Publication
Biorefinery approach for lignocellulosic biomass valorisation with an acidic ionic liquid
| dc.contributor.author | Lopes, André | |
| dc.contributor.author | Lins, Roberto M. G. | |
| dc.contributor.author | Rebelo, Ricardo A. | |
| dc.contributor.author | Lukasik, Rafal M. | |
| dc.date.accessioned | 2019-02-01T15:52:49Z | |
| dc.date.available | 2019-02-01T15:52:49Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | ABSTRACT: The commercialisation of the biorefinery approach involving the integration of the multi-step valorisation of low value biomass feedstock into a variety of chemicals, fuels and bioproducts is still very limited. In this context, the present work proposes an advanced methodology that comprises a cascaded approach towards wheat straw valorisation. The studied concept lies in the employment of an aqueous solution of the acidic 1-ethyl-3-methylimidazolium hydrogen sulfate ionic liquid in a selective and efficient hydrolysis of the hemicellulose fraction of wheat straw into pentoses, namely xylose and arabinose. An experimental design was utilised to search for the optimisation parameters, resulting in a maximum 80.5 wt% pentose yield in the liquor. Furthermore, the remaining solid, which contained practically all of the initial cellulose and lignin, was processed by considering two scenarios: (i) a direct enzymatic hydrolysis of the reaction solid, which yielded 75.8 mol% glucose; or (ii) a preceding extraction of lignin followed by enzymatic saccharification of the cellulose pulp, which yielded 91.3 mol% glucose. For both scenarios, lignin-rich solid fractions were obtained with distinct purities and yields. Additionally, the second scenario allowed producing a stream of value-added aromatic (phenolic) compounds. This work also overcame the challenges in IL recycling and reuse, with a simultaneous recovery of the pentoses from the reaction liquor as high as 88.6 mol%. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Lopes, A.M. da Costa... [et.al.] - Biorefinery approach for lignocellulosic biomass valorisation with an acidic ionic liquid. In: Green Chemistry, 2018, Vol. 20, p. 4043-4047 | pt_PT |
| dc.identifier.issn | 1463-9262 | |
| dc.identifier.uri | http://hdl.handle.net/10400.9/3124 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Royal Society of Chemistry | pt_PT |
| dc.relation | IF/00471/2015 | pt_PT |
| dc.relation | IONIC LIQUIDS AND BIOREFINERY – TOOLS TO PRODUCE ETHANOL AND HIGH VALUE ADDED PRODUCTS | |
| dc.relation | UID/QUI/50006/ 2013 | pt_PT |
| dc.relation | POCI-01-0145-FEDER - 007265 | pt_PT |
| dc.relation | FCT/1909/27/2/2014/S | pt_PT |
| dc.relation.publisherversion | https://doi.org/10.1039/c8gc01763h | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Biorefinery | pt_PT |
| dc.subject | Lignocellulosic biomass | pt_PT |
| dc.subject | Valorisation | pt_PT |
| dc.subject | Ionic liquids | pt_PT |
| dc.title | Biorefinery approach for lignocellulosic biomass valorisation with an acidic ionic liquid | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | IONIC LIQUIDS AND BIOREFINERY – TOOLS TO PRODUCE ETHANOL AND HIGH VALUE ADDED PRODUCTS | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F90282%2F2012/PT | |
| oaire.citation.endPage | 4057 | pt_PT |
| oaire.citation.startPage | 4043 | pt_PT |
| oaire.citation.title | Green Chemistry | pt_PT |
| oaire.citation.volume | 20 | pt_PT |
| person.familyName | Lukasik | |
| person.givenName | Rafal | |
| person.identifier.orcid | 0000-0002-7805-5744 | |
| person.identifier.rid | A-6315-2011 | |
| person.identifier.scopus-author-id | 6506737268 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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