Vapor Phase Ketonization of Acetic Acid on Ceria Based Metal Oxides

Journal Article · Thu Jun 27 04:00:00 EDT 2013 · Topics in Catalysis

DOI:https://doi.org/10.1007/s11244-013-0114-2· OSTI ID:1107484

Liu, Changjun; Karim, Ayman M.; Lebarbier, Vanessa M.; Mei, Donghai; Wang, Yong

The activities of CeO2, Mn2O3-CeO2 and ZrO2-CeO2 were measured for acetic acid ketonization under reaction conditions relevant to pyrolysis vapor upgrading. We show that the catalyst ranking changed depending on the reaction conditions. Mn2O3-CeO2 was the most active catalyst at 350 oC, while ZrO2 - CeO2 was the most active catalyst at 450 oC. Under high CO2 and steam concentration in the reactants, Mn2O3-CeO2 was the most active catalyst at 350 and 450 °C. The binding energies of steam and CO2 with the active phase were calculated to provide the insight into the tolerance of Mn2O3-CeO2 to steam and CO2.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1107484
• Report Number(s): PNNL-SA-93130; 47660; BM0101010
• Journal Information: Topics in Catalysis, Journal Name: Topics in Catalysis Journal Issue: 18-20 Vol. 56; ISSN 1022-5528
• Publisher: Springer
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory
acid base catalyst
bio-oil upgrading
ceria
density functional theory
metal oxides
vapor phase ketonization