Katja Lappalainen, Yue Dong, Simultaneous production of furfural and levulinic acid from pine sawdust via acid-catalysed mechanical depolymerization and microwave irradiation, Biomass and Bioenergy, Volume 123, 2019, Pages 159-165, ISSN 0961-9534, https://doi.org/10.1016/j.biombioe.2019.02.017
Simultaneous production of furfural and levulinic acid from pine sawdust via acid-catalysed mechanical depolymerization and microwave irradiation
|Author:||Lappalainen, Katja1,2; Dong, Yue2,3|
1University of Jyväskylä, Kokkola University Consortium Chydenius, Talonpojankatu 2B, 67100, Kokkola, Finland
2University of Oulu, Research Unit of Sustainable Chemistry, P.O.Box 4300, FIN-90014, University of Oulu, Finland
3Centria University of Applied Sciences, Talonpojankatu 2, 67100, Kokkola, Finland
|Online Access:||PDF Full Text (PDF, 0.4 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019120345373
|Publish Date:|| 2021-03-09
In this work pine sawdust was converted into levulinic acid (LA) and furfural. Sawdust was first pre-treated with sulfuric acid-catalysed mechanical depolymerization. The conversion reactions were then performed with microwave heating at 180 °C. To enhance the furfural yield and the efficient separation of furfural and LA, a biphasic water-toluene reaction system was used. The effect of an additional catalyst, AlCl₃, on the yield of LA and furfural was also studied. According to the results the pre-treatment method enhanced the yields of LA. In addition, due to the microwave heating the reaction times were short. Additional AlCl₃ catalyst enhanced the LA yield, however excellent furfural yields were achieved even without it. Best LA yield (38%) was achieved with 6 h of milling combined with 30 min of microwave heating while the best furfural yield (85%) was achieved with 4 h of milling and 20 min of microwave heating.
Biomass & bioenergy
|Pages:||159 - 165|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
116 Chemical sciences
215 Chemical engineering
This work was financially supported by Bioraff Botnia project (nr. 20200327) EU/Interreg Botnia-Atlantica as well as Maj and Tor Nessling Foundation (nr. 201800070).
© 2019 Elsevier Ltd. All rights reserved.