Selective Hydrodeoxygenation of Alkyl Lactates to Alkyl Propionates with Fe-based Bimetallic Supported Catalysts.
ChemSusChem
; 11(4): 681-687, 2018 02 22.
Article
em En
| MEDLINE
| ID: mdl-29286584
ABSTRACT
Hydrodeoxygenation (HDO) of methyl lactate (ML) to methyl propionate (MP) was performed with various base-metal supported catalysts. A high yield of 77 % MP was obtained with bimetallic Fe-Ni/ZrO2 in methanol at 220 °C and 50â
bar H2 . A synergistic effect of Ni increased the yield of MP significantly when using Fe-Ni/ZrO2 instead of Fe/ZrO2 alone. Moreover, the ZrO2 support contributed to improve the yield as a phase transition of ZrO2 from tetragonal to monoclinic occurred after metal doping giving rise to fine dispersion of the Fe and Ni on the ZrO2 , resulting in a higher catalytic activity of the material. Interestingly, it was observed that Fe-Ni/ZrO2 also effectively catalyzed methanol reforming to produce H2 inâ
situ, followed by HDO of ML, yielding 60 % MP at 220 °C with 50â
bar N2 instead of H2 . Fe-Ni/ZrO2 also catalyzed HDO of other short-chain alkyl lactates to the corresponding alkyl propionates in high yields around 70 %. No loss of activity of Fe-Ni/ZrO2 occurred in five consecutive reaction runs demonstrating the high durability of the catalyst system.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Propionatos
/
Lactatos
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article