Carbon Dioxide Capture from the Air Using a Polyamine Based Regenerable Solid Adsorbent

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• 作者：Alain Goeppert ; Miklos Czaun ; Robert B. May ; G. K. Surya Prakash ; George A. Olah ; S. R. Narayanan
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：December 21, 2011
• 年：2011
• 卷：133
• 期：50
• 页码：20164-20167
• 全文大小：232K
• 年卷期：v.133,no.50(December 21, 2011)
• ISSN：1520-5126

文摘

Easy to prepare solid materials based on fumed silica impregnated with polyethylenimine (PEI) were found to be superior adsorbents for the capture of carbon dioxide directly from air. During the initial hours of the experiments, these adsorbents effectively scrubbed all the CO₂ from the air despite its very low concentration. The effect of moisture on the adsorption characteristics and capacity was studied at room temperature. Regenerative ability was also determined in a short series of adsorption/desorption cycles.