Surfactant Enhanced Methane Hydrate Growth in Quiescent Sodium Chloride Solutions

Methane hydrate growth was investigated in solutions of between 0 and 10 wt\% NaCl in the presence of the surfactants sodium dodecyl sulfate, potassium dodecyl sulfate, and sodium laurate. Total amount of water converted to hydrate and total rate of hydrate formation were both found to greatly decre...

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Bibliographic Details
Main Author: Eastman, Mason Jackson
Format: Doctoral or Postdoctoral Thesis
Language:English
Published: eScholarship, University of California 2016
Subjects:
Online Access:http://www.escholarship.org/uc/item/1b35h02g
http://n2t.net/ark:/13030/m51594mj
Description
Summary:Methane hydrate growth was investigated in solutions of between 0 and 10 wt\% NaCl in the presence of the surfactants sodium dodecyl sulfate, potassium dodecyl sulfate, and sodium laurate. Total amount of water converted to hydrate and total rate of hydrate formation were both found to greatly decrease with increased NaCl concentration in the presence of all surfactants tested. Different salinity-depenent patterns of growth were observed. Latent heat of hydrate formation was directly measured with deionized water containing sodium dodecyl sulfate. These results could provide a template for a hydrate-based desalination system.