用于高温气体分离的新型聚合物薄膜复合膜

Novel Polymeric Thin-Film Composite Membranes for High-Temperature Gas Separations.

作者信息

Weigelt Fynn, Escorihuela Sara, Descalzo Alberto, Tena Alberto, Escolástico Sonia, Shishatskiy Sergey, Serra Jose Manuel, Brinkmann Torsten

机构信息

Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany.

Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones, Científicas, Avda. Los Naranjos, s/n 46022 Valencia, Spain.

出版信息

Membranes (Basel). 2019 Apr 10;9(4):51. doi: 10.3390/membranes9040051.

DOI:10.3390/membranes9040051

PMID:30974909

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6523132/

Abstract

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.

摘要

开发了用于高温应用的新型选择性聚合物薄膜复合膜（TFCM）。将聚酰亚胺Matrimid 5218和6FDA-6FpDA的薄选择层浇铸在通过相转化过程制备的开发的聚苯并咪唑（PBI）多孔支撑体上。在很宽的温度范围内，包括高达270°C的温度下，用不同气体对TFCM的性能进行了研究。这些膜表现出非常高的热稳定性，并且在高温下性能良好。像这些TFCM这样的高耐热聚合物膜的开发为高温集成过程中的应用提供了机会，例如用于水煤气变换反应以最大化H₂产率的催化膜反应器。