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THE EFFECT OF SURFACTANT ON THE MORPHOLOGY OF METHANE/PROPANE CLATHRATE HYDRATE CRYSTALS.

In the present study the effect of one commercially available anionic surfactant on the
formation/dissociation of hydrate from a gas mixture of 90.5 % methane – 9.5% propane mixture was
investigated. Surfactants are known to increase gas hydrate formation rate. Memory water was used and the
experiments were carried out at three different degrees of undercooling and two different surfactant
concentrations. In addition, the effect of the surfactant on storage capacity of gas into hydrate was
assessed. The morphology of the growing crystals and the gas consumption were observed during the
experiments. The results show that branches of porous fibre-like crystals are formed instead of dendritic
crystals in the absence of any additive. Finally, the addition of 2200 ppm of SDS was found to increase the
mole consumption for hydrate formation by 4.4 times.

Identiferoai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/1028
Date07 1900
CreatorsYoslim, Jeffry, Englezos, Peter
Source SetsLibrary and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada
LanguageEnglish
Detected LanguageEnglish
Typetext
RightsEnglezos, Peter

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