132493 20250109150035.0 doi 10.1016/j.seppur.2023.125329 sideral 137614 ART-2023-137614 eng Pérez Miana, Marta Universidad de Zaragoza (orcid)0000-0001-8572-1760 Highly permeable ZIF-8 membranes for C2H4/C2H6 separation in a wide temperature range 2023 Access copy available to the general public Unrestricted Ethylene/ethane separation is a critical and energy-consuming process in the chemical industry due to the similar properties of the compounds and the great need of ethylene for e.g., polymer production. Many materials have been studied for their implementation as membranes as an energetically favorable alternative to conventional distillation and adsorption processes. Metal-organic frameworks (MOF) have revealed promising properties as highly permeable and selective membranes. Among the most studied and promising MOF candidates is ZIF-8, known for its thermal stability and small pores connected by narrow-sized windows. In this work, we present an analysis of the influence of parameters such as temperature, feed pressure and feed flowrate on the separation of ethylene/ethane through a thin ZIF-8/alumina disc membrane. We observed that the temperature has a significant effect on the separation. The ethylene permeance increased with decreased temperature and reached 8.1 × 10−7 mol/(m2·s·Pa) at −30 °C. At this temperature, the ethylene/ethane selectivity was 2.5. The study concluded with a considerable enhancement of the permeance of ZIF-8 membranes for ethylene/ethane separations, while maintaining a good selectivity compared to the reported values in the literature. The results have important implications for the development of more cost-effective and energy-efficient membrane-based separation technologies for ethylene purification. info:eu-repo/grantAgreement/ES/DGA/T68-23R info:eu-repo/grantAgreement/ES/MCIN-AEI/PID2019-104009RB-I00-AEI-10.13039-501100011033 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 8.2 2023 ENGINEERING, CHEMICAL 15 / 170 = 0.088 2023 Q1 T1 1.533 2023 Filtration and Separation 2023 Q1 Analytical Chemistry 2023 Q1 14.0 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Coronas, Joaquín Universidad de Zaragoza (orcid)0000-0003-1512-4500 Hedlund, Jonas Yu, Liang 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 330, Part A (2023), 125329 Sep. Purif. Technol. Separation and Purification Technology 1383-5866 3110694 http://zaguan.unizar.es/record/132493/files/texto_completo.pdf Versión publicada 2517515 http://zaguan.unizar.es/record/132493/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:132493 articulos driver 2025-01-09-14:59:07 ARTICLE