The Optical Measurement of CO sub(2) Clathrate Hydrate Membrane Thickness

The technology of the deep-ocean CO sub(2) storage is expected to directly mitigate the source of the global warming. At deep-ocean condition above 4.45 MPa and below 283 K, the CO sub(2) clathrate hydrate crystals are formed as membrane at the interface between the liquid-water phase and the liquid...

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Published inJournal of thermal science and technology (Japan Society of Mechanical Engineers) Vol. 2; no. 1; pp. 13 - 18
Main Authors Abe, Yutaka, Abe, Yuichi, Aya, Izuo, Yamane, Kenji
Format Journal Article
LanguageEnglish
Published 01.01.2007
Subjects
Carbon dioxide
Clathrate hydrates
Crystals
Droplets
Global warming
Hydrates
Interference
Membranes
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Summary:The technology of the deep-ocean CO sub(2) storage is expected to directly mitigate the source of the global warming. At deep-ocean condition above 4.45 MPa and below 283 K, the CO sub(2) clathrate hydrate crystals are formed as membrane at the interface between the liquid-water phase and the liquid-CO sub(2) phase. Since the strength and the thickness of the hydrate membrane are crucial to the storage period, it is important to experimentally measure the mechanical characteristics of the CO sub(2) hydrate membrane and the hydrate droplet. In the present study, the CO sub(2) hydrate membrane thickness is measured by using the laser-light interference method. It is clarified that the present method by using the beam light interference method is applicable to measure the CO sub(2) hydrate membrane. The hydrate membrane thickness is estimated to be about 7 km[approx]12km at 10MPa and 275 K[approx]283 K. It is also clarified that thickness of the CO sub(2) hydrate membrane is in proportion to the temperature.
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ISSN:1880-5566
1880-5566
DOI:10.1299/jtst.2.13