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Enabling experimental characterization and prediction of ternary mixed-gas sorption in polymers: C2H6/CO2/CH4 in PIM-1
- Source :
- Ricci, E, Benedetti, F M, Noto, A, Merkel, T, Jin, J & De Angelis, G 2021, ' Enabling experimental characterization and prediction of ternary mixed-gas sorption in polymers: C2H6/CO2/CH4 in PIM-1 ', Chemical Engineering Journal, vol. 426, 130715, pp. 1 . https://doi.org/10.1016/j.cej.2021.130715
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- In this work, a new experimental protocol was designed to measure sorption of ternary gas mixtures in polymer membranes for the first time. We measured the sorption isotherms of binary and ternary mixtures of C2H6, CO2, and CH4 in PIM-1, using a pressure decay apparatus, working at constant composition and variable pressure of the gas phase. The results show competitive sorption effects in all gas mixtures analyzed, affecting each species in proportion to the total sorbed concentration of the other components. It was found that the presence of C2H6 in the mixture reduces the sorption of both CH4 and CO2 to a similar extent, so that the CO2/CH4 solubility-selectivity is not markedly affected. The experimental data were used to validate predictions of the Non-Equilibrium Lattice Fluid (NELF) model of binary and ternary sorption isotherms. The NELF model is generally in close agreement, both in the prediction of pressure and mixture composition effects, proving to be a reliable tool to assess mixed-gas sorption, even in complex scenarios.
- Subjects :
- Work (thermodynamics)
Materials science
General Chemical Engineering
Synthetic membrane
Thermodynamics
02 engineering and technology
010402 general chemistry
01 natural sciences
MULTICOMPONENT ADSORPTION EQUILIBRIA
Industrial and Manufacturing Engineering
Environmental Chemistry
CO2 CAPTURE
Gas separation
Ternary mixtures
chemistry.chemical_classification
Ethane
Mixed-gas sorption
NELF model
Sorption
General Chemistry
Polymer
021001 nanoscience & nanotechnology
0104 chemical sciences
Characterization (materials science)
Membrane
chemistry
membranes
0210 nano-technology
Ternary operation
Subjects
Details
- ISSN :
- 13858947
- Volume :
- 426
- Database :
- OpenAIRE
- Journal :
- Chemical Engineering Journal
- Accession number :
- edsair.doi.dedup.....4906b3b61ce21cd46508f8726874a9d6