@article{10902/34038,
year = {2024},
month = {5},
url = {https://hdl.handle.net/10902/34038},
abstract = {In the pursuit of advanced carbon capture methods, ionic liquid (IL)-based membranes have emerged as promising materials for CO2 separation due to their high permeation and selectivity. This research focuses on the development of composite membranes with highly CO2 selective ethanolamine-based ionic liquids and poly(vinyl alcohol) (PVA). ILs and membranes were characterized by water content, FT-IR, 1H, and 13C NMR. The addition of ethanolamine-based ILs and stream humidification promoted an outstanding increase of PVA membranes’ CO2 permeability and CO2/CH4 selectivity of 53× and 36×, respectively. Effects of transmembrane pressure (1.0 to 3.0 barg), temperature (313.15 to 343.15 K), and CO2:CH4 ratio (10 to 40%) were studied. Effects of IL’s cations and alkyl chain length (anion) on CO2 separation performance were studied via the production of PVA membranes with seven ethanolamine-based ILs. CO2 permeabilities up to 209 barrer and selectivities up to 241 were obtained. The comparison of these membranes with some of the most promising materials in the literature indicates that the ethanolamine-based ILs + PVA membranes have moderate CO2 permeabilities, associated with outstanding CO2/CH4 selectivities.},
organization = {The authors gratefully acknowledge the support from FAPESB(Project APP0075/2016), CAPES (Coordination for theImprovement of Higher Education Personnel)/Brazil (PDSE-88881.132805/2016-01), process no. 2021/07155-6, ResearchSupport Foundation of the State of Sã o Paulo (FAPESP) and,National Council for Scientific and Technological Develop-ment/Brazil (CNPq) (grant PQ-311342/2022-1 for S.M. andPQ-310051/2022-3 for L.M.L.). Grammarly and Chat GPT4.0 tools were used herein to correct grammar and increase thereadability of the original manuscript. The prompt used onchat GPT 4.0 was the following: “Correct the grammar andincrease the readability of this academic manuscript. Do notperform any additional modification, nor add or modify anyinformation on the original manuscript. Maintain the originalmeaning.″},
publisher = {American Chemical Society},
publisher = {Industrial and Engineering Chemistry Research, 2024, 63(18), 8306-8318},
title = {Highly selective CO2/CH4 membranes based on ethanolamine ionic liquids},
author = {Leite Alcantara, Murilo and Almeida Ribeiro Oliveira, Gerlon de and Morais Lião, Luciano and Ortiz Sainz de Aja, Alfredo and Mattedi, Silvana},
}