Pt catalyst supported on α-Al2O3 modified with CeO2 and ZrO2 for aqueous-phase-reforming of glycerol

• Published in: Catalysis today Vol. 213; pp. 58 - 64
• Main Authors: Barbelli, Maria L., Pompeo, Francisco, Santori, Gerardo F., Nichio, Nora N.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 15.09.2013; Elsevier
• Subjects: APR; Biomass; Catalysis; catalysts; catalytic activity; Chemistry; energy; Exact sciences and technology; General and physical chemistry; Glycerol; Hydrogen; particle size; Platinum; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Glycerol; APR; Biomass; Hydrogen; Platinum; Aluminium oxide; Binary compound; Transition element compounds; Transition metal; Reforming; Cerium oxide; Lanthanide compound; Heterogeneous catalysis; Zirconium oxide; Alumina; Catalyst support
• ISSN: 0920-5861; 1873-4308
• DOI: 10.1016/j.cattod.2013.02.023

•PtCe4Zr1α turned out to be the most active in the APR of glycerol.•The principal cause of the deactivation is a fast sintering.•PtCe4Zr1α presents the best performance compared to Ptα and PtSi fresh catalysts. The catalytic conversion of renewable sources using processes with low energy consumption is expected to reduce damage on the environment. In this sense, significant progress in reforming of alcohol from biomass has been made. The aim of the present work was to study the aqueous phase reforming (APR) of glycerol using Pt catalysts supported on SiO2, α-Al2O3, and α-Al2O3 modified with CeO2 and ZrO2 (Ce4Zr1α). The higher activity and H2 selectivity would be related to the less particle size or higher metal dispersion of catalysts. The redox properties of the support Ce4Zr1α favor the water gas shift reaction, increasing the yield H2. The Pt/Ce4Zr1α shows deactivation by a fast sintering, however this catalyst presents the best performance; even after three reaction cycles and regeneration.