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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Measurement of Temperature Distribution for the Hydrate Formation and Dissociation in Porous Media

Get access (open in a dialog) DOI: 10.1615/IHTC15.tpp.008806
pages 8821-8828

摘要

Hydrate thermal property is crucial for natural gas hydrate exploitation and hydrate-based technology industrial applications. Hydrate formation is exothermic processes and hydrate dissociation is endothermic processes. The experimental data of thermal property for hydrate formation and dissociation is scarcity, especially for that in porous media. It is mainly caused by the limitation of measurement technology and the rapid hydrate formation rate. The purpose of this study is to provide a new experimental method for measurement of temperature profile in porous media. Some basic thermal data is obtained for Tetrahydrofuran (THF) hydrate formation and dissociation in porous media. Glass beads were accumulated to form porous media. There is no hydrate formation when the temperature is set to 269.15 K, and hydrate was formed at 265.15 K with a obvious induction time. Magnetic Resonance Imaging (MRI) images were obtained using a spin echo multi-slice pulse sequence. The experimental results showed that THF hydrate formed rapidly. The exothermic processes can be measured in this study. There is a obvious high temperature region around hydrate formation zones. The detail temperature distribution is hard to obtain due to the long MRI acquire time. The sensitivity of MRI system is high when temperature is above than 284.15 K.