An experimental investigation into the effects of zeolites on the formation of methane hydrates

Abstract

SUMMARY Methane hydrate is an ice‐like nonstoichiometric compound that forms when methane reacts with water at high pressures and low temperatures. It has a lot of practical applications such as separation processes, natural gas storage transportation, and carbon dioxide sequestration. Especially, the industrial use of hydrates requires large amounts of gas to be formed quickly into hydrates. Porous media significantly influence the rate of hydrate formation by reducing the chemical barrier, where zeolites are microporous minerals. This paper deals with natural and synthetic (5A and 13A) zeolites for hydrate formation and gas storage capacity. The results show that methane hydrates are formed much faster in the three zeolite solutions tested compared with their formation in distilled water at low subcooling temperatures (<7 K). It was also observed that the gas consumption was the greatest in the 0.01 wt.% zeolite 13X solution of distilled water. Its gas consumption was 5.1 times that of distilled water at 0.5 K subcooling. Zeolite 13X demonstrated its effectiveness in enhancing and expediting methane hydrate formation. Copyright © 2014 John Wiley & Sons, Ltd.

Effect of different fixed bed media on the performance of sodium dodecyl sulfate for hydrate based CO 2 capture

“…3, at hydrate formation conditions, the amount of gas that gets adsorbed in dry zeolite is very small. However it is reported in literature, that at high temperatures, zeolites show significant gas consumption [68][69][70][71][72][73]. On the other hand, according to our observations, at hydrate formation conditions, the gas consumption in presence of water is significantly higher than that in case of dry zeolite.…”

“…However, the effects of different types of Zeolite: 3A, 5A and 13X on methane hydrate formation have been reported in literature [69][70][71].…”

Methane Hydrate in Confined Spaces: An Alternative Storage System

“…This unusual behavior was also reported for natural and synthetic zeolites (5 A and 13X), i. e., hydrate formation is easier in the zeolite solutions . Using different water/zeolites suspension, Kim et al.…”

Promoting Methane Hydrate Formation for Natural Gas Storage over Chabazite Zeolites

“…Zeolites are suitable porous materials due to their high mechanical and thermal stability, large surface areas, and tunable surface chemistry. As far as the authors are aware, few zeolites have been reported as methane hydrate promoters: RHO, 13A, 13X, , 3A, and 5A. , …”