcohol-alginate matrix. Response surface methodology (RSM) … Continue reading
Posted in 2014
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Hydrogenation of CO2 to value-added products—A review and potential future developments
Abstract: Fossil fuel depletion, global warming, climate change, and steep hikes in the price of fuels are driving scientists to investigate on commercial and environmentally friendly fuels. The process of CO2 conversion to value-added products has been considered as a possible … Continue reading
Posted in 2014
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Comparison of Response Surface Methodology and Artificial Neural Network for Optimum Levulinic Acid Production from Glucose, Empty Fruit Bunch and Kenaf
Abstract: Levulinic acid (LA) is one of the versatile chemicals that can be produced from lignocellulosic biomass. In this study, response surface methodology (RSM) and artificial neural network (ANN) were applied to optimise LA yield from glucose, empty fruit bunch … Continue reading
Posted in 2014
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Esterification of oleic acid to biodiesel using magnetic ionic liquid_ Multi-objective optimization and kinetic study.
Abstract: The esterification of oleic acid in the presence of magnetic ionic liquid, 1-butyl-3-methylimidazolium tetrachloroferrate ([BMIM][FeCl4]) at reaction temperature of 65 °C has been investigated. Artificial neural network-genetic algorithm (ANN-GA) was used to simultaneously optimized methyl oleate yield and oleic acid … Continue reading
Posted in 2014
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Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
Abstract: The kinetics of gas-phase glycerol dehydration in a packed-bed reactor over a highly active and stable supported silicotungstic acid catalyst with zirconium oxide and nanosized aluminum oxide (30HZ-20A) was investigated. The kinetic study is based on the optimal reaction … Continue reading
Posted in 2015
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Gold-nanoparticle-modified TiO2 nanowires for plasmon-enhanced photocatalytic CO2 reduction with H2 under visible light irradiation
Abstract: Gold-nanoparticles (Au-NPs) incorporated TiO2-nanowires (TiO2-NWs) of controlled sizes prepared via hydrothermal and chemical reduction method have been investigated for CO2 photoreduction with H2 under visible light irradiations. The nanocatalysts have been characterized by XRD, FESEM, TEM, N2 adsorption–desorption, XPS, UV–vis and PL … Continue reading
Posted in 2015
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Optimization of Oil Palm Fronds Conversion to Levulinic Acid using FeHY Zeolite Catalyst
Abstract: Levulinic acid (LA) is a versatile platform chemical with numerous potential uses. Conversion of oil palm fronds (OPF) to LA over Fe/HY zeolite catalyst has been conducted in this study. The optimization process using Box-Behnken design gave 19.6% of … Continue reading
Posted in 2015
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Theoretical and experimental evaluation of mass transfer limitation in gas phase dehydration of glycerol to acrolein over supported HSiW catalyst
Abstract: Experimental and theoretical studies were performed to evaluate the existence of internal and external mass transfer limitations in the gas phase glycerol dehydration to acrolein over supported HSiW catalyst. In the experimental method, the internal and external diffusions were … Continue reading
Posted in Other
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A new functionalized ionic liquid for efficient glucose conversion to 5-hydroxymethyl furfural and levulinic acid
Abstract: The conversion of glucose to 5-hydroxymethyl furfural (5-HMF) and levulinic acid (LA) using ionic liquid is a promising method for producing liquid fuels from renewable resources. In this study, three types of acidic functionalized ionic liquids (FILs) were prepared … Continue reading
Posted in 2015
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