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A novel hybrid organosolv-steam explosion pretreatment and fractionation method delivers solids with superior thermophilic digestibility to methane
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: 0000-0003-2568-2979
Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0001-7500-2367
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2020 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 316, article id 123973Article in journal (Refereed) Published
Abstract [en]

Rising environmental concerns and the imminent depletion of fossil resources have sparked a strong interest towards the production of renewable energy such as biomethane. Inclusion of alternative feedstock’s such as lignocellulosic biomass could further expand the production of biomethane. The present study evaluated the potential of a novel hybrid organosolv-steam explosion fractionation for delivering highly digestible pretreated solids from birch and spruce woodchips. The highest methane production yield was 176.5 mLCH4 gVS−1 for spruce and 327.2 mL CH4 gVS−1 for birch. High methane production rates of 1.0–6.3 mL min−1 (spruce) and 6.0–35.5 mL min−1 (birch) were obtained, leading to a rapid digestion, with 92% of total methane from spruce being generated in 80 h and 95% of that from birch in 120 h. These results demonstrate the elevated potential of the novel method to fractionate spruce and birch biomass and deliver cellulose-rich pretreated solids with superior digestibility.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 316, article id 123973
Keywords [en]
Anaerobic digestion, Softwood, Hardwood, Spruce, Birch, Hybrid organosolv-steam explosion
National Category
Bioprocess Technology
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-80509DOI: 10.1016/j.biortech.2020.123973ISI: 000571523000003PubMedID: 32799045Scopus ID: 2-s2.0-85089217064OAI: oai:DiVA.org:ltu-80509DiVA, id: diva2:1459720
Note

Validerad;2020;Nivå 2;2020-08-20 (alebob)

Available from: 2020-08-20 Created: 2020-08-20 Last updated: 2023-09-05Bibliographically approved

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Matsakas, LeonidasSarkar, OmprakashRova, UlrikaChristakopoulos, Paul

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