Lattice Expansion of Clathrate Hydrates of Methane Mixtures and Natural Gas (pages 6928–6931)
Satoshi Takeya, Tsutomu Uchida, Yasushi Kamata, Jiro Nagao, Masato Kida, Hirotsugu Minami, Hirotoshi Sakagami, Akihiro Hachikubo, Nobuo Takahashi, Hitoshi Shoji, Oleg Khlystov, Mikhail Grachev and Valery Soloviev
Article first published online: 5 OCT 2005 | DOI: 10.1002/anie.200501845
Structural transition from type I to type II is accompanied by a large increase in lattice constant a in CH4+C2H6 clathrate hydrates (see picture). In contrast, the lattice constants of CH4+CO2 clathrate hydrates are independent of composition. Data for a natural gas hydrate from the sediments of Lake Baikal are also consistent with these trends.