Equilibrium of Hydrogen plus Cyclopentane and Carbon Dioxide plus Cyclopentane Binary Hydrates

Cyclopentane (CP) forms sII hydrates, in which CP only occupies the large cavities. Small gas molecules such as hydrogen and carbon dioxide can be encaged in the small cavities. However, there are no reported data on the equilibrium conditions of CP + H-2 and CP + CO2 binary hydrates, which are essential to developing CO2 capturing or H-2 enriching processes. In this study, the dissociation temperature of CP + H-2 hydrate pressures ranging from (2.7 to 11.1) MPa and CP + CO2 hydrates at pressures of (0.89 to 3.51) MPa was measured by using a high-pressure MicroDSC.