Decomposition of methanol to syngas on supported Pt-containing catalysts

Abstract

Properties of supported Pt-containing granular (Pt/Ce0.75Zr0.25O2–δ) and monolithic structured (Pt/Ce0.75Zr0.25O2–δ /η-Al2O3 /FeCrAl) catalysts were studied in the methanol decomposition to syngas for feeding solid oxide fuel cells (SOFC). The application of the monolithic structured catalyst in the methanol decomposition reaction was shown to be promising. The addition of a small oxygen amount to the initial mixture was found to prevent the formation of carbon, thus enhancing the stability of catalyst operation. The proposed monolithic structured catalyst 0.15 wt.% Pt/8 wt.% Ce0.75Zr0.25O2–δ /6 wt.% η-Al2O3 /FeCrAl at atmospheric pressure, temperature of ca. 400 °C, feed rate of the reaction mixture 5.6 L/(gcat·h) and volumetric ratio СН3ОН/air = 1 can provide the complete conversion of methanol to syngas with the total content of H2 and СО of ca. 64 vol.% and the syngas output of ca. 6.7 L(Н2 + СО)/(gcat· h).