On the understanding of bio-oil formation from the hydrothermal liquefaction of organosolv lignin isolated from softwood and hardwood sawdustShow others and affiliations
2023 (English)In: Sustainable Energy & Fuels, E-ISSN 2398-4902, Vol. 7, no 22Article in journal (Refereed) Published
Abstract [en]
Conversion of organosolv lignins isolated with and without an inorganic acid catalyst (H2SO4) from hard- and softwood (birch and spruce) into bio-oil through hydrothermal liquefaction has been investigated. Furthermore, fractions of the isolated bio-oils were catalytically deoxygenated to improve the bio-oil properties. As elucidated through NMR, both biomass source and extraction mode influence the bio-oil product distribution. Depending on whether the lignins carry a high content of native structures, or are depolymerized and subsequently condensed in the presence of sugar dehydration products, will dictate heavy oil (HO) and light oil (LO) distribution, and skew the HO product composition, which again will influence the requirements upon catalytical deoxygenation.
Place, publisher, year, edition, pages
Royal Society of Chemistry , 2023. Vol. 7, no 22
Keywords [en]
Hardwoods; Heavy oil production; Lignin; Liquefaction; Softwoods; Acid catalyst; Bio-oils; Biomass source; Hardwoods ands; Hydrothermal liquefactions; Isolated BiO; Oil formation; Oil product; Organosolv lignin; Property; Crude oil
National Category
Bioprocess Technology Wood Science
Identifiers
URN: urn:nbn:se:ri:diva-67714DOI: 10.1039/d3se00976aScopus ID: 2-s2.0-85174410902OAI: oai:DiVA.org:ri-67714DiVA, id: diva2:1809730
Funder
Swedish Energy Agency, 2019-005832, 2022-201046
Note
This work was part of the projects “Upgrading of organosolv lignin to jet fuel (GOLdJET FUEL)” and “Eco-efficient biorefinery for competitive production of green renewable shipping fuels (ECO-FORCE FUELS)” funded by the Swedish Energy Agency with reference numbers 2019-005832 and 2022-201046 respectively. Mattias Hedenström, Swedish NMR Centre (Umeå, Umeå University, VR RFI), João Figueira, Swedish NMR Centre (Umeå, Umeå University, Scilife Lab) and the NMR Core Facility (Swedish NMR Centre, SwedNMR, Umeå node), Umeå University are acknowledged for NMR support. FTICR MS equipment was funded by the European Regional Development Fund (FEDER), the general council of Moselle, Region Grand Est, Metz Metropole and the University of Lorraine (RESEX project).
2023-11-062023-11-062024-06-07Bibliographically approved