n-Pentane & n-Hexane as Coguests of sH Hydrates in the Mixture with 2,2-Dimethylbutane and Methane

  • Lee, Jong-Won (Dept. of Environmental Engineering, Kongju National University) ;
  • Lu, Hailong (Dept. of Environmental Engineering, Kongju National University) ;
  • Moudrakovski Igor L. (Dept. of Environmental Engineering, Kongju National University) ;
  • Ripmeester Christopher I. RatcliffeJohn A. (Steacie Institute for Molecular Sciences, National Research Council of Canada)
  • Published : 2006.11.23

Abstract

n-Pentane and n-hexane, previously regarded as non-hydrate formers, are found to form structure H hydrate in mixtures with 2,2-dimethylbutane. Even though they are thought to be too large to fit into the largest cage of the structure H hydrate, powder XRD and NMR measurements show that they form gas hydrates in mixtures with other sH hydrate former. These findings are of fundamental interest and also will impact the composition and location of natural gas hydrates and their potential as global energy resource and climate change materials.

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