Two approaches for modelling hydrate growth |
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Authors: | Trygve Buanes Bjørn Kvamme Atle Svandal |
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Institution: | (1) Helmholtz Centre Potsdam – GFZ German Research Centre for Geosciences, Section 4.2, Potsdam, Germany |
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Abstract: | We consider two different approaches to model growth of CO2 hydrate, phase field theory and a model based on cellular automata. The two approaches are applied to simulations of hydrate
growth from supersaturated aqueous solution of CO2. The thermodynamic models for the solution properties are derived from experimental solubility data while the hydrate thermodynamics
is based on adsorption theory with reference properties derived from molecular simulations. We show that the cellular automata
approach has the benefit of being much more computationally efficient, and are still giving results which are consistent with
results from the phase field theory. |
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