(543f) The Interaction Between SrFeCo0.5Ox(SFC) Ceramic Membrane and the Catalyst Pt/CeZrO2 for Syngas Production from Methane

Non-porous oxygen-conducting ceramic membranes with mixed ionic and electronic conductivity (MIECs) have received significant interest for use as oxygen suppliers in membrane reactor systems as a way to eliminate costly air separation steps and to achieve staged addition of oxygen. Our previous studies, which focused on the use of SFC dense ceramic membranes for the partial oxidation of methane at 800°C, have shown that the presence of the catalyst Pt/CeZrO2 on the surface of an SFC membrane can give higher methane conversion compared to the methane conversion in the presence of other catalysts like Pt/ZrO2. However, the roles of ceramic membrane in the enhancement of this reaction and the interaction between SFC and the catalyst have not been investigated yet. This work presents the results form studies undertaken to clarify the role of SFC ceramic membrane in the enhancement of catalytic conversion of methane to syngas through a series of pulse studies at 800°C. It was found out that mixing pattern of SFC and the catalyst and the mass ratio of SFC to the catalyst is playing an important role for obtaining higher methane conversions. The highest conversion was obtained at mass ratio of one while the catalyst and SFC were mixed completely before placed into the reactor.