Journal of Oleo Science
Online ISSN : 1347-3352
Print ISSN : 1345-8957
ISSN-L : 1345-8957
The 2nd Asian Conference on Oleo Science (ACOS 2017)
Roles of Sodium Dodecyl Sulfate on Tetrahydrofuran-Assisted Methane Hydrate Formation
Atsadawuth SiangsaiKatipot InkongSanti KulprathipanjaBoonyarach KitiyananPramoch Rangsunvigit
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2018 Volume 67 Issue 6 Pages 707-717

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Abstract

Sodium dodecyl sulfate (SDS) markedly improved tetrahydrofuran (THF) – assisted methane hydrate formation. Firstly, methane hydrate formation with different THF amount, 1, 3, and 5.56 mol%, was studied. SDS with 1, 4, and 8 mM was then investigated for its roles on the methane hydrate formation with and without THF. The experiments were conducted in a quiescent condition in a fixed volume crystallizer at 8 MPa and 4°C. The results showed that almost all studied THF and SDS concentrations enhanced the methane hydrate formation kinetics and methane consumption compared to that without the promoters, except 1 mol% THF. Although, with 1 mol% THF, there were no hydrates formed for 48 hours, the addition of just 1 mM SDS surprisingly promoted the hydrate formation with a significant increased in the kinetics. This prompts the use of methane hydrate technology for natural gas storage application with minimal promoters.

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© 2018 by Japan Oil Chemists' Society
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