Catalog Home Page

CO2 capture by amine-modified materials, tailored for enhanced adsorption capacity and selectivity

Ahmad, K., Kennedy, E.M., Dlugogorski, B., Mackie, J.C. and Stockenhuber, M. (2014) CO2 capture by amine-modified materials, tailored for enhanced adsorption capacity and selectivity. In: CHEMECA 2014, 28 September - 1 October, Perth, Western Australia Paper 1427.

[img]
Preview
Free to read: http://www.icheme.org/~/media/Documents/Conference...
*No subscription required

Abstract

We have modified zeolite Na-Y (Si/Al = 2.55) with triethylenetetramine (TETA), using a wet - impregnation method, with the aim of synthesising a hybrid material with enhanced CO2 adsorption capacity and selectivity, in the presence of water vapour. The dynamic adsorption capacity of CO2 on NaY-TETA, prepared with varying loadings of amine, was examined. Following modification, the surface properties of the adsorbent were changed, as evident by examining the adsorption and desorption isotherms of CO2 from wet gas streams. The modified materials display excellent CO2 uptake under humid conditions. A mechanism describing the interaction of CO2 on the surface suggests a transformation from a mainly physical to chemical bonding due to modification of the surface functional groups on TETA. In addition, multicyclic use of NaY-TETA suggests that it could be an ideal sorbent for CO2 capture from flue gases.

Publication Type: Conference Paper
Murdoch Affiliation: School of Engineering and Information Technology
URI: http://researchrepository.murdoch.edu.au/id/eprint/28533
Item Control Page Item Control Page

Downloads

Downloads per month over past year