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Title:
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Thermodynamics and kinetics studies of formation and decomposition of clathrates hydrates of methane, carbon dioxide and their mixtures using a differential heat flux calorimeter |
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Author:
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Besnard, Guillaume |
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Advisor:
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Kobayashi, Riki |
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Degree:
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Master of Science thesis |
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Abstract:
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A high pressure heat flux calorimeter in isobaric, temperature-ramping mode has been used to measure the solubility of pure methane, pure carbon dioxide and methane-carbon dioxide mixtures. The solubility measurements emphasize a crystallization-like process taking place during hydrate formation and show a striking divergence from Henry's Law, the frequently used calculation procedure, prior to and during hydrate formation. These measurements were further used to determine the enthalpies of solution/dissociation, and entropies change. Moreover, the hydration numbers of these compounds provide some explanations and criteria of stability of the cages of gas hydrates in the host lattice.
Finally, a kinetic study confirms the crystallization process of hydrate formation and exhibits a high level of supersaturation prior to hydrate formation and also a high consumption rate during hydrate formation. |
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Citation:
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Besnard, Guillaume. "Thermodynamics and kinetics studies of formation and decomposition of clathrates hydrates of methane, carbon dioxide and their mixtures using a differential heat flux calorimeter." Masters Thesis, Rice University, ETD http://hdl.handle.net/1911/17065. |
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Citable link to this page:
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http://hdl.handle.net/1911/17065 |
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Date:
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1997 |
