Articles with "supercritical ethanol" as a keyword



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A new role of supercritical ethanol in macroalgae liquefaction (Saccharina japonica): Understanding ethanol participation, yield, and energy efficiency

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Published in 2017 at "Energy"

DOI: 10.1016/j.energy.2016.12.016

Abstract: Liquefaction of macroalgae was performed in a stirred autoclave reactor using supercritical ethanol (scEtOH) as a solvent. There was a sharp transition in ethanol consumption during macroalgae liquefaction in scEtOH when the temperature was increased… read more here.

Keywords: energy; macroalgae liquefaction; liquefaction; supercritical ethanol ... See more keywords
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Excellent aging stability of upgraded fast pyrolysis bio-oil in supercritical ethanol

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Published in 2018 at "Fuel"

DOI: 10.1016/j.fuel.2018.06.005

Abstract: Abstract The stabilities of low-boiling-fraction fast pyrolysis bio-oil (LBFBO) and upgraded bio-oil (UBO) produced using supercritical ethanol (scEtOH) were examined under accelerated aging conditions at 80 °C for up to 1 year. During the 3-month aging of… read more here.

Keywords: fast pyrolysis; pyrolysis bio; supercritical ethanol; excellent aging ... See more keywords
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Efficient upgrading of pyrolysis bio-oil over Ni-based catalysts in supercritical ethanol

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Published in 2019 at "Fuel"

DOI: 10.1016/j.fuel.2018.12.025

Abstract: Abstract An efficient method to upgrade bio-oil derived from fast pyrolysis of woody biomass was investigated in supercritical ethanol without external hydrogen supply. A set of Ni-based catalysts (Ni, Ni-Mo, and Mg-Ni-Mo) supported on activated… read more here.

Keywords: bio oil; based catalysts; oil; supercritical ethanol ... See more keywords
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Understanding the formation of phenolic monomers during fractionation of birch wood under supercritical ethanol over iron based catalysts

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Published in 2020 at "Journal of The Energy Institute"

DOI: 10.1016/j.joei.2020.05.001

Abstract: Abstract The liquefaction of biomass in ethanol, at the critical point, has high potential due to low temperature and pressure (243 °C, 63 bar) when compared with water (374 °C, 220 bar). The current study deals with the fractionation… read more here.

Keywords: supercritical ethanol; birch wood; fractionation birch;
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Depolymerization of Protobind lignin to produce monoaromatic compounds over Cu/ZSM-5 catalyst in supercritical ethanol

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Published in 2017 at "Molecular Catalysis"

DOI: 10.1016/j.mcat.2017.09.010

Abstract: Abstract The depolymerization reaction of Protobind lignin (PL) was conducted over metal supported on ZSM-5 catalysts in supercritical ethanol without supplying additional hydrogen in order to obtain the high yield of monoaromatic compounds. The reaction… read more here.

Keywords: depolymerization; yield monoaromatic; protobind lignin; monoaromatic compounds ... See more keywords
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Effect of TEMPO and characterization of bio-oil from cellulose liquefaction in supercritical ethanol

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Published in 2020 at "Renewable Energy"

DOI: 10.1016/j.renene.2019.07.098

Abstract: Abstract Cellulose liquefaction in supercritical ethanol with 2,2,6,6-Tetramethylpiperidinooxy (TEMPO) was carried out in a stainless autoclave. The influence of process parameters on bio-oil (BO) and platform chemicals, mainly including the dosage of TEMPO, reaction temperature… read more here.

Keywords: bio oil; supercritical ethanol; cellulose liquefaction; liquefaction supercritical ... See more keywords
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Esterification of fatty acids with supercritical ethanol in a continuous tubular reactor

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Published in 2017 at "Journal of Supercritical Fluids"

DOI: 10.1016/j.supflu.2017.03.002

Abstract: Abstract This work reports on the esterification kinetics of carboxylic acids of different chain lengths (valeric, caprylic, lauric and oleic acids) and an industrial mixture of distillate fatty acids (MDFA) using supercritical ethanol. The kinetic… read more here.

Keywords: fatty acids; esterification fatty; supercritical ethanol; acids supercritical ... See more keywords
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Lignin-First Approach to Biorefining: Utilizing Fenton’s Reagent and Supercritical Ethanol for the Production of Phenolics and Sugars

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Published in 2018 at "ACS Sustainable Chemistry & Engineering"

DOI: 10.1021/acssuschemeng.7b04500

Abstract: Selective lignin depolymerization (SLD) has emerged as a value-added method of pretreatment for lignocellulosic biorefining, in which lignin is depolymerized into valuable phenolic monomers prior to utilization of the hemicellulose and cellulose. Herein, we report… read more here.

Keywords: fenton reagent; supercritical ethanol; fenton; phenolic monomers ... See more keywords
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LIQUEFACTION OF OIL SHALE IN SUPERCRITICAL ETHANOL

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Published in 2018 at "Oil Shale"

DOI: 10.3176/oil.2018.3.07

Abstract: Oil shale was liquefied in supercritical ethanol in an autoclave. The effects of reaction temperature and residence time on the liquefaction of oil shale were studied. The optimum conditions for liquefaction were 360 °C and… read more here.

Keywords: oil shale; liquefaction oil; supercritical ethanol; oil ... See more keywords
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Supercritical ethanol and isopropanol conversion into chemicals over Au-M catalysts

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Published in 2017 at "Chemical engineering transactions"

DOI: 10.3303/cet1757006

Abstract: Supercritical Ethanol and Isopropanol Conversion into Chemicals over Au-M Catalysts Polina A. Zharova, Andrey V. Chistyakov, Mark V. Tsodikov, Sergey A. Nikolaev, Francesco Rossi, Flavio Manenti Topchiev Institute of Petrochemical Synthesis RAS, Leninskii pr. 29,… read more here.

Keywords: chemicals catalysts; conversion chemicals; supercritical ethanol; ethanol isopropanol ... See more keywords