Transfer hydrogenation of cellulose-based oligomers over carbon-supported ruthenium catalyst in a fixed-bed reactor

Shrotri, Abhijit, Kobayashi, Hirozaku, Tanksale, Akshat, Fukuoka, Atsushi and Beltramini, Jorge (2014) Transfer hydrogenation of cellulose-based oligomers over carbon-supported ruthenium catalyst in a fixed-bed reactor. ChemCatChem, 6 5: 1349-1356. doi:10.1002/cctc.201301020


Author Shrotri, Abhijit
Kobayashi, Hirozaku
Tanksale, Akshat
Fukuoka, Atsushi
Beltramini, Jorge
Title Transfer hydrogenation of cellulose-based oligomers over carbon-supported ruthenium catalyst in a fixed-bed reactor
Journal name ChemCatChem   Check publisher's open access policy
ISSN 1867-3899
Publication date 2014-05
Year available 2014
Sub-type Article (original research)
DOI 10.1002/cctc.201301020
Open Access Status
Volume 6
Issue 5
Start page 1349
End page 1356
Total pages 8
Place of publication Weinheim, Germany
Publisher Wiley - V C H Verlag
Collection year 2015
Language eng
Formatted abstract
Ru supported on activated carbon was found to be active for the transfer hydrogenation of cellulose oligomers, which were produced by the milling of acidulated microcrystalline cellulose. A C6 sugar alcohol yield of 85 % was obtained in less than 1 h reaction time in a batch reactor. Optimum reaction conditions for transfer hydrogenation were determined as 180 °C and a pH above 2.2 using glucose as a substrate. Use of deuterium as a marker established that direct transfer of hydride species from 2-propanol to glucose occurs through the dihydride mechanism. Formation of molecular hydrogen from 2-propanol dehydrogenation was found to be a side reaction, with little influence on the glucose hydrogenation step. Conversion of cellulose oligomers to hexitols was also achieved in a continuous flow fixed-bed reactor with 36.4 % yield at a liquid hourly space velocity of 4.7 h-1. The catalytic activity did not decrease even after 12 h of the onstream reaction. Fix that bed: The catalytic conversion of cellulose to sugar alcohols in high yield in a continuous flow fixed-bed reactor through hydrolytic transfer hydrogenation is described. Ru supported on activated carbon catalyses direct hydrogen transfer from 2-propanol to glucose without the involvement of hydrogen gas.
Keyword Biomass
Cellulose
Fixed-bed reactor
Platform chemicals
Transfer hydrogenation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
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