A5031381468- Methane Hydrates and Related Phenomena
- Spacecraft and Cryogenic Technologies
- CO2 Sequestration and Geologic Interactions
- Inorganic Fluorides and Related Compounds
- Carbon Dioxide Capture Technologies
- Hydrocarbon exploration and reservoir analysis
- Metal-Organic Frameworks: Synthesis and Applications
- Atmospheric and Environmental Gas Dynamics
- Ionic liquids properties and applications
- Ammonia Synthesis and Nitrogen Reduction
- Crystallography and molecular interactions
- Cancer, Hypoxia, and Metabolism
- Chemical Synthesis and Reactions
- Drilling and Well Engineering
- Enhanced Oil Recovery Techniques
- Polymer composites and self-healing
- Supramolecular Chemistry and Complexes
- Freezing and Crystallization Processes
- Hydraulic Fracturing and Reservoir Analysis
- Oil and Gas Production Techniques
- Analytical Chemistry and Sensors
- Covalent Organic Framework Applications
- Corrosion Behavior and Inhibition
Seoul National University
2023-2025
Ulsan National Institute of Science and Technology
2019-2023
In this study, 13 machine learning (ML) models were employed to predict the phase equilibrium temperatures of CO2 hydrate in systems with salts and organic inhibitors: Multiple Linear Regression (MLR), Support Vector (SVR), k-Nearest Neighbors (KNN), Multi-Layer Perceptron (MLP), Decision Tree (DT), Random Forest (RF), Extra Trees (ET), Adaptive Boosting (AdaBoost), Categorical (CatBoost), Gradient Machine (GBM), Light (LGBM), Histogram-Based (HistGB), eXtreme (XGBoost). A dataset consisting...
Cellulose is a cheap, ecofriendly, and abundant organic polymer. In this study, physically or chemically modified microcrystalline cellulose (MCC) was evaluated as kinetic hydrate inhibitor (KHI) for CH4 hydrates using experimental computational methods. To overcome the strong hydrophobicity of MCC, high-pressure homogenized (HPHC) prepared by dispersing MCC homogeneously in water, surface-modified ionic (SMIC) obtained attaching an liquid (1,3-dimethylimidazolium methylphosphite,...
This research addresses the challenges of gas hydrate formation in subsea flowlines, focusing on investigation antiagglomerants (AAs): Vitamin E derivative (d-alpha tocopherol succinate, E-TS), sorbitan monostearate (Span-60), and dodecyl trimethylammonium bromide (DTAB), their synergistic interactions with monoethylene glycol (MEG). Through an in-depth examination onset time, growth rate, torque change under varying pH values, this study offers comprehensive insights into performance...
The time-dependent selectivity of SF6, the most potent global warming gas, in hydrate-based gas separation process was investigated through both experimental and computational approaches. Guest-enclathrating guest-releasing behaviors SF6 + N2 hydrate were observed via chromatography, situ Raman spectroscopy, molecular dynamics (MD) simulations. increasing pattern normalized area ratio peak for enclathrated molecules similar to that during formation, composition phase almost constant...
The current emphasis on achieving carbon neutrality underscores the significance of capture, utilization, and storage, making avoidance CO2 hydrate formation in transmission transport pipelines crucial. Considering this, present study explored potential oligopeptides as biodegradable kinetic inhibitors (KHIs) for inhibiting formation. Dipeptides (L-alanyl-L-alanine [Ala-Ala], L-alanylglycine [Ala-Gly], glycylglycine [Gly-Gly]) a tripeptide (glycylglycylglycine [Gly-Gly-Gly]) were...
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This study adopted experimental and computational approaches to investigate CH4 – CO2 replacement in the structure H (sH) + metheylcyclopentane (MCP) hydrate for its dual functions of recovery sequestration. Hydrate phase equilibria, 13C NMR spectra, molecular dynamics (MD) simulations MCP were examined compared with those neohexane (NH) elucidate guest exchange behaviors both systems. The I (sI) hydrates thermodynamically favored CO2-rich gas mixtures (CH4 systems), a structural...