A5025615898- CO2 Sequestration and Geologic Interactions
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Hydraulic Fracturing and Reservoir Analysis
- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Enhanced Oil Recovery Techniques
- Anaerobic Digestion and Biogas Production
- Atmospheric and Environmental Gas Dynamics
- Microbial Fuel Cells and Bioremediation
- Supercapacitor Materials and Fabrication
- Drilling and Well Engineering
- Hybrid Renewable Energy Systems
- Reservoir Engineering and Simulation Methods
- Geophysical and Geoelectrical Methods
- Seismic Imaging and Inversion Techniques
- Groundwater and Isotope Geochemistry
- Spacecraft and Cryogenic Technologies
- Peatlands and Wetlands Ecology
- Microbial Community Ecology and Physiology
- Soil Carbon and Nitrogen Dynamics
- Food Industry and Aquatic Biology
- Hydrogen Storage and Materials
- Geotechnical and Geomechanical Engineering
- Clay minerals and soil interactions
Institute of Environmental Assessment and Water Research
2016-2024
University of Edinburgh
2020-2024
Edinburgh College
2020
Universitat Politècnica de Catalunya
2016-2017
Consejo Superior de Investigaciones Científicas
2014-2017
Technical University of Denmark
2014
This article identifies and discusses the scientific challenges of hydrogen storage in porous media for safe efficient large-scale energy to enable a global economy.
The geological storage of hydrogen is necessary to enable the successful transition a economy and achieve net-zero emissions targets. Comprehensive investigations must be undertaken for each site ensure their long-term suitability functionality. As such, systematic infrastructure potential risks large-scale established. Herein, we conducted over 250 batch reaction experiments with different types reservoir sandstones under conditions representative subsurface, reflecting expected time scales...
Hydrogen can act as an energy store to balance supply and demand in the renewable sector. storage subsurface porous media could deliver high capacities but volume of recoverable hydrogen is unknown. We imaged displacement capillary trapping by brine a Clashach sandstone core at 2–7 MPa pore fluid pressure using X-ray computed microtomography. saturation obtained during drainage numbers <10−7 was ∼50% independent pressure. recovery secondary imbibition number 2.4 × 10−6 systematically...
Increasing greenhouse gas emissions have put pressure on global economies to adopt strategies for climate-change mitigation. Large-scale geological hydrogen storage in salt caverns and porous rocks has the potential achieve sustainable energy storage, contributing development of a low-carbon economy. During is injected extracted through cemented cased wells. In this context, well integrity leakage risk must be assessed in-depth investigations hydrogen-cement-rock physical geochemical...
Geological hydrogen storage, e.g. in depleted gas fields (DGF), can overcome imbalances between supply and demand the renewable energy sector facilitate transition to a low carbon emissions society. A range of subsurface microorganisms utilise hydrogen, which may have important implications for recovery, clogging corrosion. We gathered temperature salinity data 75 DGF on UK continental shelf mapped their suitability storage terms risk adverse microbial effects, based novel collection growth...
The geological storage of hydrogen is a seasonal energy solution, and the capacity saline aquifers most appropriately defined by quantifying amount that can be injected reproduced over relevant time period. Cushion gas, stored in reservoir to support production working CAPEX, which should reduced decrease implementation cost for gas storage. cushion ratio provides sufficiently accurate reflection efficiency, with higher ratios equating larger initial investments. This paper investigates how...
Hydrogen (H2) can support the transition to net-zero carbon (C) emissions by facilitating increased renewable energy use acting as an store balance supply and demand. Underground H2 storage in porous media is investigated due its high capacity economical price. An important unknown underground volume of recoverable which partly controlled wettability. Current contact angle data sandstone systems span large ranges fall short clarifying if wettability changes with pressure. We computed novel...
Underground hydrogen storage (UHS) in porous reservoirs is a promising solution for large-scale renewable energy storage. However, significant uncertainties remain regarding the impact of cyclic injection and withdrawal cycles on reservoir geochemistry hydraulic properties, particularly depleted gas reservoirs, containing residual methane or CO2. Recent studies have highlighted complex interplay coupled thermo-hydro-mechanical-chemical microbiological (THMCB) processes that could influence...
