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Daily Archives: December 21, 2017
Kinetic study of glucose conversion to levulinic acid over Fe/HY zeolite catalyst
ABSTRACT: The glucose conversion using Fe/HY zeolite catalyst in a batch reactor has been investigated. The main products within the temperature range between 120 and 200 C were 5-hydroxymethylfurfural (5-HMF) and levulinic acid (LA). The highest LA yield of 66% … Continue reading
Posted in 2016
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Photocatalytic conversion and kinetic study of CO2 and CH4 over nitrogen-doped titania nanotube arrays
ABSTRACT: The performance of highly ordered nitrogen-doped titania (TiO2) nanotube arrays, fabricated by anodization method, was tested for photocatalytic CO2 conversion with CH4. Nitrogen-doped titania nanotube arrays were characterized using field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), transmission electron … Continue reading
Posted in 2016
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Recovery of ionized nanosilver by emulsion liquid membrane process and parameters optimization using response surface methodology
ABSTRACT: The discharge of silver ions from nanosilver-based product into the environment has raised the ecological and human health concern due to the toxicity of silver ion, particularly on the release behaviour of ionized nanosilver from the wastage. Therefore, recovery … Continue reading
Posted in 2016
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Characteristics of oil palm shell biochar and activated carbon prepared at different carbonization times
Abstract: Palm shells, which are agricultural by-products from palm oil processing, were used to produce low-cost activated carbons. Effect of different carbonization times (1–4 h) on the biochar and activated carbon properties was investigated. The carbonization was carried out at 700°C … Continue reading
Posted in 2016
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A review on removal of pharmaceuticals from water by adsorption
ABSTRACT: Pharmaceuticals and personal care products are recognized as emerging pollutants in water resources. Various treatment options have been investigated for the removal of pharmaceuticals that include both conventional (e.g., biodegradation, adsorption, activated sludge) and advanced (e.g., membrane, microfiltration, ozonation) … Continue reading
Posted in 2016
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Kinetics study of the photocatalytic inactivation of Escherichia coli
ABSTRACT: Photocatalysis is a promising method for the disinfection of potable water in developing countries. Water treatment using nanocrystalline titanium dioxide photocatalytic oxidation is a well-known, enhanced and advanced oxidation process for environmental remediation. In this article, the bactericidal properties … Continue reading
Posted in 2016
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Reduction of CO2 emission by INCAM model in Malaysia biomass power plants during the year 2016
Abstract : As the world’s second-largest palm oil producer and exporter, Malaysia could capitalize on its oil palm biomass waste for power generation. The emission factors from this renewable energy source are far lower than those from fossil fuels. This … Continue reading
Posted in 2017
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Thermo-kinetic assessment of glucose decomposition to 5-hydroxymethyl furfural and levulinic acid over acidic functionalized ionic liquid
Abstract: Decomposition of biomass feedstock is a promising technique for producing versatile chemicals such as 5-hydroxymethyl furfural (5-HMF) and levulinic acid (LA). Glucose, the model compound of cellulose, is one of the most important starting components for bio-based chemical synthesis. … Continue reading
Posted in 2017
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Thermo-kinetic and diffusion studies of glycerol dehydration to acrolein using HSiW-γ-Al2O3 supported ZrO2 solid acid catalyst.
Abstract: The thermo-kinetic study of gas-phase glycerol dehydration reaction using a supported g-Al2O3 nanoparticle based solid catalyst (SiW20-Al/Zr10) has been investigated. The kinetic model was established based on the reaction mechanism, taking into account two parallel reactions of glycerol degradation … Continue reading
Posted in Other
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Effects of thermal treatment on carbon cryogel preparation for catalytic esterification of levulinic acid to ethyl levulinate
Abstract: Organic catalyst, especially derived from lignocellulosic biomass, is currently being developed for application in reaction engineering. Lignin, a major constituent in biomass, is highly potential as carbon- based -derived catalyst. Carbon cryogel was prepared from acidic lignin-furfural mixtures via … Continue reading
Posted in 2017
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