Autor segons l'article: Zare, A; Boukalfa, AK; Nogalska, A; Puga, A; Cerruti, P; Pascual-Jose, B; Ribes-Greus, A; Giamberini, M
Departament: Enginyeria Química
Autor/s de la URV: Puga Vaca, Alberto / Zare, Alireza
Paraules clau: Polysulfone Polyethylene imine Phenyl isocyanate Membrane contactor Hollow-fiber membranes Direct air capture Carbon dioxide separation removal rates progress polysulfone polyethylene imine phenyl isocyanate performance morphology membrane contactor direct air capture co2 assimilation absorbents
Resum: This paper reports the preparation and characterization of asymmetric membranes for direct air capture (DAC) in polysulfone membrane contactors. In the previous studies it was found that blending the polysulfone with modified Lupasol G20 improved the polysulfone membrane performance; however, the hydrophobicity and stability of the additive require improvement for the application in gas/liquid system. In order to achieve this objective, in the current study, Lupasol G20 was grafted with phenyl isocyanate via urea linkages in a solvent-free and eco-friendly method. Membranes with different amount of the additive were prepared by phase inversion and characterized by several techniques in terms of morphology, porosity, wettability, and stability in aqueous KOH solution. Finally, CO2 solubility and mass transfer coefficient were determined and correlated with membranes’ performance in the direct air capture device. In general, it was found that the presence of the additive greatly improved the characteristics of the membranes in terms of CO2 capture efficiency and robustness, outperforming the results obtained previously. The best results for were obtained with 5% additive content reaching 0.18 [mol/m2s].
Àrees temàtiques: Waste management and disposal Química Process chemistry and technology Engineering, chemical Engenharias ii Ciências ambientais Ciência de alimentos Chemistry, multidisciplinary Chemical engineering (miscellaneous) Biodiversidade
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: alberto.puga@urv.cat alireza.zare@urv.cat
Identificador de l'autor: 0000-0003-4201-2635 0000-0002-6981-8914
Data d'alta del registre: 2024-02-17
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S2212982023002408
Referència a l'article segons font original: Journal Of Co2 Utilization. 78
Referència de l'ítem segons les normes APA: Zare, A; Boukalfa, AK; Nogalska, A; Puga, A; Cerruti, P; Pascual-Jose, B; Ribes-Greus, A; Giamberini, M (2023). Modified polyethyleneimine as additive for enhanced direct air capture via membrane contactors. Journal Of Co2 Utilization, 78(), -. DOI: 10.1016/j.jcou.2023.102629
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1016/j.jcou.2023.102629
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2023
Tipus de publicació: Journal Publications
Repositori URV