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首页> 外文期刊>Environmental Science & Technology >Moisture Swing Sorbent for Carbon Dioxide Capture from Ambient Air
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Moisture Swing Sorbent for Carbon Dioxide Capture from Ambient Air

机译：潮气吸收剂，用于从环境空气中捕获二氧化碳

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摘要

An amine-based anion exchange resin dispersed in a flat sheet of polypropylene was prepared in alkaline forms so that it would capture carbon dioxide from air. The resin, with quaternary ammonium cations attached to the polymer structure and hydroxide or carbonate groups as mobile counterfoils, absorbs carbon dioxide when dry and releases it when wet In ambient air, the moist resin dries spontaneously and subsequently absorbs carbon dioxide. This constitutes a moisture induced cycle, which stands in contrast to thermal pressure swing based cycles. This paper aims to determine the isothermal performance of the sorbent during such a moisture swing. Equilibrium experiments show that the absorption and desorption process can be described well by a Langmuir isothermal model. The equilibrium partial pressure of carbon dioxide over the resin at a given loading state can be increased by 2 orders of magnitude by wetting the resin.
机译：以碱性形式制备分散在聚丙烯平板中的基于胺的阴离子交换树脂，以使其能够捕获空气中的二氧化碳。带有季铵阳离子附着在聚合物结构上的氢氧化物或碳酸酯基团作为可移动反箔的树脂，在干燥时吸收二氧化碳，在湿润时释放二氧化碳。在潮湿的空气中，潮湿的树脂自发干燥并随后吸收二氧化碳。这构成了湿气诱导的循环，这与基于热压力摆动的循环形成对比。本文旨在确定这种水汽波动过程中吸附剂的等温性能。平衡实验表明，吸收和解吸过程可以用Langmuir等温模型很好地描述。通过润湿树脂，在给定的加载状态下，树脂上的二氧化碳平衡分压可以增加2个数量级。

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  • 来源
    《Environmental Science & Technology》 |2011年第15期|p.6670-6675|共6页
  • 作者

    Tao Wang; Klaus S. Lackner; Allen Wright;

  • 作者单位

    'Earth Institute and Department of Earth and Environmental Engineering, Columbia University, 1038 Mudd Building, S00 West 120th Street, New York, NY 10027;

    'Earth Institute and Department of Earth and Environmental Engineering, Columbia University, 1038 Mudd Building, S00 West 120th Street, New York, NY 10027;

    'Earth Institute and Department of Earth and Environmental Engineering, Columbia University, 1038 Mudd Building, S00 West 120th Street, New York, NY 10027;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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