Results 11 to 20 of about 5,336,875 (295)
Proton dynamics in supercritical water [PDF]
The Journal of Chemical Physics, 2001 An inelastic neutron scattering experiment has been performed on supercritical water at high momentum transfer, up to 90 Å−1, in order to study single proton dynamics. The value of the proton mean kinetic energy has been extracted in the framework of the impulse approximation.
ANDREANI, CARLA +3 more
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Bond cleavage of lignin model compounds into aromatic monomers using supported metal catalysts in supercritical water [PDF]
, 2021 More efficient use of lignin carbon is necessary for carbon-efficient utilization of lignocellulosic biomass. Conversion of lignin into valuable aromatic compounds requires the cleavage of C–O ether bonds and C–C bonds between lignin monomer units.
SATO, Osamu +3 more
core +2 more sources
A closer look at supercritical water [PDF]
Proceedings of the National Academy of Sciences, 2013 Water, the fluid of life at ambient pressure (P) and temperature (T), is mostly present under supercritical conditions in the Earth’s crust and mantle (1): that is, above the vapor-liquid critical point (647 K and 221 MPa). As a free fluid or dissolved in silicate minerals, supercritical water greatly influences the structure and dynamics of our planet.
Galli, Giulia A., Pan, Ding
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Machines, 2023 Supercritical water fluidized beds (SCWFBs) are promising and efficient reactors for the gasification of coal in supercritical water. The understanding and investigation of multi-phase flows as well as the gasification process usually rely on time ...
Pu Zhao +7 more
doaj +1 more source
Catalytic supercritical water oxidation of nitrogen-containing organic compounds [PDF]
, 2010 The results of the catalytic oxidation in supercritical water of two non-biodegradable and highly toxic nitrogen-containing organic compounds (DBU and quinoline) are presented. The reactions were studied in a tubular xed-bed reactor over three catalysts:
Hernandes, Mauricio Julio Angeles
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Fluid phase equilibria of the reacting mixture in the dimethyl carbonate synthesis from supercritical CO2 [PDF]
, 2003 In order to investigate the dimethyl carbonate synthesis from methanol and supercritical CO2, the thermodynamic behaviour of the reacting mixture, i.e. the quaternary methanol/CO2/DMC/water mixture, has to be known.
Pic, Jean-Stéphane +3 more
core +1 more source
AIP Advances, 2018 To improve fuel use and energy-conversion efficiency and reduce the emission of pollutants, oxygenation is now deemed an effective chemical treatment of water in supercritical and ultra-supercritical power plants.
Caili Zhang +7 more
doaj +1 more source
Experimental studies of the influence of temperature on the process of polystyrene processing in a supercritical water environment [PDF]
EPJ Web of ConferencesThis paper discusses a hydrothermal method for processing polystyrene in a supercritical water environment. This depolymerization process is carried out in a closed reactor where water serves as a solvent, catalyst and reactant.
Gilmutdinov Ilnur
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Continuous Synthesis of Nanominerals in Supercritical Water [PDF]
Chemistry – A European Journal, 2019 AbstractThe synthesis of minerals should play a crucial role in the development of new and advanced materials. Since 2016, a renewal of interest to enlarge the mineral synthesis towards industrial requirements has been observed, especially thanks to three main recent papers.
Claverie, Marie +3 more
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Extraction of rosavin from Rhodiola rosea root using supercritical carbon dioxide with water
, 2009 In this study, a new extraction method for the isolation of rosavin from dried crushed roots of Rhodiola rosea is being developed using supercritical CO2 and water. Rosavin extracts quantitatively and qualitatively were compared to commonly used solvents
Dey, Estera, +2 more
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