In
this contribution, a rigorous kinetic model is proposed for carbon
dioxide (CO2) based gas hydrate formation in porous media
in the presence of a promoter. This model introduces the difference
in chemical potential between the water in hydrate phase and liquid
phase as the driving force. The effective surface area of porous material
is proposed for the growth of CO2 hydrate, and this parameter
plays a major role in making the model different with the existing
kinetic models. A parameter set is identified for each of the porous
materials used involving a system with various components at a reasonably
high pressure. The proposed kinetic model is finally evaluated for
four different porous materials (cellulose foam, silica gel, silica
sand, and polyurethane foam) by comparing it with the available models
with reference to the experimental data sets taken from the literature.
It is investigated that this kinetic model consistently outperforms
the existing models for a wide variety of conditions.
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