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New Technology: Hydrate-Based (CO2)

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Hydrate-based CO2 separation is a new technology in which hydrates are formed by exposing Carbon dioxide to water at high pressures. Differences in phase equilibrium cause formation of hydrates. Gas hydrates are crystalline solids in which guest molecules are trapped inside the H-bonded water molecule network. The structure of the hydrate is determined by the shape and size of the guest molecule. This presence of the guest molecule stabilizes the structure at temperatures well above the freezing point. Gas hydrates formation technique may be used to treat the flue gas from power plants in which CO2 is separated from N2 and O2. The basis of the separation is that CO2 is preferentially encaged into the hydrate crystal due to the lower equilibrium
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