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Sn-Beta catalysed conversion of hemicellulosic sugars
Abstract
Conversions of various pentoses and hexoses into methyl lactate has been demonstrated for the Sn-Beta catalyst. It is found that pentoses are converted to methyl lactate in slightly lower yields (∼40%) than what is obtained for hexoses (∼50%), but higher yields of glycolaldehyde dimethyl acetal are observed for the pentoses. This finding is in accordance to a reaction pathway that involves the retro aldol condensation of the sugars to form a triose and glycolaldehyde for the pentoses, and two trioses for hexoses. When reacting glycolaldehyde (formally a C2-sugar) in the presence of Sn-Beta, aldol condensation occurs, leading to the formation of methyl lactate, methyl vinylglycolate and methyl 2-hydroxy-4-methoxybutanoate. In contrast, when converting the sugars in water at low temperatures (100 °C), Sn-Beta catalyses the isomerisation of sugars (ketose–aldose epimers), rather than the formation of lactates.
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Cites
Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review
Mohan, D., Pittman, C. U., & Steele, P. H. (2006) · Energy & Fuels · doi:10.1021/ef0502397 · Cited by 5,663
Cited by
Catalytic Isomerization of Biomass‐Derived Aldoses: A Review
Delidovich, I., & Palkovits, R. (2016) · ChemSusChem · doi:10.1002/cssc.201501577 · Cited by 300
Iglesias, J., Martínez-Salazar, I., Maireles-Torres, P., Martin Alonso, D., Mariscal, R., & López Granados, M. (2020) · Chemical Society Reviews · doi:10.1039/d0cs00177e · Cited by 292
Efficient valorization of biomass to biofuels with bifunctional solid catalytic materials
Li, H., Fang, Z., Smith, R. L., & Yang, S. (2016) · Progress in Energy and Combustion Science · doi:10.1016/j.pecs.2016.04.004 · Cited by 284
Metadata
- Authors
- Holm, M. S., Pagán-Torres, Y. J., Saravanamurugan, S., Riisager, A., Dumesic, J. A., & Taarning, E.
- Venue
- Green Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 14
- Issue
- 3
- Pages
- 702
- ISSN
- 1463-9262 (ISSN-L)
- 1463-9270
- OpenAlex
- W2148006161
- Cited by
- 233
- References
- 1
- FWCI
- 11.68
- Type
- journal article
- Language
- en
- Open access
- closed
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- Holm, M. S., Pagán-Torres, Y. J., Saravanamurugan, S., Riisager, A., Dumesic, J. A., & Taarning, E. (2012). Sn-Beta catalysed conversion of hemicellulosic sugars. Green Chemistry. https://doi.org/10.1039/c2gc16202d
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