New mixed matrix membranes for gas separation have been prepared embedding aminated, short mesopore channels, platelet SBA-15 particles in SBS up to 10 wt%. The high surface density of 3-aminopropyl grafts (3.8 nm-2) and modest surface area reduction (45%) of SBA-15 imparts outstanding performances in terms of permeability and CH4/N2 (7.3) and CO2/N2 (53) selectivitySuch membranes may enable the exploitation of natural gas with high N2 content and increase the amount of methane that can be economically recovered, and are of interest also for the post-combustion capture of carbon dioxide.The small and flat SBA-15 particles lend themselves to the fabrication of thin industrial membranes with enhanced productivity
Amine-functionalized SBA-15 in poly(styrene-b-butadiene-b-styrene) (SBS) yields permeable and selective nanostructured membranes for gas separation
Buonomenna Maria Giovanna
;Golemme Giovanni
;Tone Caterina Maria;De Santo Maria Penelope;Ciuchi Federica;Perrotta Enrico
2013-01-01
Abstract
New mixed matrix membranes for gas separation have been prepared embedding aminated, short mesopore channels, platelet SBA-15 particles in SBS up to 10 wt%. The high surface density of 3-aminopropyl grafts (3.8 nm-2) and modest surface area reduction (45%) of SBA-15 imparts outstanding performances in terms of permeability and CH4/N2 (7.3) and CO2/N2 (53) selectivitySuch membranes may enable the exploitation of natural gas with high N2 content and increase the amount of methane that can be economically recovered, and are of interest also for the post-combustion capture of carbon dioxide.The small and flat SBA-15 particles lend themselves to the fabrication of thin industrial membranes with enhanced productivityI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
