The Nonlinear Dynamics of CO2 Emissions in Pakistan: A Comprehensive Analysis of Transportation, Electricity Consumption, and Foreign Direct Investment DOI Open Access
Muhammad Adeel, Biao Wang, Ji Ke

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 17(1), P. 189 - 189

Published: Dec. 30, 2024

CO2 emissions are major drivers of climate change, causing global warming, extreme weather, and biodiversity loss. They disrupt ecosystems, deplete resources, threaten public health economic stability. Reducing is essential for stability sustainability. This study explores the complex relationships between factors such as transportation sector, electricity consumption, foreign direct investment (FDI), international trade, gross domestic product (GDP). The focus on small- medium-sized enterprises (SME) in Pakistan. Using time series data from 2000 to 2022. applies advanced econometric techniques, including nonlinear autoregressive distributed lag (NARDL), dynamic ordinary least squares (DOLS), fully modified (FMOLS). findings highlight that increased activities, FDI contribute higher emissions. However, can also help reduce emissions, particularly through investments green technologies. emphasizes importance transitioning renewable energy adopting sustainable practices across sectors electricity, transportation. Specifically, consumption were found significantly impact with a 10% increase activities resulting 5% rise Conversely, by approximately 3% per unit investment, largely due technology adoption. Additionally, integrating energy-efficient technologies lead 20% reduction Policymakers experts must prioritize strategies promote adoption integrate ensure long-term environmental research innovative its analysis interconnected effects transportation, By applying sophisticated methods, it highlights potential FDI, investments, mitigate damage. study, focusing Pakistan, offers insights into how growth be balanced

Language: Английский

The reversal of carbonate wettability via alumina nanofluids: Implications for hydrogen geological storage DOI Creative Commons
Amer Alanazi, Mujahid Ali, Muhammad Ali

et al.

Fuel, Journal Year: 2024, Volume and Issue: 370, P. 131842 - 131842

Published: May 9, 2024

Underground hydrogen storage (UHS) has been recognized as a key enabler of the industrial-scale implementation hydrogen-based economy. However, efficiency and capacity (H2) in carbonate aquifers can be influenced by presence organic acids. Nevertheless, existing literature contains few investigations H2/calcite/brine wettability influence acids on H2 storability reservoirs. Therefore, present study examines stearic acid dynamic H2/brine calcite substrates (as proxy formation) under various geological conditions (0.1–20 MPa at 323 K), equilibrated 10 wt% NaCl brine. In addition, application alumina nanofluid concentrations (0.05, 0.1, 0.25, 0.75 wt%) is evaluated same experimental for enhancing organic-aged wettability. The results demonstrate significant impact (advancing receding) contact angles substrates, thereby resulting shift from intermediate water-wet to H2-wet conditions, representing an unfavorable state storage. Conversely, substrate enhances H2/brine/calcite towards state, which more favorable residual trapping formations. optimal concentration modification organically aged samples found 0.25 wt%. These findings highlight contamination potential geo-storage

Language: Английский

Citations

9
Basalt–Hydrogen–Water Interactions at Geo-Storage Conditions DOI
Ahmed Al‐Yaseri, Ahmed Fatah, Abduljamiu O. Amao

et al.

Energy & Fuels, Journal Year: 2023, Volume and Issue: 37(19), P. 15138 - 15152

Published: Sept. 22, 2023

Hydrogen geo-storage is a promising technology to achieve net-zero carbon emissions. Basaltic rocks have attracted limited attention, and only knowledge of the suitability basaltic formations for large-scale hydrogen storage available. The complex in situ geochemical reaction basalt–hydrogen key factor evaluating basalt storage. This paper investigates interactions hydrogen–basalt–water evaluates impact on basalt's physical properties. Basalt samples collected from CarbFix site Iceland are treated with hydrogen–water 108 days under 9.65 MPa at 348 K, various analytical methods employed. results show minor dissolution plagioclase minerals after treatment due redox reactions hydrogen. However, this behavior might contribute precipitation calcium surface. Images obtained scanning electron microscopy reveal that filling cracks was removed no obvious crack growth, which resulted increase pores (4%). Contact angle measurements surface wettability remains water-wet treatment. A blank nitrogen–DI water test performed, potential between basalt, indicating changes exist. We conclude reactivity injection low; thus, promising. work can be suitable experimental framework assist assessing UHS.

Language: Английский

Citations

20
Hydrogen wettability of Saudi Arabian Basalt: Implications for H2 geo-storage DOI Creative Commons
Muhammad Ali, Nurudeen Yekeen, Mujahid Ali

et al.

Fuel, Journal Year: 2024, Volume and Issue: 371, P. 132045 - 132045

Published: May 31, 2024

The large-scale subsurface storage of hydrogen is a crucial element the economy value chain and an essential process for achieving successful replacement carbon-based fuels. wettability rock-H2-brine system, as quantified by contact angle measurement, has been focus most recent research due to its impacts on fluid flow, H2 migration recovery efficiency during underground (UHS). However, reported data sets are quite inconsistent, there relatively few literature reports regarding angles H2/brine Saudi Arabian basalt (SAB) compared quartz, shale, mica, calcite. Hence, advancing receding θaandθr SAB-H2-brine system measured herein via sessile drop method at various temperatures (308 323 K) pressures (0.1–20 MPa) ascertain appropriateness SAB UHS. results indicate that generally increases with pressure temperature, but pure remains strongly water wet, having θa θr<45° under all experimental conditions. Conversely, stearic acid contamination (10−2 mol/L) found be inimical UHS, increasing from 42.1° 100.8° aged SAB, while θr 36.3° 94.2°, 20 MPa K. At same temperature K, column heights decrease pressure, reaching 4663 m −424 organic respectively, MPa, thereby confirming increased depth unfavorable UHS in SAB. These provide insights into conditions favorable formations.

