University of Oulu

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

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Author: Lappalainen, Katja1,2; Dong, Yue2,3
Organizations: 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
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2019120345373
Language: English
Published: Elsevier, 2019
Publish Date: 2021-03-09
Description:

Abstract

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.

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Series: Biomass & bioenergy
ISSN: 0961-9534
ISSN-E: 1873-2909
ISSN-L: 0961-9534
Volume: 123
Pages: 159 - 165
DOI: 10.1016/j.biombioe.2019.02.017
OADOI: https://oadoi.org/10.1016/j.biombioe.2019.02.017
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
215 Chemical engineering
Subjects:
Funding: 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).
Copyright information: © 2019 Elsevier Ltd. All rights reserved.