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Non-equilibrium stratification in supercritical CO₂. [PDF]

Nat Commun
The supercritical state of matter is usually described as a continuous phase without sharp boundaries between liquid and gas regions. However, under non-equilibrium conditions, this view breaks down. Here we report an experimental investigation of non-equilibrium fluctuations in supercritical carbon dioxide (CO2) subjected to a stabilising temperature ...
Fruton P, Lisoir E, Imuetinyan H, Giraudet C, Croccolo F.   +4 more
europepmc   +4 more sources

Experimental study on tensile and shear strength of anthracite under supercritical CO2

Meikuang Anquan, 2022
In the process of CO2 geological sequestration, the mechanical properties of coal will be changed after supercritical CO2 interacts with coal. Based on this, in this paper, Brazilian splitting test and variable angle shear test were carried out on ...
XIAO Chang, WANG Kai, ZHAN Ao, WANG Wenwei   +3 more
doaj   +1 more source

Influence of Supercritical CO2 on the Formation Sensitivity of Tight Sandstone

Frontiers in Energy Research, 2022
It is challenging to get water-based fracture fluid to flow back into low-pressure gas reservoirs. In order to solve the problem, supercritical CO2 is a novel type of non-aqueous fracturing technique with a wide range of applications prospect in low ...
Huan Peng, Huan Peng, Lang Zhou, Jian Yang, Jian Yang, Junliang Peng, Junliang Peng, Huifen Han, Huifen Han, Xinghao Gou, Xinghao Gou, Zhouyang Wang, Zhouyang Wang   +12 more
doaj   +1 more source

Experimental study of the supercritical CO2 diffusion coefficient in porous media under reservoir conditions [PDF]

Royal Society Open Science, 2019
Reliable measurement of the CO2 diffusion coefficient in consolidated oil-saturated porous media is critical for the design and performance of CO2-enhanced oil recovery (EOR) and carbon capture and storage (CCS) projects.
Junchen Lv, Yuan Chi, Changzhong Zhao, Yi Zhang, Hailin Mu   +4 more
doaj   +1 more source

Modeling the Solubility of Ferrocene in Supercritical CO2 via PC-SAFT Using Solubilities Data Measured in Organic Solvents

Journal of Chemical Engineering of Japan, 2023
Developing a modeling method for determining the solubilities of metal complexes in supercritical CO2 is crucial for designing an effective supercritical CO2-based deposition technique.
Ikuo Ushiki, Ryo Fujimitsu, Shigeki Takishima   +2 more
doaj   +1 more source

Enhancement of omega-3 content in sacha inchi seed oil extracted with supercritical carbon dioxide in semi-continuous process

Heliyon, 2022
Sacha inchi seed oil is a promising substance for applications in food, pharmaceutical, and nutraceutical industries because of its valuable components, particularly omega-3.
Sarawut Jitpinit, Chaiyapop Siraworakun, Yanyong Sookklay, Kamchai Nuithitikul   +3 more
doaj   +1 more source

Experimental study on coal seam permeability enhancement and CO2 permeability caused by supercritical CO2

Frontiers in Earth Science, 2023
Permeability is one of the most important parameters for characterizing fluid flow and production from reservoirs. In this paper, experimental studies on the percolation, permeability, and adsorption of supercritical CO2 in coal seams were carried out ...
Yongjiang Yu, Jingjing Liu, Yuntao Yang, Di Wu, Wenbo Zhai, Feng Miao   +5 more
doaj   +1 more source

Displacement dewatering of sludge with supercritical CO2

Water Research, 2021
Supercritical CO2 (sCO2) displaces water from wastewater, alum, and papermill sludge. The sCO2 appears to enter the sludge matrix through viscous fingering through the entrained water. Because the water removed far exceeds the solubility of water in sCO2, it must be displaced by the sCO2 rather than dissolved out.
Osei, Asafu-Adjaye, Brian, Via, Bhima, Sastri, Sujit, Banerjee   +3 more
openaire   +3 more sources

Processing naproxen with supercritical CO2

The Journal of Supercritical Fluids, 2013
El naproxeno se ha procesado con fluidos supercríticos para mejorar la tasa de disolución y la biodisponibilidad. Las micropartículas de naproxeno se han obtenido mediante un proceso de Expansión Rápida de Soluciones Supercríticas (RESS) en el que se ha utilizado dióxido de carbono como solvente y metanol como cosolvente.
Montes Herrera, Antonio, Bendel, A., Kürti, Roland, Gordillo, María Dolores, Pereyra López, Clara María, Martínez de la Ossa Fernández, Enrique José   +5 more
openaire   +2 more sources

Supercritical Carbon Dioxide Turbine Design and Arrangement Optimization

Frontiers in Energy Research, 2022
To achieve a supercritical CO2 cycle power generation system, a 25 MW supercritical CO2 turbine rotor and cylinder were designed. Then, two compact arrangement schemes were proposed in this paper for the optimization of a supercritical CO2 turbine rotor.
Zhenya Li, Wenjie Bian, Li Jiang, Chuanliang Liu, Jinyuan Shi, Ning Hao   +5 more
doaj   +1 more source