Novel Polymeric Thin-Film Composite Membranes for High-Temperature Gas Separations
Fynn Weigelt,
Sara Escorihuela,
Alberto Descalzo,
Alberto Tena,
Sonia Escolástico,
Sergey Shishatskiy,
Jose Manuel Serra,
Torsten Brinkmann
Affiliations
Fynn Weigelt
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
Sara Escorihuela
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
Alberto Descalzo
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
Alberto Tena
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
Sonia Escolástico
Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones, Científicas, Avda. Los Naranjos, s/n, 46022 Valencia, Spain
Sergey Shishatskiy
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
Jose Manuel Serra
Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones, Científicas, Avda. Los Naranjos, s/n, 46022 Valencia, Spain
Torsten Brinkmann
Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany
Novel selective polymeric thin-film composite membranes (TFCMs) for applications at elevated temperatures were developed. Thin selective layers of the polyimides Matrimid 5218® and 6FDA-6FpDA were cast on a developed polybenzimidazole (PBI) porous support prepared by a phase inversion process. The TFCM properties were investigated with different gases in a wide temperature range, including temperatures up to 270 °C. The membranes showed very high thermal stability and performed well at the elevated temperatures. The development of highly thermally resistant polymeric membranes such as these TFCMs opens opportunities for application in high-temperature integrated processes, such as catalytic membrane reactors for the water-gas shift reaction in order to maximize H2 yield.
