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Medientyp:
E-Book;
Hochschulschrift
Titel:
Systematic studies on the thermodynamic properties of gas hydrates and their formation/dissociation/transformation behaviors
Weitere Titel:
Übersetzung des Haupttitels: Systematische Untersuchungen zu den thermodynamischen Eigenschaften von Gashydraten und ihrem Bildungs-/Dissoziations-/Umwandlungsverhalten
Hochschulschrift:
Dissertation, Universität Potsdam, 2022
Anmerkungen:
Volltext: PDF
Literaturverzeichnis: Seite 176-190
Beschreibung:
Gas hydrates are ice-like crystalline compounds made of water cavities that retain various types of guest molecules. Natural gas hydrates are CH4-rich but also contain higher hydrocarbons as well as CO2, H2S, etc. They are highly dependent of local pressure and temperature conditions. Considering the high energy content, natural gas hydrates are artificially dissociated for the production of methane gas. Besides, they may also dissociate in response to global warming. It is therefore crucial to investigate the hydrate nucleation and growth process at a molecular level. The understanding of how guest molecules in the hydrate cavities respond to warming climate or gas injection is also of great importance. This thesis is concerned with a systematic investigation of simple and mixed gas hydrates at conditions relevant to the natural hydrate reservoir in Qilian Mountain permafrost, China. A high-pressure cell that integrated into the confocal Raman spectroscopy ensured a precise and continuous characterization of the hydrate phase during ...