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Resumen: Mixed matrix membranes (MMMs) prepared with 6FDA-DAM polymer using ordered mesoporous silica MCM-41 spheres (MSSs), Grignard surface functionalized MSSs (Mg-MSSs) and hollow zeolite spheres are studied to evaluate the effects of surface modification on performance. Performance near or above the so-called permeability-selectivity trade-off curve was achieved for the H2/CH4, CO2/N2, CO2/CH4, and O2/N2 systems. Two loadings (8 wt % and 16 wt %) of MSSs were tested using both constant volume and Wicke-Kallenbach sweep gas permeation systems. Besides single gas H2, CO2, O2, N2, and CH4 tests, mixed gas (50/50 vol %) selectivities were obtained for H2/CH4, CO2/N2, CO2/CH4, and O2/N2 and found to show enhancements vs. single gases for CO2 including cases. Mg-MSS/6FDA-DAM was the best performing MMM with H2/CH4, CO2/N2, CO2/CH4, and O2/N2 separation selectivities of 21.8 (794 Barrer of H2), 24.4 (1214 Barrer of CO2), 31.5 (1245 Barrer of CO2), and 4.3 (178 Barrer of O2), respectively.
Idioma: Inglés
DOI: 10.1002/aic.15011
Año: 2015
Publicado en: AIChE Journal 61, 12 (2015), 4481-4490
ISSN: 0001-1541
Factor impacto JCR: 2.98 (2015)
Categ. JCR: ENGINEERING, CHEMICAL rank: 23 / 135 = 0.17 (2015) - Q1 - T1
Factor impacto SCIMAGO: 1.085 - Biotechnology (Q1) - Environmental Engineering (Q1) - Chemical Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2013-40566-R
Tipo y forma: Artículo (PostPrint)
Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)

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