Abstract. The efflux of carbon dioxide (CO2) from soils influences atmospheric CO2 concentrations and thereby climate change. partitioning inorganic (C) fluxes in the vadose zone between emission to atmosphere groundwater was investigated reveal controlling underlying mechanisms. Carbon partial pressure soil gas (pCO2), alkalinity, moisture temperature were measured over depth time unplanted planted (barley) mesocosms. dissolved (DIC) percolation flux calculated pCO2, alkalinity water at...
Subsurface storage of hydrogen, e.g. in depleted gas or oil fields (DOGF), is suggested as a means to overcome imbalances between supply and demand the renewable energy sector. However, hydrogen an electron donor for subsurface microbial processes, which may have important implications recovery, injectivity corrosion. Here, we review controls on three major consuming processes subsurface, methanogenesis, homoacetogenesis, sulfate reduction, basis develop site selection tool. Testing our tool...
In a series of mesocosm experiments, with barley ( Hordeum vulgare L.) grown on podzolic soil material, we have investigated inorganic carbon cycling through the gaseous and liquid phases how it is affected by different amendments. The amendments comprised addition 0, 9.6, or 21.2 kg m −2 crushed concrete waste (CCW) 1 lime . CCW treatments increased dissolved (DIC) percolation flux about 150 100%, respectively, compared to controls. However, concurrent increases in CO 2 efflux atmosphere...
Climate change, triggered by a continuously rising use of carbon based energy sources, is global concern. Geological hydrogen storage, e.g. in depleted gas fields or saline aquifers, can overcome imbalances between supply and demand the renewable sector facilitate transition to low emissions society, this way mitigating climate change. However, range subsurface microorganisms utilise which may have important implications for recovery, clogging corrosion. We created novel, globally applicable...
The storage of hydrogen in porous reservoirs is underway to deliver large scale, low-carbon energy storage, because it supports renewable electricity curtailment, decarbonises and increases security by utilising local sources. Permian sandstone the Southern North Sea are a prime candidate for potential future operations. Building on this potential, paper introduces new method estimating dynamic capacity. This estimation based establishment an equilibrium between injected withdrawn, including...
Hydrogen can act as an energy store to balance supply and demand in the renewable sector. storage subsurface porous media could deliver high capacities but volume of recoverable hydrogen is unknown. We imaged displacement capillary trapping by brine a Clashach sandstone cylinder at 2-7 MPa pore fluid pressure using X-ray computed microtomography. saturation obtained during drainage numbers <10-7 was ~50% independent injection pressure. Fluid configuration space indicative water wetting...
Abstract. Dissolved inorganic carbon (DIC) fluxes across the vadose zone are influenced by a complex interplay of biological, chemical and physical factors. A novel soil mesocosm system was evaluated as tool for providing information on mechanisms behind DIC percolation to groundwater from unplanted soil. Carbon dioxide partial pressure (pCO2), alkalinity, moisture temperature were measured with depth time, in percolate quantified using sodium hydroxide trap. Results showed good...
Abstract. The efflux of carbon dioxide (CO2) from soils influences atmospheric CO2 concentrations and thereby climate change. partitioning inorganic fluxes in the vadose zone between emission to atmosphere groundwater was investigated. Carbon partial pressure soil gas (pCO2), alkalinity, moisture temperature were measured over depth time unplanted planted (barley) mesocosms. dissolved (DIC) percolation flux calculated pCO2, alkalinity water at mesocosm bottom. exchange surface regular...
Hydrogen (H2) can support the transition to net-zero carbon (C) emissions by facilitating increased renewable energy use acting as an store balance supply and demand. Underground H2 storage in porous media is investigated due its high capacity economical price. An important unknown underground volume of recoverable which partly controlled wettability. Current contact angle data sandstone systems span large ranges fall short clarifying if wettability changes with pressure.We computed novel...
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