Impact of hybrid CO2-CO feeds on methanol synthesis over In2O3-based catalysts

نویسندگان

چکیده

Catalysts for CO2-to-methanol are typically evaluated in a single-pass regime using pure CO2streams. In practical process however, CO shall be present as feed impurity or recycled byproduct. Herein, the sensitivity to was on In2O3 catalysts bulk, supported, metal-promoted forms, cycle experiments with variable CO2 and contents at H2/(CO + CO2) = 4. The methanol productivity decreased (?20-?40 %) all except In2O3/monoclinic-ZrO2, activity of which boosted by 10 %. In-depth characterization uncovered controlled formation oxygen vacancies resistance sintering main reasons activation latter an interplay CO/H2O-induced inhibition origin performance loss. Focusing most representative systems, operation protocols were explored maximize their yield. We emphasize that assessment hybrid CO2-CO feeds is key design industrially-viable sustainable production.

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ژورنال

عنوان ژورنال: Applied Catalysis B-environmental

سال: 2021

ISSN: ['1873-3883', '0926-3373']

DOI: https://doi.org/10.1016/j.apcatb.2021.119878