Abstract
Some membrane separation processes are gradually taking over conventional processes such as distillation, evaporation or crystallization as the technology progresses from bench-scale tests to large-scale prototypes. However, membranes for H2 and CO2 separation constitute a daring technology still under development. This overview focuses on mixed matrix membranes (MMMs), a special type of membranes in which a filler is dispersed in a polymer matrix, as a successful strategy to improve their permeability-selectivity performance while keeping the polymer processability. In particular, among all the possible fillers for MMMs, layered materials (porous zeolites and titanosilicates and graphite derivatives) are discussed in detail due to the several advantages they offer regarding selective microporosity, crystallinity and, what is most important, high specific surface area and aspect ratio. In fact, a selective and as thin as possible, i.e. with high aspect ratio, filler would help to develop high performance MMMs.
Keywords: Gas separation, graphene oxide, graphene, graphite, layered material, mixed matrix membrane, titanosilicate, zeolite.
Current Organic Chemistry
Title:Separation of H2 and CO2 Containing Mixtures with Mixed Matrix Membranes Based on Layered Materials
Volume: 18 Issue: 18
Author(s): Cesar Rubio, Beatriz Zornoza, Patricia Gorgojo, Carlos Tellez and Joaquin Coronas
Affiliation:
Keywords: Gas separation, graphene oxide, graphene, graphite, layered material, mixed matrix membrane, titanosilicate, zeolite.
Abstract: Some membrane separation processes are gradually taking over conventional processes such as distillation, evaporation or crystallization as the technology progresses from bench-scale tests to large-scale prototypes. However, membranes for H2 and CO2 separation constitute a daring technology still under development. This overview focuses on mixed matrix membranes (MMMs), a special type of membranes in which a filler is dispersed in a polymer matrix, as a successful strategy to improve their permeability-selectivity performance while keeping the polymer processability. In particular, among all the possible fillers for MMMs, layered materials (porous zeolites and titanosilicates and graphite derivatives) are discussed in detail due to the several advantages they offer regarding selective microporosity, crystallinity and, what is most important, high specific surface area and aspect ratio. In fact, a selective and as thin as possible, i.e. with high aspect ratio, filler would help to develop high performance MMMs.
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Cite this article as:
Rubio Cesar, Zornoza Beatriz, Gorgojo Patricia, Tellez Carlos and Coronas Joaquin, Separation of H2 and CO2 Containing Mixtures with Mixed Matrix Membranes Based on Layered Materials, Current Organic Chemistry 2014; 18 (18) . https://dx.doi.org/10.2174/1385272819666140806201132
DOI https://dx.doi.org/10.2174/1385272819666140806201132 |
Print ISSN 1385-2728 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5348 |
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