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Clathrate hydrates of natural gases

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TLDR
In this paper, the authors compared the properties of hydrates and ice with those of natural gas and showed the effect of thermodynamic inhibitors on the formation of hydrate formation and dissolution process.
Abstract
PREFACE Overview and Historical Perspective Hydrates as a Laboratory Curiosity Hydrates in the Natural Gas Industry Hydrates as an Energy Resource Environmental Aspects of Hydrates Safety Aspects of Hydrates Relationship of This Chapter to Those That Follow Molecular Structures and Similarities to Ice Crystal Structures of Ice Ih and Natural Gas Hydrates Comparison of Properties of Hydrates and Ice The What and the How of Hydrate Structures Hydrate Formation and Dissociation Processes Hydrate Nucleation Hydrate Growth Hydrate Dissociation Estimation Techniques for Phase Equilibria of Natural Gas Hydrates Hydrate Phase Diagrams for Water + Hydrocarbon Systems Three-Phase (LW-H-V) Equilibrium Calculations Quadruple Points and Equilibrium of Three Condensed Phases (LW-H-LHC) Effect of Thermodynamic Inhibitors on Hydrate Formation Two-Phase Equilibrium: Hydrates with One Other Phase Hydrate Enthalpy and Hydration Number from Phase Equilibrium Summary and Relationship to Chapters Which Follow A Statistical Thermodynamic Approach to Hydrate Phase Equilibria Statistical Thermodynamics of Hydrate Equilibria Application of the Method to Analyze Systems of Methane + Ethane + Propane Computer Simulation: Another Microscopic-Macroscopic Bridge Summary Experimental Methods and Measurements of Hydrate Properties Experimental Apparatuses and Methods for Macroscopic Measurements Measurements of the Hydrate Phase Data for Natural Gas Hydrate Phase Equilibria and Thermal Properties Summary and Relationship to Chapters that Follow References Hydrates in the Earth The Paradigm Is Changing from Assessment of Amount to Production of Gas Sediments with Hydrates Typically Have Low Contents of Biogenic Methane Sediment Lithology and Fluid Flow Are Major Controls on Hydrate Deposition Remote Methods Enable an Estimation of the Extent of a Hydrated Reservoir Drilling Logs and/or Coring Provide Improved Assessments of Hydrated Gas Amounts Hydrate Reservoir Models Indicate Key Variables for Methane Production Future Hydrated Gas Production Trends Are from the Permafrost to the Ocean Hydrates Play a Part in Climate Change and Geohazards Summary Hydrates in Production, Processing, and Transportation How Do Hydrate Plugs Form in Industrial Equipment? How Are Hydrate Plug Formations Prevented? How Is a Hydrate Plug Dissociated? Safety and Hydrate Plug Removal Applications to Gas Transport and Storage Summary of Hydrates in Flow Assurance and Transportation APPENDICES INDEX

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Measurements of methane hydrate heat of dissociation using high pressure differential scanning calorimetry

TL;DR: In this article, a high pressure differential scanning calorimeter (DSC) was used to measure the methane hydrate heat of dissociation (H→W+G), Δ H d, which was shown to be in agreement with the Clausius-Clapeyron equation predictions at high pressures.
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A clathrate reservoir hypothesis for Enceladus' south polar plume.

TL;DR: It is hypothesize that active tectonic processes in the south polar terrain of Enceladus, the 500-kilometer-diameter moon of Saturn, are creating fractures that cause degassing of a clathrate reservoir to produce the plume documented by the instruments on the Cassini spacecraft.
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Dialkylimidazolium halide ionic liquids as dual function inhibitors for methane hydrate

TL;DR: In this paper, six dialkylimidazolium halide ionic liquids have been investigated for their potential application as novel gas hydrate inhibitors and their effects on the equilibrium hydrate dissociation curve in a pressure range 105-205 bar and the induction time of methane hydrate formation at 114-bar and a high degree of supercooling, i.e., about 25°C, are measured in a high-pressure micro-differential scanning calorimeter.
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Perspectives on molecular simulation of clathrate hydrates: Progress, prospects and challenges

TL;DR: In this paper, the intriguing properties of clathrate hydrates are discussed, as well as their environmental impact and prospects for energy exploitation in industry, especially in terms of microscopic mechanisms of thermal conduction, nucleation, hydrogen storage and prospect for carbon sequestration.
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Gas hydrates of methane, ethane, propane, and carbon dioxide in the presence of single NaCl, KCl, and CaCl2 aqueous solutions: Experimental measurements and predictions of dissociation conditions

TL;DR: In this paper, the experimental data were generated using a reliable isochoric technique and compared with some selected experimental data from the literature and the agreements were generally found acceptable, which is a guarantee for the reliability of our experimental technique and the data generated here.
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