Experimental Methane Hydrate Dissociation Conditions in Aqueous Solutions of Lithium Salts

Gas hydrate dissociation pressures have been determined for methane in aqueous solutions of LiBr w = (0.05, 0.10, 0.15, and 0.2655) and LiCl w = (0.05, 0.10, 0.15, and 0.20) along the hydrate–liquid–gas equilibrium line in the temperature range (260 to 290) K and for pressures up to 22.5 MPa by applying an isochoric method. LiBr showed a more pronounced inhibition effect than LiCl as expected from the different degree of hydration caused by the different anion sizes.