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dc.contributor.authorReynoso Estévez, Alberto José ORCID
dc.contributor.authorAyastuy Arizti, José Luis
dc.contributor.authorIriarte Velasco, Unai
dc.contributor.authorGutiérrez Ortiz, Miguel Angel
dc.date.accessioned2023-03-07T16:49:03Z
dc.date.available2023-03-07T16:49:03Z
dc.date.issued2023-04
dc.identifier.citationFuel Processing Technology 242 (2023) // Article ID 107634es_ES
dc.identifier.issn0378-3820
dc.identifier.issn1873-7188
dc.identifier.urihttp://hdl.handle.net/10810/60296
dc.description.abstractWaste glycerol obtained as by-product of biodiesel production has been submitted to a sequential physico-chemical treatment in order to make it suitable for continuous Aqueous-Phase Reforming (APR) in a tubular reactor. Special focus was given to the impact of impurities. APR was performed using 0.3%Pt/CoAl2O4 catalyst, at 260 °C and 50 bar within WHSV range 6–55 h−1 to cover whole conversion ranges. Glycerol conversion and yield to hydrogen reached 99.7% and 45.4%, respectively at WHSV = 6 h−1. The liquid product distribution strongly varied with glycerol conversion, maximum C-yield to 1,2-propylene glycol was attained in the 60–90% glycerol conversion range. APR of methanol and acetic acid aqueous feedstreams were investigated independently. It was concluded that acetic acid exerts a negative influence on catalyst stability since glycerol conversion decreased by 41% after 5 h TOS. Extensive characterization of fresh and exhausted catalysts revealed strong Co leaching, especially for acetic acid APR, oxidation of metals, and carbonaceous deposits. The basis for the regeneration of the spent catalyst, consisting of a reductive treatment at 500 °C, has been established. This work is expected to have significant implications for the development of APR technology for crude glycerol from biodiesel industry.es_ES
dc.description.sponsorshipThis research was supported by grant PID2019-106692EB-I00 funded by MCIN/AEI/10.13039/501100011033. The authors thank for technical support provided by SGIker of UPV/EHU and European funding (ERDF and ESF).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationinfo:eu-repo/grantAgreement/MICINN/PID2019-106692EB-I00es_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectAPRes_ES
dc.subjectcobalt aluminatees_ES
dc.subjectglyceroles_ES
dc.subjectbio‑hydrogenes_ES
dc.subjectmethanoles_ES
dc.subjectacetic acides_ES
dc.titleBio‑hydrogen and valuable chemicals from industrial waste glycerol via catalytic aqueous-phase transformationes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).es_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S037838202200474X?via%3Dihubes_ES
dc.identifier.doi10.1016/j.fuproc.2022.107634
dc.departamentoesIngeniería químicaes_ES
dc.departamentoeuIngeniaritza kimikoaes_ES


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© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).