Results 21 to 30 of about 3,345 (242)

Mechanism and Characteristics of CH4/CO2/H2O Adsorption in Lignite Molecules

Geofluids, 2021
Adsorption characteristics of coalbed methane (CBM) are significant to investigate the absorption of coal, shale, and porous media. In particular, adsorption characteristics of CH4, CO2, and H2O play an important role in predicting CBM output and ...
Zhihui Wen, Yunpeng Yang, Qi Wang, Banghua Yao   +3 more
doaj   +1 more source

Corrosion Performance of Engineered Barrier System in Deep Horizontal Drillholes

Energies, 2019
The disposal of spent nuclear fuel and other high-level radioactive waste in deep horizontal drillholes is an innovative system. Canisters of highly corrosion-resistant nickel-chromium-molybdenum (Ni-Cr-Mo) alloys are specified for the disposal of this ...
Joe H. Payer, Stefan Finsterle, John A. Apps, Richard A. Muller   +3 more
doaj   +1 more source

Toward a Fundamental Understanding of Geological Hydrogen Storage

Industrial & Engineering Chemistry Research, 2022
Geological H2 storage plays a central role to enable the successful transition to the renewable H2 economy and achieve net-zero emission in the atmosphere. Depleted oil and gas reservoirs are already explored with extensive reservoir and operational data. However, residual hydrocarbons can mix with injected H2 in the reservoirs.
Adnan Aftab, Aliakbar Hassanpouryouzband, Quan Xie, Laura L. Machuca, Mohammad Sarmadivaleh   +4 more
openaire   +3 more sources

Assessing the Effect of Mineralogy and Reaction Pathways on Geological Hydrogen (H₂) Generation in Ultramafic and Mafic (Basaltic) Rocks

Hydrogen
This study evaluates the impact of mineralogy, elemental composition, and reaction pathways on hydrogen (H2) generation in seven ultramafic and mafic (basaltic) rocks. Experiments were conducted under typical low-temperature hydrothermal conditions (150 °
Abubakar Isah, Hamidreza Samouei, Esuru Rita Okoroafor   +2 more
doaj   +1 more source

Perspective: Microbial hydrogen metabolism in rock-hosted ecosystems

Frontiers in Energy Research
Hydrogen (H2) is among the most common and widely utilized electron donors in microbial metabolism. This is particularly true for microorganisms that inhabit subsurface environments where H2 concentrations can be high due to H2 generation via one or more
Eric S. Boyd, Daniel R. Colman, Alexis S. Templeton   +2 more
doaj   +1 more source

The Iso2k database: a global compilation of paleo-δ¹⁸O and δ²H records to aid understanding of Common Era climate [PDF]

Earth System Science Data, 2020
Reconstructions of global hydroclimate during the Common Era (CE; the past ∼2000 years) are important for providing context for current and future global environmental change.
B. L. Konecky, N. P. McKay, O. V. Churakova (Sidorova), O. V. Churakova (Sidorova), L. Comas-Bru, E. P. Dassié, K. L. DeLong, G. M. Falster, M. J. Fischer, M. D. Jones, L. Jonkers, D. S. Kaufman, G. Leduc, S. R. Managave, B. Martrat, T. Opel, A. J. Orsi, J. W. Partin, H. R. Sayani, E. K. Thomas, D. M. Thompson, J. J. Tyler, N. J. Abram, A. R. Atwood, O. Cartapanis, J. L. Conroy, M. A. Curran, S. G. Dee, M. Deininger, D. V. Divine, Z. Kern, T. J. Porter, S. L. Stevenson, L. von Gunten   +33 more
doaj   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source

Finding geologic hydrogen generation in UAE ophiolites: insights from MT phase tensor mapping of serpentinization

Discover Applied Sciences
Geologic hydrogen is emerging as a primary energy source, drawing growing interest from the scientific community and the energy sector. One of the primary geochemical mechanisms for natural hydrogen generation is serpentinization, which is the hydration ...
Biruk Abera Cherkose, Mengli Zhang, Yaoguo Li   +2 more
doaj   +1 more source

From Surface to Bulk Activation: Tailoring the Porosity and Surface Chemistry of Resorcinol‐Formaldehyde Carbon Sorbents for Atmospheric Water Harvesting

Advanced Materials Interfaces, EarlyView.
A bulk activation route to produce nanoporous carbons for atmospheric water harvesting by incorporating potassium hydroxide during resorcinol‐formaldehyde polycondensation. These high‐oxygen sorbents deliver daily water yields up to 23 L kg−1 day−1 with great cyclability, providing a scalable solution for water production in diverse climates.
SeyedEmad AlaviTabari, Simon Ponton, Maëlle Roncière, Richard Boudreault, Pierre‐Luc Girard‐Lauriault, Jason Robert Tavares   +5 more
wiley   +1 more source

Experimental Study: The Effect of Pore Shape, Geometrical Heterogeneity, and Flow Rate on the Repetitive Two-Phase Fluid Transport in Microfluidic Porous Media

Micromachines, 2023
Geologic subsurface energy storage, such as porous-media compressed-air energy storage (PM-CAES) and underground hydrogen storage (UHS), involves the multi-phase fluid transport in structurally disordered or heterogeneous porous media (e.g., soils and ...
Seunghee Kim, Jingtao Zhang, Sangjin Ryu
doaj   +1 more source