A5101685967- Methane Hydrates and Related Phenomena
- Spacecraft and Cryogenic Technologies
- CO2 Sequestration and Geologic Interactions
- Hydrocarbon exploration and reservoir analysis
- Atmospheric and Environmental Gas Dynamics
- Carbon Dioxide Capture Technologies
- Inorganic Fluorides and Related Compounds
- Membrane Separation and Gas Transport
- Spectroscopy and Laser Applications
- Terahertz technology and applications
- Hydraulic Fracturing and Reservoir Analysis
- Geology and Paleoclimatology Research
- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Membrane-based Ion Separation Techniques
- Surface Modification and Superhydrophobicity
- Astro and Planetary Science
- Calcium Carbonate Crystallization and Inhibition
- Membrane Separation Technologies
- Acoustic Wave Resonator Technologies
- Coastal wetland ecosystem dynamics
- Molecular Spectroscopy and Structure
- Crystallography and molecular interactions
- Spectroscopy and Quantum Chemical Studies
- Pickering emulsions and particle stabilization
Soongsil University
2020-2025
Georgia Institute of Technology
2018-2023
Korea Advanced Institute of Science and Technology
2013-2020
Daejeon University
2017
Government of the Republic of Korea
2017
Understanding of gas hydrates, for example, phase equilibria, in reservoir sediments is one the important issues fields energy production and CO2 sequestration via CH4 hydrate exploitation formation. The composition water clay can change their physical properties, which influences state hydrates exist clays. We investigated crystalline-swelled Na-montmorillonite (CS-mon) having content <27 wt % maintaining crystallinity particles. Instead a forming interlayer, dissolved swelled interlayers...
This work introduces a "hydrate seed solution", surfactant solution containing pre-constructed structure II (sII) hydrate crystals, for the rapid formation of hydrogen-enriched hydrocarbon mixed hydrates. We observed instantaneous nucleation and fast growth gas hydrates both CH4–H2 C2H6–H2 mixtures with cyclopentane (CP) seed. The CP seed, which is immiscible water, dominantly induces thermodynamically favorable sI structure. However, THF miscible induced seed-templated sII or hydrate,...
The direct recovery of methane from gas hydrate‐bearing sediments is demonstrated, where a gaseous mixture CO 2 + N used to trigger replacement reaction in complex phase surroundings. A one‐dimensional high‐pressure reactor (8 m) was designed test the actual aspects occurring natural hydrate (NGH) reservoir conditions. NGH can be converted into by “replacement mechanism,” which serves double duty as means both sustainable energy source extraction and greenhouse sequestration. efficiency...
As hydrogen molecules enter the clathrate hydrate body, ubiquitous dodecahedral cavity (512) is too small to allow anything but single occupancy thermodynamically. The possibility that H2 double can occur in has been suggested and still under debate. Here we uncover unique feature of multiple molecule a as induced by tuning cage dimensions. guest promoter population matrix spontaneously controls degree molecular storage Our analysis combined with computational study reveals only ∼1%...
The formation of gas hydrates in porous media is expected to bring out beneficial properties for storage and separation. Appropriate combined use both hydrate highly metal organic frameworks (MOFs) can be useful achieving advances the field This makes understanding behavior confining pores MOF crucial. phase equilibria CO2 CH4 were investigated using MIL-53 through low-temperature synchrotron high-resolution powder diffraction (HRPD) P–T traces. has intrinsic micropores intergranular...
In this review, we present a comprehensive strategies for overcoming hurdles to store hydrogen and natural gas in the clathrate hydrate media under static system.
This work provides fundamental insights into methane hydrate growth kinetics from cyclopentane (CP) seeds with a surface-active promoter of sodium dodecyl sulfate (SDS) or l-methionine under static formation system. The gas consumption rate and the apparent constant were determined kinetic model during at 275 K 7 MPa conditions. quantity preconstructed promoters was adjusted reaction As CP SDS have synergetic effect on promoting heterogeneous nucleation for growth, initial constant,...