メタンは,乾水ガス水化合物の中に貯蔵されます

Weixing Wang¹, Christopher L Bray, Dave J Adams

¹Department of Chemistry and Centre for Materials Discovery, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom.

Journal of the American Chemical Society

|August 8, 2008

まとめ

ドライウォーターは,シリカで安定した粉末で,メタンを水酸化物として効率的に貯蔵し,エネルギー省の体積目標に近づいています. その高い表面積は,混合することなくメタンの迅速な吸収を可能にします.

科学分野:

マテリアルサイエンス材料科学
化学工学は化学工学というものです.
エネルギー貯蔵エネルギー貯蔵

背景:

メタンの貯蔵は,天然ガスの用途において極めて重要です.
既存の貯蔵方法は,体積密度と効率の面で課題に直面しています.
効率的なメタンの貯蔵のための新しい材料の開発は,進行中の研究分野です.

研究の目的:

メタンの貯蔵のための材料として乾いた水を評価する.
メタンの貯蔵容量と乾水の吸収率を決定する.
エネルギー貯蔵目標を達成するための乾水の可能性を評価する.

主な方法:

シリカで安定した乾水を利用し,重量の95%の水からなる粉末.
特定の圧力および温度条件 (2.7 MPaと273.2 K) の下で水素の形でメタンの貯蔵を調査する.
メタンの吸収運動と最終貯蔵容量を測定する.

主要な成果:

ドライウォーターは,標準温度と圧力 (STP) のメタン1体あたり175ボリュームのメタン貯蔵容量を達成しました.
この容量は,エネルギー省のメタンの貯蔵量目標に匹敵する.
メタンの迅速な吸収が観察され,混ぜることなく160分で90%の飽和度に達しました.

結論:

乾水は,高容量メタンの貯蔵材料としての大きな可能性を示しています.
表面と体積の高い比率を含む材料の性質は,ガスの迅速な吸収を促進します.
乾いた水は,メタンの貯蔵技術の進歩に有望な道を提供します.

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