School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, USA.
ACS Appl Mater Interfaces. 2010 Nov;2(11):3363-72. doi: 10.1021/am100786z. Epub 2010 Nov 9.
Three classes of amine-functionalized mesocellular foam (MCF) materials are prepared and evaluated as CO(2) adsorbents. The stability of the adsorbents under steam/air and steam/nitrogen conditions is investigated using a Parr autoclave reactor to simulate, in an accelerated manner, the exposure that such adsorbents will see under steam stripping regeneration conditions at various temperatures. The CO(2) capacity and organic content of all adsorbents decrease after steam treatment under both steam/air and steam/nitrogen conditions, primarily due to structural collapse of the MCF framework, but with additional contributions likely associated with amine degradation during treatment under harsh conditions. Treatment with steam/air is found to have stronger effect on the CO(2) capacity of the adsorbents compared to steam/nitrogen.
三类胺功能化介孔泡沫(MCF)材料被制备并作为 CO2 吸附剂进行评估。使用 Parr 高压釜反应器在加速方式下考察了吸附剂在蒸汽/空气和蒸汽/氮气条件下的稳定性,以模拟各种温度下蒸汽汽提再生条件下吸附剂所经历的暴露情况。在蒸汽/空气和蒸汽/氮气条件下进行蒸汽处理后,所有吸附剂的 CO2 容量和有机含量都降低了,这主要归因于 MCF 骨架的结构坍塌,但在苛刻条件下处理时,胺的降解可能也有一定的贡献。与蒸汽/氮气相比,发现蒸汽/空气处理对吸附剂的 CO2 容量有更强的影响。