エタンとエチレンの分離のためのゼオライトのフレームフレキシビリティと孔のトポロジーの制御
Pablo J Bereciartua1, Ángel Cantín1, Avelino Corma2
1Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain.
Science (New York, N.Y.)
|November 25, 2017
まとめ
研究者はエチレンとエタンを分離するための新しいゼオライト材料を開発し,従来の方法よりも重要なエネルギー節約を実現しました. この高度な材料は,工業用途の高度な選択分離を提供します.
科学分野:
- 材料科学
- 化学工学
- 吸収科学
背景:
- エチレンとエタンの分離は工業プロセスにおいて極めて重要であり,通常はエネルギー密集型冷凍蒸留によって達成される.
- 吸収などの代替分離方法の開発は,大幅なエネルギー節約につながります.
- エチレンとエタンを効率的かつ選択的に分離するには新しい材料が必要です.
研究 の 目的:
- ITQ-55と指定された新しい柔軟な純粋なシリカゼオライトを合成し,構造的に特徴づけること.
- エチレンとエタンの運動分離のためのITQ-55の性能を評価する.
- エネルギー効率の良い 分子分離のためのこの材料の可能性を調査する.
主な方法:
- 柔軟な純粋シリカゼオライト (ITQ-55) の合成
- 先進的な特徴化技術を用いた構造的決定.
- エチレン/エタンの混合物の分離性能を評価するための吸着実験.
主要な成果:
- ITQ-55ゼオライトの合成と構造の解明が成功しました.
- ITQ-55は,エチレンとエタンを分離する際の特殊な運動選択性 (~100) を示した.
- この素材の独特な孔状のトポロジーと柔軟性は,その高い分離効率に貢献しています.
結論:
- 柔軟なITQ-55ゼオライトは,分子分離のための材料の重要な進歩を表しています.
- この材料は,エチレン/エタンの分離のための冷凍蒸留に非常に選択的で,潜在的に省エネな代替手段を提供します.
- この発見は,工業的な分離プロセスにおけるゼオライトの応用範囲を拡大します.
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