Zeolites as Selective Adsorbents for CO2 Separation,ACS Applied Energy Materials

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Zeolites as Selective Adsorbents for CO2 Separation
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2023-02-21 , DOI: 10.1021/acsaem.2c03605
Dina G. Boer _{1,

2} , Jort Langerak ₂ , Paolo P. Pescarmona ₁

Affiliation

Zeolites are a very versatile class of materials that can display selective CO₂ adsorption behavior and thus find applications in carbon capture, storage, and utilization (CCSU). In this contribution, the properties of zeolites as CO₂ adsorbents are reviewed by critically presenting and discussing their assets and limitations. For this purpose, we first provide an overview of the CO₂ adsorption mechanisms on different types of zeolites. Then, we systematically discuss the relationship between the physicochemical properties of zeolites (framework type, Si/Al ratio, and extra-framework cations) and their performance as CO₂ adsorbents for the separation of CO₂/CH₄ (biogas) and CO₂/N₂ (flue gas) mixtures. Based on the trends and properties identified, we provide a comparison of the different zeolites and highlight their advantages and drawbacks for applicability in CO₂ adsorption. Finally, we present the state of the art in the shaping of zeolites in macroscopic format, which is a key step toward their industrial utilization as adsorbents.

中文翻译：

沸石作为 CO2 分离的选择性吸附剂

沸石是一类用途非常广泛的材料，可以表现出选择性的 CO ₂吸附行为，因此可应用于碳捕获、储存和利用 (CCSU)。在这篇文章中，通过批判性地介绍和讨论沸石的优点和局限性，回顾了沸石作为 CO ₂吸附剂的特性。为此，我们首先概述了CO ₂在不同类型沸石上的吸附机制。然后，我们系统地讨论了沸石的物理化学性质（骨架类型、Si/Al 比和骨架外阳离子）与其作为 CO 2 吸附剂分离 CO 2 /CH 4（沼气_）和_CO的_性能之间的关系₂ /N ₂（烟气）混合物。_{基于确定的趋势和特性，我们对不同的沸石进行了比较，并强调了它们在 CO 2}吸附适用性方面的优缺点。最后，我们以宏观形式介绍了沸石成型的最新技术，这是将其作为吸附剂工业化利用的关键一步。

更新日期：2023-02-21

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