Results 1 to 10 of about 100,902 (203)

Liquid-like behavior of supercritical fluids [PDF]

open access: yesPhysical Review Letters, 2006
The high frequency dynamics of fluid oxygen have been investigated by Inelastic X-ray Scattering. In spite of the markedly supercritical conditions ($T\approx 2 T_c$, $P>10^2 P_c$), the sound velocity exceeds the hydrodynamic value of about 20%, a ...
E. Burkel   +8 more
core   +4 more sources

Production of solid fuels by hydrothermal treatment of wastes of biomass, plastic, and biomass/plastic mixtures: A review

open access: yesJournal of Bioresources and Bioproducts, 2022
Traditional disposal methods of biomass and plastic waste, such as landfill, combustion, and compost, no longer meet the requirements of carbon reduction, carbon neutrality, and sustainable society due to low utilization efficiency and severe pollution ...
Qingxin Zheng   +2 more
doaj   +1 more source

Advances in low-temperature extraction of natural resources using liquefied dimethyl ether

open access: yesResources Chemicals and Materials, 2022
This review summarized the valuable works on the extraction technologies using pure liquefied dimethyl ether (DME) as the organic solvent. DME is a colorless gas with a slight ether-like fragrance at room temperature and pressure.
Qingxin Zheng, Masaru Watanabe
doaj   +1 more source

A Study on Generation and Feasibility of Supercritical Multi-Thermal Fluid

open access: yesEnergies, 2022
Supercritical multi-thermal fluid is an emerging and efficient heat carrier for thermal recovery of heavy oil, but the generation of supercritical multi-thermal fluid and its feasibility in thermal recovery are rarely discussed. In this paper, generation
Xiaoxu Tang   +4 more
doaj   +1 more source

Highly crystalline graphite-like carbon from wood via low-temperature catalytic graphitization

open access: yesCarbon Trends, 2022
In this study, we investigated the synthesis of wood-sawdust-derived high-crystalline graphite-like carbon. The sawdust was first impregnated with Fe and semi-carbonized by a hydrothermal treatment (HT) at 250°C, followed by the second carbonization ...
Yuta Nakayasu   +4 more
doaj   +1 more source

Series module of quinone-based organic supercapacitor (> 6 V) with practical cell structure

open access: yesScientific Reports, 2022
Inexpensive, high-performing, and environmentally friendly energy storage devices are required for smart grids that efficiently utilize renewable energy.
Yuto Katsuyama   +8 more
doaj   +1 more source

Application progress of supercritical fluid chromatography in food quality and safety

open access: yesShipin yu jixie, 2023
Modern supercritical fluid chromatography technology has better stability and robustness, which can be coupled with mass spectrometry. Supercritical fluid chromatography has the characteristics of high selectivity, high sensitivity and short consumption ...
XING Qianqian
doaj   +1 more source

Electrochemistry in supercritical fluids [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
A wide range of supercritical fluids (SCFs) have been studied as solvents for electrochemistry with carbon dioxide and hydrofluorocarbons (HFCs) being the most extensively studied. Recent advances have shown that it is possible to get well-resolved voltammetry in SCFs by suitable choice of the conditions and the electrolyte.
Jack A. Branch, Philip N. Bartlett
openaire   +4 more sources

Cyclic Supercritical Multi-Thermal Fluid Stimulation Process: A Novel Improved-Oil-Recovery Technique for Offshore Heavy Oil Reservoir

open access: yesEnergies, 2022
Cyclic supercritical multi-thermal fluid stimulation (CSMTFS) is a novel technology that can efficiently recover heavy oil, while the heating effect, production and heat loss characteristics of CSMTFS have not been discussed.
Jie Tian   +5 more
doaj   +1 more source

Study on the Phenolic Compounds and Antioxidant Activity of Gum Extract of Astragalus fasciculifolius Boiss [PDF]

open access: yesPizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2021
According to consumers trend for using natural conservator compounds, the efforts for finding new herbal resources replaced with synthetic antioxidant has increased.
Najmeh Khademi Pour   +2 more
doaj   +1 more source

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