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Polymer–Ceramic Composite Membranes for Water Removal in Membrane Reactors


Methanol can be obtained through CO2 hydrogenation in a membrane reactor with higher yield or lower pressure than in a conventional packed bed reactor. In this study, we explore a new kind of membrane with the potential suitability for such membrane reactors. Silicone–ceramic composite membranes are synthetized and characterized for their capability to selectively remove water from a mixture containing hydrogen, CO2, and water at temperatures typical for methanol synthesis. We show that this membrane can achieve selective permeation of water under such harsh conditions, and thus is an alternative candidate for use in membrane reactors for processes where water is one of the products and the yield is limited by thermodynamic equilibrium.

Funding source: Ministry of Economy and Competitiveness (Spain) for the financial support for the projects CTQ2016-76533-R and PID2019-106196RB-I00.
Countries: Spain

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