Solid adsorbents for CO2 separation

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Concern about global warming has sparked interest in the potential of solid adsorbents to capture CO2 from large emission sources such as fossil-fuel power stations. Adsorbents that have been considered include carbons, zeolites, mesoporous silico-aluminates, metal organic frameworks (MOFs), together with materials that have been further modified by the incorporation of (usually) amines. In the former cases separation is achieved via physisorption phenomena, whereas with the latter materials it is via a chemisorption mechanism. The objective of adsorbent development is to tailor materials that have a high and reversible capacity for CO2 adsorption, high selectivity over N2, tolerance to H2O and trace impurities in the feed gas stream. Sequestration ready CO2 can be recovered using a temperature or pressure swing. The presentation will focus on the attributes and weaknesses of the various adsorbent types for CO2 separation under various process conditions and on strategies to improve these sought-after characteristics.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - 2009
EventACS National Meeting 2009 - Washington, United States of America
Duration: 16 Aug 200920 Aug 2009
Conference number: 238th


ConferenceACS National Meeting 2009
Country/TerritoryUnited States of America
Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009

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