C125 Experimental Study on Dissociation Heat Transfer Characteristics of Methane Gas Hydrate

Abstract

The dissociation rate of the methane hydrate was measured over the range of pressure from 0.1 to 6MPa in gaseous methane and mixture water. The results indicate that driving force of the decomposition is ΔT, difference in temperature between water and hydrate surface. The interfacial temperature of dissociating hydrate is three-phase equilibrium temperature at system pressure. When system pressure is lower than 2.55MPa, by assuming the interfacial temperature becomes the freezing point, the dissociation model is able to express the rate of mass transfer