Results 241 to 250 of about 902,249 (287)

Supercritical CO2-assisted electrospinning

The Journal of Supercritical Fluids, 2004
Polymer fibers of high molecular weight polydimethylsiloxane (PDMS) and poly (d,l-lactic acid) (PLA) were produced using only electrostatic forces and without the use of a liquid solvent. The fibers were formed between two electrodes in a high-pressure view cell.
Natalia Levit, Gary Tepper
openaire   +1 more source

Supercritical CO2 fractionation of jasmine concrete

The Journal of Supercritical Fluids, 1995
Abstract Jasmine fragrance is usually produced by hexane extraction. The extraction product called a “concrete,” undergoes further processing to separate fragrance compounds from undesired coextractives such as paraffins and fatty acid methyl esters. This study reports supercritical CO 2 fractionation of jasmine concrete to avoid thermal degradation
REVERCHON, Ernesto, DELLA PORTA, Giovanna, Gorgoglione D.   +2 more
openaire   +2 more sources

Materials Performance in CO2 and Supercritical CO2

2020
Past and current gas-cooled nuclear reactors rely on CO2-rich gases as a coolant to transfer heat from the reactor core, while future reactors may utilize a supercritical CO2 Brayton cycle for power production. The alloys used to construct these systems can experience serious corrosion issues induced by CO2 in the high temperature portions of the ...
Oleksak, Richard, Rouillard, Fabien
openaire   +2 more sources

Rose concrete fractionation by supercritical CO2

The Journal of Supercritical Fluids, 1996
Abstract Supercritical CO2 extraction was used to post-process a solid rose extract produced by liquid solvent extraction. Single step supercritical extraction at 80 bar, 40 °C, and a two-stage separation procedure at 80 bar and −16 °C and at 15 bar and 0 °C, were the optimum process conditions to produce a volatile rose oil with an overall 2-phenyl ...
REVERCHON, Ernesto, DELLA PORTA, Giovanna   +1 more
openaire   +2 more sources

A comprehensive review of metal corrosion in a supercritical CO2 environment

International Journal of Greenhouse Gas Control, 2019
Carbon capture and storage (CCS) is the most effective way to reduce CO2 emissions. In CCS, CO2 transportation plays an important role for the transmission of CO2 from the capturing facility to the location of permanent storage.
Gan Cui, Ziqing Yang, Jianguo Liu, Zili Li   +3 more
semanticscholar   +1 more source

Viability Assessment of a Concentrated Solar Power Tower With a Supercritical CO2 Brayton Cycle Power Plant

Journal of solar energy engineering, 2019
The aim of this study was to conduct thermodynamic and economic analyses of a concentrated solar power (CSP) plant to drive a supercritical CO2 recompression Brayton cycle.
Ali Sulaiman Alsagri, A. Chiasson, M. Gadalla   +2 more
semanticscholar   +1 more source

Changes in Pore Structure of Dry-hot Rock with Supercritical CO2 Treatment

, 2020
Using supercritical CO2 as a fracturing or heat exchange medium can not only improve the thermal recovery efficiency of geothermal energy but can also store CO2 and reduce CO2 emissions.
Honglian Li, Lei Zhou, Yiyu Lu, Fazhi Yan, Jiankun Zhou, Jiren Tang   +5 more
semanticscholar   +1 more source

Corrosion Testing in Supercritical CO2

CORROSION 2020, 2020
Abstract Carbon capture and storage or carbon capture and utilisation (CCS or CCU) are being considered in order to facilitate the extended use of both fossil-fuel power stations and high carbon dioxide (CO2) emitting industrial facilities such as steel, cement and petrochemical plants.
David Smyth-Boyle, Shiladitya Paul
openaire   +1 more source

Numerical analysis of heat mining and geological carbon sequestration in supercritical CO2 circulating enhanced geothermal systems inlayed with complex discrete fracture networks

Energy, 2019
Enhanced geothermal systems using supercritical CO2 (scCO2-EGS) as working fluid in place of water provides better heat extraction rate and sequestrates CO2 in the formations for reducing atmospheric CO2 content and the greenhouse effect.
Yang Wang, Tuo Li, Yun Chen, G. Ma
semanticscholar   +1 more source

Evaluation of the effects of temperature and pressure on the extraction of eugenol from clove (Syzygium aromaticum) leaves using supercritical CO2

Journal of Supercritical Fluids, 2019
In this study, the effect of operational conditions on the extraction of clove leaves using CO2 on eugenol yield and content was investigated. The conditions used in the supercritical extraction with CO2 included temperatures of 40, 50, and 60 °C and ...
Paula Cassiana Frohlich, Kátia Andressa Santos, F. Palú, L. Cardozo-Filho, C. Silva, E. A. Silva   +5 more
semanticscholar   +1 more source