Donor Activity of sub- and supercritical Primary Alcohols in Catalyst-free and Ni/γ-Al2O3 Catalyzed Transfer Hydrogenation of Furfural
Full article
| Common |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
The Journal of Supercritical Fluids
ISSN: 0896-8446
, E-ISSN: 1872-8162
|
| Output data |
Year: 2023,
Volume: 193,
Article number
: 105815,
Pages count
: 9
DOI:
10.1016/j.supflu.2022.105815
|
| Tags |
Transfer hydrogenation, furfural, C1-C4 alcohols, supercritical, Ni-based catalysts |
| Authors |
Philippov Alexey A.
1
,
Anufrieva Veronika M.
1
,
Pakharukova Vera P.
1
,
Martyanov Oleg N.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS, Academician Lavrentiev ave. 5, Novosibirsk 630090, Russia
|
|
Funding (1)
|
1
|
Ministry of Science and Higher Education of the Russian Federation
|
0239-2021-0003
|
Sub- and supercritical alcohols are known as effective hydrogen donors. In this work, transfer hydrogenation (TH) of furfural with C1-C4 alcohols has been studied under sub- and supercritical conditions. In the range of 230–275 °C, the observed activation energy of catalyst-free transformations of furfural into furfuryl alcohol and some minor byproducts has been shown to be 98 ± 8, 64 ± 4 and 79 ± 6 kJ/mol for EtOH, 1-PrOH and 2-PrOH, respectively. The use of a
Ni/γ-Al2O3 catalyst results in higher rate constants compared to the catalyst-free TH. Nevertheless, the selectivity to furfuryl alcohol in the presence of the catalyst does not exceed 50% vs 70–80% for the catalyst-free transformations. Thus, this study shows the high donor potential of alcohols in TH under both catalytic and catalyst-free conditions. A special attention is paid to primary alcohols, because they are highly demanded as H-donors due to economic and environmental reasons.