The Role of Allotropic Forms of Carbon-Based Nanostructures on Asphaltene Stability in Crude Oil Medium: Experimental and Computational Studies

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(35), P. 15466 - 15484

Published: Aug. 22, 2024

Asphaltene precipitation and deposition in various sections of the oil production system pose significant flow assurance challenges, leading to considerable economic implications. Previous studies highlight significance carbon-based nanostructures inhibiting managing asphaltene-related problems petroleum industry. However, impact different allotropic forms on asphaltene formation stability crude has not yet been explored. Here, microscopy dispersant analyses are utilized assess effect oil. Also, density functional theory (DFT) tight binding (DFTB) methods applied describe molecular behavior carbon (CNSs) asphaltene. Treatment with 100 ppm results delay onset from 23 vol % n-C7 27, 36, 41 for graphene (G), nanotubes (CNT), fullerene-like particles (FCP), respectively. The efficiency postponement (AOP) reducing size aggregates is following decreasing order FCP > CNTs G. This performance allocated electron-cloud phase strong π–π interactions between molecules aromatic rings nanostructures. Higher compared other described by more effective surface geometry FCP, which causes stronger In contrast types nanoparticles, nanostructures, such as nanotubes, effectively manage aggregation at low dosages approximately or less. minimum equilibrium distance each nanostructure about 2.5 Å, inferring key role vdW forces these complexes. DFTB modeling indicates that energy values increase curvature allotropes decreases.

Language: Английский

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Investigation of oil-based CO2 foam EOR and carbon mitigation in a 2D visualization physical model: Effects of different injection strategies

Energy, Journal Year: 2024, Volume and Issue: 313, P. 133800 - 133800

Published: Nov. 10, 2024

Language: Английский

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Mechanism of CO₂ flooding in shale reservoirs – insights from nanofluids

Nanoscale, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

The flooding behavior of CO 2 in three types micro-nano networks was investigated, and the degree inter-fracture matrix utilization studied for first time using visualization techniques.

Language: Английский

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Evaluation of the synergistic effect of nanocomposite hydrogel based on imidazolium nitrate ionic liquids for enhanced oil recovery

Fuel, Journal Year: 2024, Volume and Issue: 377, P. 132811 - 132811

Published: Aug. 18, 2024

Language: Английский

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