Results 121 to 130 of about 1,323,436 (284)

Numerical investigation of natural fracture activation and leakage risk during CO2 sequestration in depleted sandstone reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates the hydro‐mechanical response and fracture evolution in depleted sandstone reservoirs during CO2 injection, considering both direct wellbore injection and hydraulic‐fracture‐assisted injection. The graphical abstract illustrates how CO2 injection induces dynamic stress redistribution, leading to natural fracture activation ...
Haiyang Wang   +6 more
wiley   +1 more source

Mathematical modeling of supercritical fluid extraction for obtaining extracts from vetiver root

open access: yes, 2015
Mathematical modeling study for extraction of oil from vetiver root using supercritical carbon dioxide was performed in this study. Mass transfer is based on local equilibrium between solvent and solid.
Hatami, T, Melreles, MAA, Zahedi, G
core   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

open access: yesEcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin   +9 more
wiley   +1 more source

Analysis of Adaptability and Application Potential of Supercritical Multi-Source Multi-Component Thermal Fluid Technology for Offshore Heavy Oil in China

open access: yesApplied Sciences
Supercritical multi-source, multi-component thermal fluid is a heavy oil thermal recovery method independently developed by China National Offshore Oil Co., Ltd (Beijing, China).
Yan Sun   +6 more
doaj   +1 more source

A Control Strategy With Hybrid Compressor Modeling for Electric Vehicle CO2 Heat Pump Systems

open access: yesEnergy Science &Engineering, EarlyView.
A hybrid PSO‐BP compressor sub‐model is developed and embedded in a MATLAB/Simscape physical model of a transcritical CO2 heat pump system for electric vehicles. Based on this high‐fidelity platform, a phased variable‐PTC cooperative control strategy is proposed and evaluated.
Jiaqi Dong   +5 more
wiley   +1 more source

Micro–Macro Performance Response Characteristics of Reservoirs in Water‐Bearing Coal Seams After Supercritical CO2 Injection

open access: yesEnergy Science &Engineering, EarlyView.
1. The synergistic effects of carbonate mineral dissolution, coal matrix drying/shrinkage, and supercritical CO2 (ScCO2)‐induced organic matter extraction collectively enhance pore/fracture connectivity, thereby significantly improving permeability. 2.
Junwen Zhou, Enguang Han
wiley   +1 more source

Solubility of Cholesterol in Supercritical Carbon Dioxide

open access: yes, 2004
Supercritical fluid (SCF) extraction offers a good alternative to the current methods of extraction that normally involve the use of organic solvents. To perform this technique it is very important to know the solubility of the drug in the supercritical ...
ALESSI, PAOLO   +3 more
core  

Mango Seed Valorization: Sustainable Source of Nutrients, Bioactives, and Value‐Added Applications

open access: yesFood Chemistry International, EarlyView.
Highlighting mango seed as a valuable yet overlooked by‐product, promoting its utilization and reducing agroindustrial waste. ABSTRACT Mango (Mangifera indica L.) is one of the most widely cultivated tropical fruits, generating large quantities of by‐products during processing, with mango seed representing 20%–25% of the whole fruit weight ...
Priyanka Yadav   +3 more
wiley   +1 more source

Optimisation of Supercritical Fluid Extraction for Fatty Acids from Benincasa hispida Seed Oil: A Response Surface Approach

open access: yesJournal of Pharmacy
Introduction: The goal of this study was the optimisation of the process parameters for the extraction of Benincasa hispida seed extract using the supercritical carbon dioxide.
Rizal Za’im Ramli   +2 more
doaj  

Composition and Injection Rate Co-Optimization Method of Supercritical Multicomponent Thermal Fluid Used for Offshore Heavy Oil Thermal Recovery

open access: yesEnergies
Supercritical multicomponent thermal fluid injection is a new technology with great potential for offshore heavy oil thermal recovery. In the process of thermal fluid generation, the reaction conditions including temperature, pressure, and the organic ...
Shenyao Yang   +5 more
doaj   +1 more source

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