148624 20250124145432.0 doi 10.1016/j.seppur.2010.11.033 sideral 72994 ART-2011-72994 eng Zornoza, B. Universidad de Zaragoza (orcid)0000-0002-9934-1707 Hollow silicalite-1 sphere-polymer mixed matrix membranes for gas separation 2011 Access copy available to the general public Unrestricted Mixed matrix membranes (MMMs) were prepared combining two different polymers (polysulfone Udel® and polyimide Matrimid®) and hollow silicalite-1 spheres (HZSs) with about 4 μm in diameter. These HZSs were obtained by hydrothermal synthesis from solid mesoporous silica spheres (seeded with silicalite-1 nanocrystals). With filler loadings varying between 0 and 16 wt.%, the MMMs were applied to the separation of H2/CH4, CO2/N2, and O2/N2 mixtures. For all the gas pairs tested, it was found that with a loading of 8 wt.% the MMMs performed better than those prepared with pure polymer, other different loadings and conventional silicalite-1 crystals of similar size to that of the HZS diameter. The highest selectivities obtained here for H2/CH4, CO2/N2, and O2/N2 mixtures were 180 (H2 permeability = 38.4 Barrer), 41.7 (CO2 permeability = 7.2 Barrer), and 8.5 (O2 permeability = 2.8 Barrer), respectively. info:eu-repo/grantAgreement/ES/MICINN/MAT2007-61028 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.921 2011 ENGINEERING, CHEMICAL 16 / 132 = 0.121 2011 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Esekhile, O. Koros, W. J. Téllez, C. Universidad de Zaragoza (orcid)0000-0002-4954-1188 Coronas, J. Universidad de Zaragoza (orcid)0000-0003-1512-4500 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 77, 1 (2011), 137-145 Sep. Purif. Technol. Separation and Purification Technology 1383-5866 769830 http://zaguan.unizar.es/record/148624/files/texto_completo.pdf Postprint 977243 http://zaguan.unizar.es/record/148624/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:148624 articulos driver 2025-01-24-14:51:19 ARTICLE