(58e) The Influence of Water on Polymer/Silica Hollow Fiber Sorbents for CO2/N2 Sorption

The Influence of Water on Polymer/Silica Hollow Fiber Sorbents for CO₂/N₂ Sorption

Ying Labreche, Steven K Burgess, Ryan P. Lively, Christopher W. Jones*, William J. Koros*

 Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100, USA   Abstract Rapid Temperature Swing Adsorption (RTSA) processes offer potential techniques for the capture of CO₂ from flue gas mixtures. Understanding the interactions between the numerous gas phase components and the sorbent material is necessary to develop high performance sorbents for this application. Moisture is commonly present in flue gas applications and can interfere with or alter the mechanisms involved in the adsorption of CO₂ and other gases, so understanding effects of moisture is of particular importance. In this study, we consider the influence on equilibrium water vapor sorption and CO₂ capacity of different amine loaded silica/polymer hollow fiber composites. The advantage of different polymer binders (cellulose acetate vs. Torlon, a poly(amide-imide)) for the silica particles, as the well the impact of an amine dispersant, glycerol, are discussed in detail.