Elfving (2021): Direct capture of CO2 from air using amine-functionalized resin – Effect of humidity in modelling and evaluation of process concepts
Jere Elfving; Dissertation for the degree of Doctor of Science (Technology), Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland; 17th of December, 2021; 195 pp.
In this work, the performance of an amino resin for CO2 capture was studied experimentally in a wide range of conditions. Humidity and cold conditions were found to nearly double the experimental CO2 adsorption capacity of the studied amino resin in some cases. Based on a working capacity analysis using isotherm modelling, the typically proposed DAC process using temperature and vacuum swing adsorption (TVSA) with a closed inlet is severely limited in terms of CO2 working capacity.