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Chemical Recovery of γ-Valerolactone/Water Biorefinery

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Lê, Huy Quang
dc.contributor.author Pokki, Juha Pekka
dc.contributor.author Borrega, Marc
dc.contributor.author Uusi-Kyyny, Petri
dc.contributor.author Alopaeus, Ville
dc.contributor.author Sixta, Herbert
dc.date.accessioned 2018-12-10T10:11:52Z
dc.date.available 2018-12-10T10:11:52Z
dc.date.issued 2018-11-07
dc.identifier.citation Lê , H Q , Pokki , J P , Borrega , M , Uusi-Kyyny , P , Alopaeus , V & Sixta , H 2018 , ' Chemical Recovery of γ-Valerolactone/Water Biorefinery ' , Industrial and Engineering Chemistry Research , vol. 57 , no. 44 , pp. 15147-15158 . https://doi.org/10.1021/acs.iecr.8b03723 en
dc.identifier.issn 0888-5885
dc.identifier.issn 1520-5045
dc.identifier.other PURE UUID: 21ad6fbe-b6b5-481d-b74b-8664cb6f189b
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/21ad6fbe-b6b5-481d-b74b-8664cb6f189b
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85056482495&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/29890690/CHEM_Le_et_al_Chemical_Recovery_Ind_Eng_Chem_Research_2018.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/34952
dc.description.abstract We introduce the optimization of the pulping conditions and propose different chemical recovery options for a proven biorefinery concept based on γ-valerolactone (GVL)/water fractionation. The pulping process has been optimized whereby the liquor-to-wood (L:W) ratio could be reduced to 3 L/kg without compromising the pulp properties as raw material for textile fibers production. The recovery of the pulping solvent was performed through combinations of lignin precipitation by water addition, distillation at reduced pressure, and liquid CO2 extraction. With a two-step lignin precipitation coupled with vacuum distillation, more than 90% of lignin and GVL could be recovered from the spent liquor. However, a significant part of GVL remained unrecoverable in the residue, which was a highly viscous liquid with complicated phase behavior. The recovery by lignin precipitation combined with liquid CO2 extraction could recover more than 85% GVL and 90% lignin without forming any problematic residue as in the distillation process. The remaining GVL remained in the raffinate containing a low amount of lignin and other compounds, which can be further processed to isolate the GVL and improve the recovery rate. en
dc.format.extent 12
dc.format.extent 15147-15158
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Industrial and Engineering Chemistry Research en
dc.relation.ispartofseries Volume 57, issue 44 en
dc.rights openAccess en
dc.title Chemical Recovery of γ-Valerolactone/Water Biorefinery en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Bioproducts and Biosystems
dc.contributor.department Department of Chemical and Metallurgical Engineering
dc.contributor.department VTT Technical Research Centre of Finland
dc.identifier.urn URN:NBN:fi:aalto-201812105967
dc.identifier.doi 10.1021/acs.iecr.8b03723
dc.type.version publishedVersion

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