n-pentane and n-hexane as coguests in structure-H hydrates in mixtures of 2,2-dimethylbutane and methane

被引:20
作者
Lee, J [1 ]
Lu, HL [1 ]
Moudrakovski, IL [1 ]
Ratcliffe, CI [1 ]
Ripmeester, JA [1 ]
机构
[1] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A OR6, Canada
关键词
alkanes; clathrates; hydrates; natural gas; NMR spectroscopy;
D O I
10.1002/anie.200504366
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Room for two little ones? n-Pentane and n-hexane, previously regarded as nonhydrate forming, are found to form structure-H (sH) hydrates in mixtures with 2,2-dimethylbutane. Even though they are thought to be too large to fit into the largest cage of the sH hydrate, powder X-ray diffraction and NMR measurements show that they form gas hydrates in mixtures with other sH-hydrate formers. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2456 / 2459
页数:4
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