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CATASTROPHIC GAS HYDRATE GROWTH UNDER SHUT-IN AND COLD START UP CONDITIONS

SUNDRAMOORTHY, JEGA DIVAN (2015) CATASTROPHIC GAS HYDRATE GROWTH UNDER SHUT-IN AND COLD START UP CONDITIONS. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

In this present work, capillary aided catastrophic gas hydrate growth is observed under shut-in and cold start-up conditions employing newly fabricated customized apparatus, consisting of six units of identical rocking gas hydrate cell. The observation of a capillary-aided mass-transport mechanism for a catastrophic hydrate growth with and without kinetic hydrate inhibitor is presented. Visual observation shows that the hydrate crystal formation at the brine wetted area close to the brine/gas interface initiates capillary-aided catastrophic hydrate growth. Moreover, no masstransfer restriction of brine towards catastrophic gas hydrate growth is observed. The capillary force may provide a greater driving force to form gas hydrates than the diffusion rate of gasses into the bulk water phase. It is also found that the production profiles such as different shut-in time and capillary aided water transport influences the produce water to grow hydrate in distinctive ways.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Chemical Engineering - Environment
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 18 Sep 2021 21:13
Last Modified: 18 Sep 2021 21:13
URI: http://utpedia.utp.edu.my/id/eprint/21425

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