Which variables matter for process design and scale-up? a study of sugar cane straw pretreatment using low-cost and easily synthesizable ionic liquids

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dc.contributor.authorFerrari, Felipe Augusto
dc.contributor.authorPereira, Jorge Fernando Brandaõ [UNESP]
dc.contributor.authorWitkamp, Geert-Jan
dc.contributor.authorForte, Marcus Bruno Soares
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionKing Abdullah University of Science and Technology (KAUST)
dc.contributor.institutionTechnology University of Delft (TUDelft)
dc.date.accessioned2019-10-06T15:53:13Z
dc.date.available2019-10-06T15:53:13Z
dc.date.issued2019-08-05
dc.description.abstractIonic liquids (ILs) have great potential as solvents and catalysts for pretreatment of lignocellulosic biomass. However, process scale-up necessitates that IL-based pretreatment methods be optimized in terms of cost and sustainability. In this study, low-cost and easily synthesizable ethanolammonium-based ILs were prepared and used in the pretreatment of sugar cane straw (SW). The effects of ILs, IL mixtures, pretreatment temperature, water content, solids loading, ultrasonication, and agitation speed on residual solids enzymatic digestibility and delignification were systematically assessed, and the process was scaled up from a 50 mL static flask to a 1 L impelled reactor. IL mixtures improved enzymatic digestibility at higher solids loading and water addition in the reaction medium under mild temperature conditions (90 °C). Enzymatic hydrolysis of residual solids after bench-scale pretreatment of SW for 3 h at 15% (w/w) solids loading and 20% (w/w) water content in the liquid phase resulted in 98% cellulose digestibility under nonoptimized conditions. This study provides a practical review of IL-based pretreatment methods, discusses the selection of variables for process design and scale-up, and presents empirical results.en
dc.description.affiliationBioprocess and Metabolic Engineering Laboratory Department of Food Engineering Faculty of Food Engineering University of Campinas (UNICAMP), Monteiro Lobato Street, 80-Zeferino Vaz
dc.description.affiliationDepartment of Bioprocesses and Biotechnology School of Pharmaceutical Sciences Saõ Paulo State University (UNESP), Rodovia Araraquara-Jaú, km 01, Campos Ville
dc.description.affiliationWater Desalination and Reuse Center (WDRC) Division of Biological and Environmental Science and Engineering (BESE) King Abdullah University of Science and Technology (KAUST)
dc.description.affiliationBioprocess Engineering Section Biotechnology Departament Faculty of Applied Sciences Technology University of Delft (TUDelft)
dc.description.affiliationUnespDepartment of Bioprocesses and Biotechnology School of Pharmaceutical Sciences Saõ Paulo State University (UNESP), Rodovia Araraquara-Jaú, km 01, Campos Ville
dc.format.extent12779-12788
dc.identifierhttp://dx.doi.org/10.1021/acssuschemeng.9b01385
dc.identifier.citationACS Sustainable Chemistry and Engineering, v. 7, n. 15, p. 12779-12788, 2019.
dc.identifier.doi10.1021/acssuschemeng.9b01385
dc.identifier.issn2168-0485
dc.identifier.scopus2-s2.0-85070921706
dc.identifier.urihttp://hdl.handle.net/11449/187979
dc.language.isoeng
dc.relation.ispartofACS Sustainable Chemistry and Engineering
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectEffect
dc.subjectIonic liquid
dc.subjectLignocellulose
dc.subjectPretreatment
dc.subjectProcess design
dc.subjectVariables
dc.titleWhich variables matter for process design and scale-up? a study of sugar cane straw pretreatment using low-cost and easily synthesizable ionic liquidsen
dc.typeArtigo
unesp.author.orcid0000-0001-5959-0015[2]
unesp.author.orcid0000-0002-2263-4392[4]

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