Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

An Experimental Study of the Acetic Acid Steam Reforming Over Co-Based Catalysts

Version 1 : Received: 22 December 2020 / Approved: 23 December 2020 / Online: 23 December 2020 (09:09:34 CET)

A peer-reviewed article of this Preprint also exists.

Cortese, M.; Ruocco, C.; Palma, V.; Megía, P.J.; Carrero, A.; Calles, J.A. On the Support Effect and the Cr Promotion of Co Based Catalysts for the Acetic Acid Steam Reforming. Catalysts 2021, 11, 133. Cortese, M.; Ruocco, C.; Palma, V.; Megía, P.J.; Carrero, A.; Calles, J.A. On the Support Effect and the Cr Promotion of Co Based Catalysts for the Acetic Acid Steam Reforming. Catalysts 2021, 11, 133.

Journal reference: Catalysts 2021, 11, 133
DOI: 10.3390/catal11010133

Abstract

This work focuses on the support effect on the performances of Co-based catalysts for the acetic acid steam reforming. SBA-15, a well ordered hexagonal mesoporous silica structure, and CeO2 have been selected as the supports, with the impact of chromium addition also being investigated. Better acetic acid steam reforming performances have been recorded for CeO2 compared to SBA-15 supported catalysts and, in particular, the 7Co/CeO2 catalyst showed the highest values of acetic acid conversions with enhanced H2 yields below 480°C, in comparison to the other investigated catalytic formulations. In addition, more pronounced coke depositions and acetone concentrations have been obtained with CeO2 supported catalysts, due to the tendency of ceria to catalyse the ketonization reaction. Chromium addition to Co/SBA-15 catalysts led to an enhancement in the activity towards acetic acid steam reforming, while on CeO2 supported catalysts no improvement in the catalysts activity was observed; however, on both SBA-15 and CeO2 supported catalysts, Cr addition reduced the amount of coke deposited on the catalysts surface.

Subject Areas

acetic acid; reforming; hydrogen; cobalt; ceria

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