Show simple item record

dc.contributor.authorEspinal, Raul
dc.contributor.authorTaboada, E.
dc.contributor.authorMolins, E.
dc.contributor.authorChimentao, Ricardo J
dc.contributor.authorMedina, Francisco
dc.contributor.authorLlorca Piqué, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.date.accessioned2013-06-28T10:41:09Z
dc.date.created2012-10-30
dc.date.issued2012-10-30
dc.identifier.citationEspinal, R. [et al.]. Cobalt hydrotalcites as catalysts for bioethanol steam reforming. The promoting effect of potassium on catalyst activity and long-term stability. "Applied catalysis B. Environmental", 30 Octubre 2012, vol. 127, p. 59-67.
dc.identifier.issn0926-3373
dc.identifier.urihttp://hdl.handle.net/2117/19717
dc.description.abstractCobalt hydrotalcite-derived catalysts, doped with potassium, are active materials for the ethanol steam reforming reaction. Potassium addition reduces the acid sites number and strength. It acts as a promoter of the ethanol steam reforming (ESR); ethanol conversion is higher at lower temperature, as the amount of potassium at the surface of the catalyst increases. The catalysts are stable for long-term experiments (300 h) under high loads of ethanol and bioethanol (0.036 gEtOH min−1, H2O:CH3CH2OH = 4:1 molar). Moreover, they generate a low amount of carbon (0.0067 gC gcatalyst−1 h−1). The catalysts after reaction contain almost exclusively high spin Co2+ in cobalt oxide (or in (Co,Mg)O); only traces of metallic cobalt are identified by magnetometry, <0.1 wt.% Co0, suggesting that oxidized cobalt is an active species in ESR.
dc.format.extent9 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Energies::Recursos energètics renovables
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química física
dc.subject.lcshHydrogen
dc.subject.lcshCobalt catalysts
dc.subject.otherHydrogen
dc.subject.otherEthanol reforming
dc.subject.otherBioethanol
dc.subject.otherCobalt catalyst
dc.subject.otherHydrotalcite-derived catalyst
dc.subject.otherHoneycomb
dc.titleCobalt hydrotalcites as catalysts for bioethanol steam reforming. The promoting effect of potassium on catalyst activity and long-term stability
dc.typeArticle
dc.subject.lemacHidrogen
dc.subject.lemacCatalitzadors
dc.contributor.groupUniversitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.identifier.doi10.1016/j.apcatb.2012.08.006
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac11211513
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorEspinal, R.; Taboada, E.; Molins, E.; Chimentao, R.; Medina, F.; Llorca, J.
local.citation.publicationNameApplied catalysis B. Environmental
local.citation.volume127
local.citation.startingPage59
local.citation.endingPage67


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record