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Melt compounding of swollen titanosilicate JDF-L1 with polysulfone to obtain mixed matrix membranes for H2/CH4 separation

Abstract: JDF-L1 is a microporous layered titanosilicate. JDF-L1-based composite materials have been prepared by melt compounding commercial polysulfone together with swollen JDF-L1 at a temperature gradient of 303-340 °C. During the melt compounding process most of the swollen JDF-L1 was exfoliated, confirmed by thermal, TEM, and XRD analyses. The exfoliated JDF-L1/polysulfone master batch was diluted in polysulfone to obtain mixed matrix membranes (MMMs) with inorganic loadings in the 0-9.5 wt % range, in which exfoliated JDF-L1 particles were well dispersed. The MMMs were applied to the separation of a H2/CH4 mixture with an improved performance as compared to the pure polymer or to chemically exfoliated JDF-L1/polysulfone membranes. The best performance obtained in this work corresponds to an 8.3 wt % MMM with H2 permeability and H2/CH4 selectivity of 12.5 Barrer and 128, respectively.

 Autoría: Castarlenas S., Gorgojo P., Casado-Coterillo C., Masheshwari S., Tsapatsis M., Téllez C., Coronas J.,

 Fuente: Industrial and Engineering Chemistry Research, 2013, 52(5), 1901-1907

 Editorial: American Chemical Society

 Fecha de publicación: 06/02/2013

 Nº de páginas: 7

 Tipo de publicación: Artículo de Revista

 DOI: 10.1021/ie3031136

 ISSN: 0888-5885,1520-5045

 Proyecto español: MAT2010-15870 ; CIT-420000-2009-32

 Url de la publicación: https://doi.org/10.1021/ie3031136

Autoría

CASTARLENAS SOBREVIELA, SONIA

PATRICIA GORGOJO ALONSO

MASHESHWARI, SUDEEP

TSAPATSIS, MICHAEL

TÉLLEZ ARISO, CARLOS

JOAQUIN CORONAS CERESUELA