An Adsorbent Performance Indicator as a First Step Evaluation of Novel Sorbents for Gas Separations: Application to Metal鈥揙rganic Frameworks

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• 作者：Andrew D. Wiersum ; Jong-San Chang ; Christian Serre ; Philip L. Llewellyn
• 刊名：Langmuir
• 出版年：2013
• 出版时间：March 12, 2013
• 年：2013
• 卷：29
• 期：10
• 页码：3301-3309
• 全文大小：364K
• 年卷期：v.29,no.10(March 12, 2013)
• ISSN：1520-5827

文摘

An adsorbent performance indicator (API) is proposed in an effort to initially highlight porous materials of potential interest for PSA separation processes. This expression takes into account working capacities, selectivities, and adsorption energies and additionally uses weighting factors to reflect the specific requirements of a given process. To demonstrate the applicability of the API, we have performed the adsorption of carbon dioxide and methane at room temperature on a number of metal鈥搊rganic frameworks, a zeolite and a molecular sieve carbon. The API is calculated for two different CO₂/CH₄ separation case scenarios: 鈥渂ulk separation鈥?and 鈥渘atural gas purification鈥? This comparison highlights how the API can be more versatile than previously proposed comparison factors for an initial indication of potential adsorbent performance.