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Environmental impact improvement of chitosan-based mixed-matrix membranes manufacture for CO2 gas separation by life cycle assessment

Abstract: The environmental impacts of the manufacture of chitosan (CS) and polymeric poly(1-trimethylsilyl-1-propyne) (PTMSP) mixed-matrix membranes (MMMs) for CO2 separation by life cycle assessment (LCA) are compared. An ionic liquid of non-reported toxicity is used in CS membranes to enhance the mechanical strength, and different fillers are used to increase mechanical and functional properties: ETS-10, ZIF-8, HKUST-1, and Zeolite A. Results with the same CO2 permeation flux indicate that ETS-10/IL-CS is the membrane manufacture with highest impacts due to its lower permeability. When comparing impacts with same permeation areas, the polymeric one is the membrane with highest impacts. Biopolymer and polymer manufacture are the components with highest contribution to the total environmental impacts of each membrane. To decrease all their impacts below fossil polymer membrane for the same CO2 permeation flux, CS membranes permeabilities should be improved by a numerical factor of 1000, 100, and 2 for the ETS-10, ZIF-8, and HKUST-1/IL-CS MMMs, respectively.

 Autoría: Echarri I., Casado-Coterillo C., Rumayor M., Navajas A., Gandía L.M.,

 Fuente: Chemical Engineering and Technology, 2023, 46(10), 2184-2191

Editorial: Wiley-VCH Verlag

 Fecha de publicación: 01/10/2023

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

 DOI: 10.1002/ceat.202200397

ISSN: 0930-7516,1521-4125

Url de la publicación: https://doi.org/10.1002/ceat.202200397

Autores/as

ECHARRI, ITSASO

NAVAJAS LEÓN, ALBERTO

LUIS GANDIA PASCUAL