Results 71 to 80 of about 902,249 (287)

Effect of supercritical CO2 on pore structure and desorption characteristics of tectonic coal

open access: yesMeikuang Anquan
In order to analyze the influence of supercritical CO2 on pore structure and desorption characteristics of tectonic coal, a high-temperature and high-pressure geological environment simulation system was used to treat primary coal and tectonic coal with ...
Fanfan NIU   +3 more
doaj   +1 more source

Study on the mechanism of CO2 injection to improve tight sandstone gas recovery

open access: yesEnergy Reports, 2023
Supercritical CO2 can improve gas recovery and achieve carbon sequestration in tight gas reservoir. It is a hot topic but not applied extensively. The main restricts include the unclear mechanism of gas-to-gas displacement and the reduction of the ...
Haiying Liao   +4 more
doaj   +1 more source

Experimental investigation of the mechanism of supercritical CO2 interaction with tight sandstone

open access: yesFrontiers in Energy Research, 2022
One of the important technologies for combating global climate change is CCUS (Carbon Capture, Utilization, and Storage), which aims to address the issue of “greenhouse effect” generated by a significant amount of greenhouse gas emissions.
Huan Peng   +10 more
doaj   +1 more source

Displacement dewatering of sludge with supercritical CO2

open access: yesWater 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   +3 more
openaire   +3 more sources

Research progress on theory and simulation of supercritical CO2 pipeline transportation

open access: yesYou-qi chuyun
ObjectiveWith the ongoing development of carbon capture, utilization, and storage (CCUS) technology, researching supercritical CO2 pipeline transportation technology has become essential. Enhancing the fundamental theoretical system for supercritical CO2
Meng LI   +7 more
doaj   +1 more source

A preliminary assessment of the initial compression power requirement in CO2 pipeline “Carbon Capture and Storage (CCS) technologies" [PDF]

open access: yes, 2016
CO2 captured from fossil-fueled power generation plants is said to be economically transported via pipelines over long distances. The CO2 must be compressed to pipeline specifications using compressors and pumps that are driven by gas turbine (GT) or ...
Anosike, Nnamdi Benedict   +2 more
core   +3 more sources

Supercritical CO2 fracking for enhanced shale gas recovery and CO2 sequestration: results, status and future challenges

open access: yesAdvances in Geo-Energy Research, 2019
Supercritical carbon dioxide(ScCO 2 )-based fracturing technology associating with CO 2 enhanced shale gas recovery is a promising technology to reduce the water consumption of shale gas production and could provide the potential for CO 2 sequestration ...
Junping Zhou   +6 more
semanticscholar   +1 more source

Electrochemical determination of ferrocene diffusion coefficient in liquid media under high CO2 pressure: Application to DMF–CO2 mixtures [PDF]

open access: yes, 2007
Electrochemical method can be useful for the determination of diffusion coefficients in various media. For low polarity media, ultramicroelectrodes are preferably used.
Camy, Séverine   +3 more
core   +2 more sources

Experimental study of microstructure and mechanical properties-acoustic emission characterization of high-rank coal under supercritical CO2 action

open access: yesMeitan kexue jishu
The supercritical CO2 fracturing technology has significant potential for developing coal fracture and increasing gas permeability. Understanding its influence mechanism on coal is crucial for advancing research and practical engineering applications of ...
Jiajia LIU   +5 more
doaj   +1 more source

Experimental investigation of a forced convection heat transfer of the organic fluid R-125 at supercritical pressures and under organic rankine cycle conditions [PDF]

open access: yes, 2017
The organic Rankine cycle (ORC) is a suitable technology for utilizing low-grade temperature heat sources of ~100 °C from various industry processes. In the ORC cycle an organic fluid with a lower boiling point is used as a working medium.
Billiet, Marijn   +4 more
core   +1 more source

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