@ARTICLE{Konopacka-Łyskawa_Donata_Improving_2023,
 author={Konopacka-Łyskawa, Donata and Abeto Amibo, Temesgen and Dobrzyniewski, Dominik and Łapiński, Marcin},
 volume={vol. 44},
 number={No 3 (24th Polish Conference of Chemical and Process Engineering, 13-16 June 2023, Szczecin, Poland. Guest editor: Prof. Rafał Rakoczy and 8th European Process Intensification Conference, 31.05–2.06.2023, Warsaw, Poland.)},
 journal={Chemical and Process Engineering: New Frontiers},
 pages={e16},
 howpublished={online},
 year={2023},
 publisher={Polish Academy of Sciences Committee of Chemical and Process Engineering},
 abstract={Ammonia solutions are considered to be effective solvents for carbon dioxide absorption. Despite numerous advantages of these solvents, their high volatility is a significant technical and economic problem. Therefore, in this work, silica particles were used as additives to improve CO 2 absorption and inhibit NH 3 desorption. SiO 2 microparticles and colloidal SiO 2 particles in the concentration range of 0-0.15 wt.% were used in this study. The most favorable mass transport for CO2 absorption was at the concentration of colloidal particles of 0.05 wt.%. Under these conditions, the enhancement in the number of moles of absorbed CO 2 was above 30%. However, in solvents containing 0.01 wt.% SiO2 microparticles, the increase in CO 2 absorption was about 20%. At the same time, the addition of SiO2 particles significantly reduced the escape of ammonia from the solution. The best improvement was obtained when colloidal SiO 2 particles were added, and then NH 3 escape was decreased by about 60%. This unfavorable phenomenon was also inhibited in ammonia solutions containing SiO2 microparticles at a concentration of 0.01 wt.%.},
 type={Article},
 title={Improving carbon dioxide capture in aqueous ammonia solutions by fine SiO 2 particles},
 URL={http://www.czasopisma.pan.pl/Content/128651/e16_int.pdf},
 doi={10.24425/cpe.2023.146718},
 keywords={carbon dioxide, CO2 absorption, ammonia escape, SiO2 particles, Mass transfer},
}