Investigation of the Variation of the Surface Area of Gas Hydrates during Dissociation by Depressurization in Porous Media

• DOI: 10.1021/ef400807n
• Publication Date: 2013-09-16T15:11:10Z
• Authors: Anjani Kumar; Brij Maini; P. R. Bishnoi; Matthew Clarke
• Keywords: Clathrate hydrate; Cabin pressurization

Carbon dioxide gas hydrates were formed and decomposed in a high-pressure cell equipped with flat glass window that was packed spherical beads. The experimental constructed to be, for all practical purposes, one-dimensional cell, beads chosen as the porous medium becaus of their high permeability easily defined geometry. experiments conducted at initial water saturations 20, 25, 30, 35, 42% pressure 4 MPa during hydrate formation 1.65 decomposition. temperature maintained °C. To identify functional form time-dependent surface area decomposition, sensitivity analysis data from one experiments. It found that, this apparatus, beads, most closely approximated correlation assumed habit be grain-coating. Subsequently, selected used modeling other experiments, it results agreed excellently data.