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Chemical characterization of lignocellulosic materials by analytical pyrolysis

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dc.contributor.authorLourenço, Ana
dc.contributor.authorGominho, Jorge
dc.contributor.authorPereira, Helena
dc.date.accessioned2023-06-19T12:35:14Z
dc.date.available2023-06-19T12:35:14Z
dc.date.issued2018
dc.description.abstractAnalytical pyrolysis is used to chemically study complex molecular materials and is applied in a wide range of fields. Pyrolysis is a thermochemical process associated to the breaking of chemical bonds using thermal energy, transforming a nonvolatile compound into a volatile degradation mixture. This chapter refers to analytical pyrolysis of lignocellulosic materials, i.e., when pyrolysis is used for chemical characterization, applied to samples with small particle sizes, at 500–650°C, and with short residence times. The reactions that occur during pyrolysis of the structural components are discussed regarding the mechanisms and the pyrolysis products obtained from cellulose, hemicelluloses, and lignin. A compilation of data is made on the characterization of lignocellulosic materials using Py-GC/FID(MS) or Py-GC/MS as analytical tools including woods and barks of several species. The pyrogram profiles and important parameters on lignin chemical composition such as the H:G:S relation and the S/G ratio are summarized. Analytical pyrolysis is a versatile methodology that may be applied to characterize the lignin directly on the lignocellulosic material or after isolation from the cell wall matrix (e.g., as MWL or dioxane lignin) or from pulps or spent liquors. It is therefore an excellent tool to study lignin compositional variability in different materials and along various processing pathways.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLourenço, A., Gominho, J., & Pereira, H. (2018). Chemical characterization of lignocellulosic materials by analytical pyrolysis. IntechOpen. doi: 10.5772/intechopen.80556pt_PT
dc.identifier.doi10.5772/intechopen.80556pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/27926
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIntechOpenpt_PT
dc.relationLignin and phenolic-based extractives as key components for the bio-economic sustainability of biorefineries
dc.relationForest Research Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPy-GC/MSpt_PT
dc.subjectwoodpt_PT
dc.subjectbarkspt_PT
dc.subjectligninpt_PT
dc.subjectcellulosept_PT
dc.subjectH:G:S relationpt_PT
dc.subjectS/G ratiopt_PT
dc.titleChemical characterization of lignocellulosic materials by analytical pyrolysispt_PT
dc.typebook part
dspace.entity.typePublication
oaire.awardNumberSFRH/BPD/95385/2013
oaire.awardNumberUID/AGR/00239/2013
oaire.awardTitleLignin and phenolic-based extractives as key components for the bio-economic sustainability of biorefineries
oaire.awardTitleForest Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F95385%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00239%2F2013/PT
oaire.citation.titleAnalytical Pyrolysispt_PT
oaire.fundingStreamOE
oaire.fundingStream6817 - DCRRNI ID
person.familyNameLourenço
person.familyNameGominho
person.givenNameAna
person.givenNameJorge
person.identifierA-5901-2011
person.identifierc-OdG5gAAAAJ
person.identifier.ciencia-id411B-FD38-7C96
person.identifier.ciencia-idE21C-1B36-77F6
person.identifier.orcid0000-0003-4896-344X
person.identifier.orcid0000-0003-3419-6075
person.identifier.scopus-author-id36877743000
person.identifier.scopus-author-id57195915156
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typebookPartpt_PT
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