Results 21 to 30 of about 77,758 (332)

Influences of supercritical carbon dioxide fluid on pore morphology of various rank coals: A review

open access: yesEnergy Exploration & Exploitation, 2020
Supercritical carbon dioxide is known to change the pore structure of coals and thus affect their carbon dioxide sequestration capacity. In this study, supercritical carbon dioxide dependence of pore morphology of coals was reviewed.
Zichao Hu   +3 more
doaj   +1 more source

Experimental study on supercritical carbon dioxide gasification of biomass

open access: yesCarbon Neutrality, 2023
With the excessive use of fossil energy and concern for environmental protection, biomass gasification as an effective means of biomass energy utilization has received widespread attention worldwide. Supercritical carbon dioxide (SCCO2) (T ≥ 31.26 °C, P ≥
Chenchen Zhou   +4 more
doaj   +1 more source

A full three‐dimensional fracture propagation model for supercritical carbon dioxide fracturing

open access: yesEnergy Science & Engineering, 2020
Supercritical carbon dioxide fracturing is an environmentally friendly anhydrous method. To study the propagation process during supercritical carbon dioxide fracturing, a full three‐dimensional model, coupled rock deformation, fluid transport, heat ...
Yuting He   +5 more
doaj   +1 more source

Organosilicone Compounds in Supercritical Carbon Dioxide

open access: yesPolymers, 2022
This review considers the key advantages of using supercritical carbon dioxide as a solvent for systems with organosilicon compounds. Organosilicon polymeric materials synthesis as well as the creation and modification of composites based on them are discussed.
Victor E. Sizov   +3 more
openaire   +2 more sources

Numerical simulation of the cutting-carrying ability of supercritical carbon dioxide drilling at horizontal section

open access: yesPetroleum Exploration and Development, 2011
The density of supercritical carbon dioxide is relatively heavy, close to liquid density; its viscosity is small and close to gas viscosity. In order to research the cutting-carrying ability of supercritical carbon dioxide drilling in horizontal section,
Zhonghou Shen, Haizhu Wang, Gensheng Li
doaj   +1 more source

Carbon Dioxide, a Solvent and Synthon for Green Chemistry [PDF]

open access: yes, 2005
Carbon dioxide is a renewable resource of carbon when we consider the reuse of existing CO2 as a carbon source for producing chemicals. The development of new applications is of major interest from the point of view of carbon dioxide sequestration and ...
Ballivet-Tkatchenko, D   +2 more
core   +1 more source

Subcritical liquified dimethyl ether and supercritical fluid carbon dioxide extraction of gamma oryzanol from rice bran acid oil

open access: yesJournal of Agriculture and Food Research, 2023
Gamma oryzanol (γ-oryzanol) is a bioactive compound in rice bran acid oil, a by-product of the rice bran oil refining process that possesses various pharmacological properties.
Sudthida Kamchonemenukool   +3 more
doaj   +1 more source

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

open access: yes, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine   +2 more
core   +3 more sources

Glycerol as a cheap, safe and sustainable solvent for the catalytic and regioselective β,β-diarylation of acrylates over palladium nanoparticles [PDF]

open access: yes, 2010
Herein we show that glycerol can be considered as a promising cheap and green solvent for the regioselective β,β-diarylation of alkenes. Whereas this reaction is generally catalyzed under an inert atmosphere by expensive phosphine or carbene-palladium ...
Barrault, Joel   +7 more
core   +2 more sources

Review of experimental research on supercritical and transcritical thermodynamic cycles designed for heat recovery application [PDF]

open access: yes, 2019
Supercritical operation is considered a main technique to achieve higher cycle efficiency in various thermodynamic systems. The present paper is a review of experimental investigations on supercritical operation considering both heat-to-upgraded heat and
De Paepe, Michel   +6 more
core   +2 more sources

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