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Waste-to-Fuel Approach: Valorization of Lignin from Coconut Coir Pith
Department of Organic Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden.
Department of Organic Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden.
Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Wood Chemistry and Pulp Technology. Department of Organic Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden.
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2022 (English)In: ACS Agricultural Science and Technology, ISSN 2692-1952, Vol. 2, no 2, p. 349-358Article in journal (Refereed) Published
Abstract [en]

Coconut Coir Pith (CCP) is a relatively unexplored type of lignocellulosic waste from the coconut industry. As a feedstock that is highly enriched in lignin (Klason lignin content of 40.9 wt % found in this study), CCP is a potential source for renewable lignin-derived materials. We have performed a systematic study on the characterization and valorization of lignin from CCP. We have investigated two different valorization approaches: reductive catalytic fractionation (RCF) and soda pulping followed by catalytic hydrodeoxygenation. During RCF, the lignin was converted into monomeric products in 7.6 wt %. Using soda pulping conditions, we were able to isolate lignin from CCP in 74% yield. Subsequent hydrotreatment of the lignin over a Pt/MoO3/TiO2catalyst resulted in the formation of hydrogenated oil in 43 wt % yield, suitable for the production of biobased diesel fuels and lubricant base oils. 

Place, publisher, year, edition, pages
American Chemical Society (ACS) , 2022. Vol. 2, no 2, p. 349-358
Keywords [en]
biodiesel, biojet fuel, hydrodeoxygenation, lignocellulose, lubricant base oil, reductive catalytic fractionation, soda pulping
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-322040DOI: 10.1021/acsagscitech.1c00248ISI: 000911394300022Scopus ID: 2-s2.0-85126367398OAI: oai:DiVA.org:kth-322040DiVA, id: diva2:1714254
Note

QC 20230215

Available from: 2022-11-29 Created: 2022-11-29 Last updated: 2024-08-02Bibliographically approved

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Subbotina, Elena

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