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Ethanol organosolv pretreatment of softwood (Picea abies) and sugarcane bagasse for biofuel and biorefinery applications
NTNU Norwegian University of Science and Technology, Norway.
RISE., Innventia, PFI – Paper and Fiber Research Institute.
NTNU Norwegian University of Science and Technology, Norway.
RISE., Innventia, PFI – Paper and Fiber Research Institute.
Vise andre og tillknytning
2015 (engelsk)Inngår i: Wood Science and Technology, ISSN 0043-7719, E-ISSN 1432-5225, Vol. 49, nr 5, s. 881-896Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Ethanol derived from biomass has the potential to be a renewable transportation fuel that can replace gasoline. This work was carried out to establish an optimized ethanol organosolv pretreatment of Norway spruce (Picea abies) for bioethanol production (63 wt% EtOH, pH ~3.5 in aqueous phase, 170–240 °C, 90 min) utilizing hydrolytic enzymes in the saccharification step. To test the generality of the method, a series of ethanol organosolv pretreatments were also performed on sugarcane bagasse (50 wt% EtOH, pH ~3.5 in aqueous phase, 155–210 °C, 90–120 min). The degree of delignification increased with increasing temperature during pretreatment, and the fastest increase was observed with sugarcane bagasse. The pretreatments were carried out in a batch mode. The maximum degree of delignification of ~65 % was reached at ~235 °C for Norway spruce, while sugarcane bagasse reached ~80 % at ~210 °C. Cellulose was subjected to degradation (5–10 % points) at these temperatures. Subsequent enzymatic hydrolysis (30 FPU/g cellulose, 32 pNPGU/g cellulose, 50 °C, 48 h) of ethanol organosolv-pretreated biomass achieved complete conversion for both raw materials at the highest degrees of delignification.

sted, utgiver, år, opplag, sider
2015. Vol. 49, nr 5, s. 881-896
Emneord [en]
Lignin Cellulase, Hemicellulose, Sugarcane Bagasse, Organosolv
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-18934DOI: 10.1007/s00226-015-0738-4Scopus ID: 2-s2.0-84938745804OAI: oai:DiVA.org:ri-18934DiVA, id: diva2:1040132
Tilgjengelig fra: 2016-10-26 Laget: 2016-10-26 Sist oppdatert: 2019-07-04bibliografisk kontrollert

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