Ian L. Molnar
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View article: Experimental evidence for reaction-induced fracturing during CO2 mineralisation of basalt
Experimental evidence for reaction-induced fracturing during CO2 mineralisation of basalt Open
Recent laboratory and field studies have indicated that in-situ mineralisation of CO2 within basalt formations offers the potential for secure storage of large volumes of anthropogenic CO2. Here, we present the results of x-ray microtomogr…
View article: Hydrogen's Next Top Model: Exploring Processes and Practice in Hydrogen-Cushion Gas Mixing
Hydrogen's Next Top Model: Exploring Processes and Practice in Hydrogen-Cushion Gas Mixing Open
In underground hydrogen storage, mixing between Hydrogen and cushion gas could present a problem to the recoverability of working gas and may be a controlling factor in subsurface reactions. The conventional modelling approach focuses main…
View article: Modelling key reactive processes relevant to bisulfide transport through highly compacted bentonite
Modelling key reactive processes relevant to bisulfide transport through highly compacted bentonite Open
The Canadian deep geological repository (DGR) design consists of copper coated used fuel containers (UFCs) placed within a highly compacted bentonite (HCB) buffer surrounded by a suitable host rock. Although the copper is thermodynamically…
View article: X-ray translucent reaction cell for simulation of carbon mineral storage reservoir environments
X-ray translucent reaction cell for simulation of carbon mineral storage reservoir environments Open
Understanding how in-situ mineralization of CO2 affects the porosity, permeability, and pore network of the host rock is critical to assessing the viability of basalt reservoirs as carbon dioxide repositories. Here, we present an x-ray tra…
View article: Lab-based assessment of engineered CO­2 mineralization in mafic rock reservoirs
Lab-based assessment of engineered CO­2 mineralization in mafic rock reservoirs Open
Understanding how in-situ mineralization of CO2 affects the porosity and permeability of the host rock is critical to assessing the viability of basalt reservoirs as carbon dioxide repositories. Precipitating carbonate minerals have the po…
View article: Anion Transport Through Bentonite Under Various Geochemical Conditions
Anion Transport Through Bentonite Under Various Geochemical Conditions Open
The use of bentonite clay in industrial applications is widespread: it is used as an engineered barrier for long-term management of radioactive wastes, CO2 storage, landfill liners, and contaminant containment. These applications have dive…
View article: Heat storage in abandoned coal mine shafts in Scotland
Heat storage in abandoned coal mine shafts in Scotland Open
Following an increase in demand and extent of renewable energy systems, one of the most urgent challenges in the energy transition is the storage of intermittent renewable energy. Storage would enable continuous energy supply and ease curr…
View article: A coupled discrete-continuum approach to simulating CO2 migration and dissolution in porous media 
A coupled discrete-continuum approach to simulating CO2 migration and dissolution in porous media  Open
Carbon capture and storage (CCS) has emerged as a principal emissions reduction technology for the energy transition. Its effectiveness hinges largely on the security of the storage reservoir, which may be susceptible to leakage through pe…
View article: Relative Permeability of Hydrogen and Aqueous Brines in Sandstones and Carbonates at Reservoir Conditions
Relative Permeability of Hydrogen and Aqueous Brines in Sandstones and Carbonates at Reservoir Conditions Open
Geological hydrogen storage in depleted gas fields represents a new technology to mitigate climate change. It comes with several research gaps, around hydrogen recovery, including the flow behavior of hydrogen gas in porous media. Here, we…
View article: Exploring the governing transport mechanisms of corrosive agents in a Canadian deep geological repository
Exploring the governing transport mechanisms of corrosive agents in a Canadian deep geological repository Open
All nuclear energy producing nations face a common challenge associated with the long-term solution for their used nuclear fuel. After decades of research, many nuclear safety agencies worldwide agree that deep geological repositories (DGR…
View article: Relative permeability of hydrogen and aqueous brines in sandstones and carbonates at reservoir conditions: Data sets
Relative permeability of hydrogen and aqueous brines in sandstones and carbonates at reservoir conditions: Data sets Open
The article describing the data set has been accepted for publication in Geophysical Research Letters.
View article: Wettability Effects on Primary Drainage Mechanisms and NAPL Distribution: A Pore‐Scale Study
Wettability Effects on Primary Drainage Mechanisms and NAPL Distribution: A Pore‐Scale Study Open
The pore‐scale processes governing water drainage behavior in porous media have implications for geoscience multiphase scenarios including carbon capture and storage, contaminant site remediation, oil recovery, and vadose zone processes. H…
View article: Electro‐Thermal Subsurface Gas Generation and Transport: Model Validation and Implications
Electro‐Thermal Subsurface Gas Generation and Transport: Model Validation and Implications Open
Gas generation and flow in soil is relevant to applications such as the fate of leaking geologically sequestered carbon dioxide, natural releases of methane from peat and marine sediments, and numerous electro‐thermal remediation technolog…
View article: Quantified Pore-Scale Nanoparticle Transport in Porous Media and the Implications for Colloid Filtration Theory
Quantified Pore-Scale Nanoparticle Transport in Porous Media and the Implications for Colloid Filtration Theory Open
This study evaluates the pore-scale distribution of silver nanoparticles during transport through a sandy porous medium via quantitative synchrotron X-ray computed microtomography (qSXCMT). The associated distributions of nanoparticle flow…
View article: Uniform quartz - Silver nanoparticle injection experiment
Uniform quartz - Silver nanoparticle injection experiment Open
The dataset contains a series of SXCMT images of a sandy quartz media column during silver nanoparticle injection and elution from this media. The column was imaged 8 times during the silver nanoparticle transport experiment, and 4 images …