Dynamics of CO 2 Adsorption on Amine Adsorbents. 1. Impact of Heat Effects

Bollini, Praveen; Brunelli, Nicholas A.; Didas, Stephanie A.; Jones, Christopher W.

Dynamics of CO 2 Adsorption on Amine Adsorbents. 1. Impact of Heat Effects

Type

Article

Authors

Bollini, Praveen
Brunelli, Nicholas A.
Didas, Stephanie A.
Jones, Christopher W.

KAUST Grant Number

KUSII-011-21

Online Publication Date

2012-11-06

Print Publication Date

2012-11-21

Date

2012-11-06

Abstract

The packed bed heat and mass transfer dynamics of CO2 adsorption onto a 3-aminopropylsilyl-functionalized SBA-15 silica material are reported. Concentration measurements at the outlet of the packed bed and temperature profiles inside the bed are measured simultaneously. Heat and mass transfer models in conjunction with the linear driving force rate model are used to simulate the concentration and temperature profiles in the bed. The heat and mass transfer processes in the amine adsorbent packed bed are successfully captured by the model, and comparison of isothermal and nonisothermal models reveals that isothermal models provide an accurate description of the dynamic mass transport behavior in the adsorption column under the experimental conditions used in this study. The results help establish that under certain experimental conditions, heat effects in amine adsorbent packed beds have a negligible effect on CO2 breakthrough, and simple isothermal models can be used to accurately assess adsorption kinetics. © 2012 American Chemical Society.

Citation

Bollini P, Brunelli NA, Didas SA, Jones CW (2012) Dynamics of CO 2 Adsorption on Amine Adsorbents. 1. Impact of Heat Effects . Ind Eng Chem Res 51: 15145–15152. Available: http://dx.doi.org/10.1021/ie301790a.

Acknowledgements

This publication is based on work supported by Award KUSII-011-21, made by King Abdullah University of Science and Technology (KAUST). P.B. would like to thank Dr. Yoshiaki Kawajiri and Jason Bentley for access to gPROMS.