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天然ガスハイドレート結晶構造に及ぼすガスの組成とその起源 ： ロシア・バイカル湖の結晶構造Ⅱ型ハイドレートの例
八久保, 晶弘
Permalink : http://hdl.handle.net/2115/52367
Abstract
これまでに世界各地で発見されている天然ガスハイドレートの大半は結晶構造I型であるが, 天然ガス組成の多様性によって他の結晶構造をとる場合がある. 本稿では, ロシア・バイカル湖で採取された結晶構造I型・II型が共存する天然ガスハイドレートの話題を中心に紹介し, 結晶構造を決定する重要な因子であるガス組成, およびその背後にある天然ガス起源について議論する.
Almost all natural gas hydrates discovered in the world belong to the crystallographic structure I, however, other structures also exist due to variety of gas composition. In this paper, I would like to introduce a case study of double-structure gas hydrates obtained in Lake Baikal, Russia. I also discuss the variety of gas composition that controls crystallographic structure of gas hydrates, and the origin of natural gases that affects to the molecular composition.
Almost all natural gas hydrates discovered in the world belong to the crystallographic structure I, however, other structures also exist due to variety of gas composition. In this paper, I would like to introduce a case study of double-structure gas hydrates obtained in Lake Baikal, Russia. I also discuss the variety of gas composition that controls crystallographic structure of gas hydrates, and the origin of natural gases that affects to the molecular composition.
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