Thermodynamic Modelling Phase Boundary of Hydrogen Hydrate in the Presence of Cyclopentane as a Promising Mechanism for Hydrogen Storage

Hydrogen has a great potential as an energy source and hydrogen in form of hydrate as a promising technology for hydrogen storage has been identified. Hence in this work, a classical thermodynamic approach for phase equilibrium boundary of hydrogen hydrate in the presence of cyclopentane as promoter effect on reduction formation pressure of hydrogen hydrate has been proposed. The cell potential calculation is adopted from contributions of three different shells. To determine the Kihara cell potential parameters, viscosity and second virial coefficient data are utilized while, conventional van der Waals and Platteeuw type models that fit these parameters to the experimental points of hydrates. The obtained results revealed that the Percent absolute average deviations (%AAD) in the predicted hydrate equilibrium pressures for hydrogen + cyclopentane system is 0.28%. Thereby, acceptable agreement for the proposed hydrate modeling is observed