Equilibrium Conditions of Propane Hydrates in Aqueous Solutions of Alcohols, Glycols, and Glycerol

Abstract

Equilibrium conditions of propane hydrates in aqueous solutions of methanol, ethanol, ethylene glycol, diethylene glycol, triethylene glycol, and glycerol were measured at temperatures of (267.5 to 278.1) K and pressures of up to 0.527 MPa by the use of both isochoric and isothermal methods. The inhibiting effect on the propane hydrate equilibria on a mass fraction basis decreased in the following order: methanol, ethanol, ethylene glycol, glycerol, diethylene glycol, and triethylene glycol.