Language: Английский

Citations

8
Nanofluid-assisted enhanced sealing security for efficient geological hydrogen storage in Saudi Arabian basalt DOI Creative Commons
Muhammad Ali, Nurudeen Yekeen, Sarmad Al‐Anssari

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 97, P. 112768 - 112768

Published: July 1, 2024

The modification of hydrophobic rock surfaces to the water-wet state via nanofluid treatment has shown promise in enhancing their geological storage capabilities and efficiency carbon dioxide (CO2) hydrogen (H2) containment. Despite this, specific influence silica (SiO2) nanoparticles on interactions between H2, brine, within basaltic formations remains underexplored. present study focuses effect SiO2 wettability Saudi Arabian basalt (SAB) under downhole conditions (323 K pressures ranging from 1 20 MPa) by using tilted plate technique measure contact angles H2/brine surfaces. findings reveal that SAB's hydrophobicity intensifies presence organic acids, with significant increases both advancing (θa) receding (θr) upon exposure acid at 323 MPa. Contrastingly, application these results a marked shift towards hydrophilicity, θa θr decreasing substantially, thus indicating an optimal nanoparticle concentration (0.1 wt% SiO2) for effecting transition H2-wet states. This change aligns known pressure-dependent behavior angles. Moreover, organically-aged 0.1 nanofluids MPa enhances H2 column height significantly, −424 m 4340 m, suggesting reduced risk migration across caprock thereby structural/residual trapping containment security Arabia. article highlights crucial role improving efficacy basalt, offering new insight optimization solutions hydrogen, critical component sustainable energy future.

Language: Английский

Citations

8
Hydrogen adsorption kinetics in organic-Rich shale reservoir rocks for seasonal geological storage DOI Creative Commons
Amer Alanazi, Hussein Rasool Abid, Israa S. Abu‐Mahfouz

et al.

Fuel, Journal Year: 2024, Volume and Issue: 379, P. 132964 - 132964

Published: Sept. 4, 2024

Language: Английский

Citations

8
A Review on carbon dioxide sequestration potentiality in basaltic rocks: Experiments, simulations, and pilot tests applications DOI
Grant Charles Mwakipunda,

Ping Yu,

Norga Alloyce Komba

et al.

Geoenergy Science and Engineering, Journal Year: 2024, Volume and Issue: 242, P. 213253 - 213253

Published: Aug. 28, 2024

Language: Английский

Citations

7
The effect of methylene blue on stearic acid-aged quartz/CO2/brine wettability: Implications for CO2 geo-storage DOI Creative Commons
Fatemah Alhammad, Mujahid Ali, Nurudeen Yekeen

et al.

Gas Science and Engineering, Journal Year: 2024, Volume and Issue: 125, P. 205316 - 205316

Published: April 7, 2024

Carbon dioxide sequestration in geological formations has been proposed as a promising solution to reach net zero carbon emissions but the success of underground CO2 storage sandstone depends on brine/CO2 wettability sandstone. Research evidence showed that natural formation is hydrophobic even presence minute concentration inherent organic acids. This study investigates effect methylene blue (MB) organic-acid contaminated quartz through tilted plate contact angle measurement method. Pure substrates were aged stearic acid/n-decane for one week and subsequently modified with different concentrations MB (ranging from 10 100 mg/L) at temperature 60 °C. Advancing (θa) receding (θr) angles measured under varying conditions (25 °C 50 °C), pressure 20 MPa), salinity (0-0.3 M). The experimental results indicate pure quartz, when acid solution, becomes CO2-wet all temperature, pressure, conditions. However, any physio-thermal condition, surfaces was reversed treated MB, transitioning water-wet state. findings this research demonstrate potential modify wetting behaviour enhance residual trapping

Language: Английский

Citations

4
Microstructural alterations of coal induced by interaction with sequestered supercritical carbon dioxide DOI

Liangwei Li,

Xianfeng Liu, Baisheng Nie

et al.

Energy, Journal Year: 2024, Volume and Issue: 304, P. 131912 - 131912

Published: June 13, 2024

Language: Английский

Citations

4
Impact of supercritical CO2 saturation temperature on anthracite microstructures: Implications for CO2 sequestration DOI

Yongbo Yang,

Linchao Dai, Xianfeng Liu

et al.

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 388, P. 122726 - 122726

Published: Aug. 1, 2023

Language: Английский

Citations

10
Influence of carbon nanodots on the Carbonate/CO2/Brine wettability and CO2-Brine interfacial Tension: Implications for CO2 geo-storage DOI Open Access
Sivabalan Sakthivel, Nurudeen Yekeen, Rajesh Theravalappil

et al.

Fuel, Journal Year: 2023, Volume and Issue: 355, P. 129404 - 129404

Published: Aug. 10, 2023

Language: Английский

Citations

10