000171191 001__ 171191
000171191 005__ 20260515163945.0
000171191 0247_ $$2doi$$a10.1016/j.jece.2026.122861
000171191 0248_ $$2sideral$$a149265
000171191 037__ $$aART-2026-149265
000171191 041__ $$aeng
000171191 100__ $$0(orcid)0009-0003-7099-4864$$aGracia-Monforte, César$$uUniversidad de Zaragoza
000171191 245__ $$aChemical looping combustion of the aqueous phase fraction of bio-oil from biomass pyrolysis
000171191 260__ $$c2026
000171191 5060_ $$aAccess copy available to the general public$$fUnrestricted
000171191 5203_ $$aThe aqueous fraction of pyrolysis bio-oil, which can account for up to 85 wt% water, is typically considered a low-value by-product due to its high water content, corrosivity, toxicity, and low heating value. Its effective utilization remains a challenge for the development of sustainable biomass valorization technologies. In this work, the potential of chemical looping combustion (CLC) was evaluated as an alternative route for converting this fraction into energy while enabling inherent CO2 capture. Several oxygen carriers (OCs) based on Cu, Fe, Ni, and Mn were screened in a fixed-bed reactor at 650 °C using a synthetic model mixture representative of the aqueous bio-oil fraction (acetone, acetic acid, phenol, p-cresol, and 2-butanone). The laboratory-synthesized CuO/Al2O3 powder OC exhibited the best performance, achieving complete oxidation of the mixture to CO2 and H2O without detectable by-products during the combustion phase. Furthermore, the selected OC demonstrated highly stable redox performance and regenerability over multiple cycles at 650 and 750 °C, with the operation at 750 °C effectively minimizing carbon deposition compared to 650 °C. Overall, this low-temperature CLC approach with a CuO/Al2O3 carrier successfully addresses prior challenges of severe carbon deposition and oxygen carrier deactivation, providing a robust pathway for aqueous bio-oil valorization.
000171191 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2023-1490520B-I00$$9info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-23R
000171191 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es
000171191 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000171191 700__ $$0(orcid)0000-0002-2866-9035$$aLete, Alejandro$$uUniversidad de Zaragoza
000171191 700__ $$0(orcid)0000-0003-4493-6540$$aÁbrego, Javier$$uUniversidad de Zaragoza
000171191 700__ $$0(orcid)0000-0002-5959-3168$$aArauzo, Jesús$$uUniversidad de Zaragoza
000171191 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000171191 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000171191 773__ $$g14, 3 (2026), 122861 [16 pp.]$$pJ. env. chem. eng.$$tJournal of Environmental Chemical Engineering$$x2213-3437
000171191 8564_ $$s5369044$$uhttps://zaguan.unizar.es/record/171191/files/texto_completo.pdf$$yVersión publicada
000171191 8564_ $$s2593764$$uhttps://zaguan.unizar.es/record/171191/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000171191 909CO $$ooai:zaguan.unizar.es:171191$$particulos$$pdriver
000171191 951__ $$a2026-05-15-14:54:46
000171191 980__ $$aARTICLE