Pyrolysis of Colombian spent coffee grounds (SCGs), characterization of bio-oil, and study of its antioxidant properties

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dc.contributor.authorMalagón-Romero, Dionisiocs
dc.contributor.authorTorres-Velasquez, Andres C.cs
dc.contributor.authorTinoco Navarro, Lizeth Katherinecs
dc.contributor.authorArrubla-Velez, Juan P.cs
dc.coverage.issue1cs
dc.coverage.volume42cs
dc.date.accessioned2024-02-22T15:45:27Z
dc.date.available2024-02-22T15:45:27Z
dc.date.issued2023-12-14cs
dc.description.abstractCoffee is the second most consumed beverage in the world. Spent coffee grounds (SCGs) are promising raw material for pyrolysis. The Kissinger-Akahira-Sunose model (KAS) and Ozawa-Flynn Wall (OFW), determined the pyrolysis activation energy to be 142.40 and 66.08 kJ/mol, respectively. The pyrolysis products were bio-oil with a 22.5% yield and a calorific power of 28.91 MJ/kg. The bio-oil composition was 50.86% fatty acids, 31.65% linear hydrocarbons, and 11.31% aromatics, as determined by GC-MS. The total phenolic content (TPC) was 362 & PLUSMN; 44 mg GA g(-1), with DPPH activity of 24.8 & PLUSMN; 2% inhibition and antioxidant activity of 108.5 & PLUSMN; 13.6 mg L-1 of Trolox equivalents. The results showed that bio-oil could be used as a biofuel and a source of chemical compounds.en
dc.formattextcs
dc.format.extent811-829cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationInternational Journal of Sustainable Energy. 2023, vol. 42, issue 1, p. 811-829.en
dc.identifier.doi10.1080/14786451.2023.2235025cs
dc.identifier.issn1478-6451cs
dc.identifier.orcid0000-0003-2354-3000cs
dc.identifier.other185774cs
dc.identifier.urihttps://hdl.handle.net/11012/245195
dc.language.isoencs
dc.publisherTAYLOR & FRANCIS LTDcs
dc.relation.ispartofInternational Journal of Sustainable Energycs
dc.relation.urihttps://www.tandfonline.com/doi/full/10.1080/14786451.2023.2235025cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1478-6451/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectPyrolysisen
dc.subjectSCGsen
dc.subjectCoffeeen
dc.subjectBiofuelsen
dc.subjectAntioxidant activityen
dc.titlePyrolysis of Colombian spent coffee grounds (SCGs), characterization of bio-oil, and study of its antioxidant propertiesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-185774en
sync.item.dbtypeVAVen
sync.item.insts2024.02.22 16:45:27en
sync.item.modts2024.02.22 16:13:04en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Magneto-Optická a THz Spektroskopiecs
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Magneto-Optická a THz Spektroskopie
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