Kupila, R., Lappalainen, K., Hu, T., Heponiemi, A., Bergna, D., & Lassi, U. (2021). Production of ethyl lactate by activated carbon-supported Sn and Zn oxide catalysts utilizing lignocellulosic side streams. Applied Catalysis A: General, 624, 118327. https://doi.org/10.1016/j.apcata.2021.118327
Production of ethyl lactate by activated carbon-supported Sn and Zn oxide catalysts utilizing lignocellulosic side streams
|Author:||Kupila, Riikka1,2; Lappalainen, Katja1,2; Hu, Tao2;|
1Unit of Applied Chemistry, Kokkola University Consortium Chydenius, University of Jyväskylä, P.O. Box 567, FIN-67101, Kokkola, Finland
2Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FIN-90014, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 2.7 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2021090144937
|Publish Date:|| 2021-09-01
In this study, activated carbon-supported Sn and Zn oxide catalysts were prepared from hydrolysis lignin and used for the conversion of model solutions of trioses, hexoses, and lignocellulosic biomass hydrolysates to ethyl lactate. Both catalysts, SnO₂@AC and ZnO@AC, were able to produce ethyl lactate in high yields. SnO₂@AC was a more active and selective catalyst in triose (dihydroxyacetone) conversion, providing 99% yield to ethyl lactate. ZnO@AC, by contrast, was more selective in glucose and hydrolysate conversion, with a yield of 60% and 85%, respectively. The ethyl lactate yields were significantly higher than those from the optimized model solution experiments when using ZnO@AC catalyst. These findings indicate that milder acidity of the ZnO@AC catalyst together with Na⁺ and SO₄²⁻ in hydrolysate favored ethyl lactate production, preventing byproduct, furan derivatives and acetal, formation. Moreover, the catalysts were able to maintain their catalytic activity in recycling experiments.
Applied catalysis. A, General
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
116 Chemical sciences
Authors R.K. and K.L. would like to thank the Green Bioraff Solutions Project (EU/Interreg/Botnia-Atlantica, 20201508) for funding this research.
© 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).