Rapid Clathrate Hydrate Formation Using a Heavy Guest Molecule with Sodium Dodecyl Sulfate

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Clathrate hydrates provide porous structures for encaging gas molecules at a high volume ratio (v/v) and can be exploited to improve industrial gas storage and transportation. Direct clathrate hydrate formation from liquid water without mechanical agitation has yielded very low conversion rates due to the mass-transfer limitation between phases. In the present study, the heavy guest molecule of iodomethane was introduced to achieve both rapid clathrate hydrate formation and a high conversion rate. Iodomethane showed full enclathration in water cages in a few minutes and even accelerated the full conversion to a mixed hydrate (sII hydrates) with methane to 1.5 min by renewing liquid-iquid interfaces without mechanical agitation. The interfacial renewal at the growth front will contribute to developing a cost-effective method for natural gas storage and transportation in a clathrate hydrate form.
Publisher
AMER CHEMICAL SOC
Issue Date
2016-06
Language
English
Article Type
Article
Keywords

METHYL-IODIDE; INTERFACIAL-TENSION; METHANE; WATER; SURFACTANTS; TETRAHYDROFURAN; ADSORPTION; CYCLOPENTANE; EQUILIBRIUM; STORAGE

Citation

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.55, no.21, pp.6079 - 6084

ISSN
0888-5885
DOI
10.1021/acs.iecr.6b01286
URI
http://hdl.handle.net/10203/209827
Appears in Collection
CBE-Journal Papers(저널논문)
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