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Enhancing the Methane Yield of Salicornia spp. via Organosolv Fractionation as Part of a Halophyte Biorefinery Concept
Faculty of Mechanical and Process Engineering and Maritime Technologies, Flensburg University of Applied Sciences, Kanzleistr. 91-93, Flensburg, 24943, Germany.ORCID iD: 0000-0003-4447-6126
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0002-3687-6173
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0001-7500-2367
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2024 (English)In: Energies, E-ISSN 1996-1073, Vol. 17, no 5, article id 1074Article in journal (Refereed) Published
Abstract [en]

The present research investigated the effect of organosolv pretreatment on two species of salt-tolerant Salicornia spp. biomass, Salicornia dolichostachya and Salicornia ramosissima, for increasing biomethane production through anaerobic digestion. The final biomethane yield of de-juiced green fibers of Salicornia spp. from wet fractionation increased by 23–28% after organosolv treatment. The highest methane yield of about 300 mL-CH4/gVS was found after organosolv treatment with 60% v/v ethanol solution at 200 °C for 30 min, or at 180 °C for 30 or 60 min treatment time. Furthermore, the methane production rate increased significantly, reducing the time until 95% of the final methane yield was reached from 20 days to 6–10 days for the organosolv-treated biomass. This research shows that the process of anaerobic digestion of halophyte biomass benefits from cascade processing of Salicornia fibers in a biorefinery framework by sequential wet and organosolv fractionation for full utilization of halophytic biomass.

Place, publisher, year, edition, pages
Multidisciplinary Digital Publishing Institute (MDPI) , 2024. Vol. 17, no 5, article id 1074
Keywords [en]
anaerobic digestion, biorefinery, methane production, organosolv pretreatment
National Category
Bioprocess Technology
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-104891DOI: 10.3390/en17051074Scopus ID: 2-s2.0-85187864102OAI: oai:DiVA.org:ltu-104891DiVA, id: diva2:1846947
Note

Validerad;2024;Nivå 2;2024-04-05 (marisr);

Full text license: CC BY

Available from: 2024-03-26 Created: 2024-03-26 Last updated: 2024-04-05Bibliographically approved

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Monção, MaxwelMatsakas, LeonidasRova, UlrikaChristakopoulos, Paul

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