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dc.contributor.authorRamírez Rangel, Eliana
dc.contributor.authorMayorga Cárdenas, Miguel Yuri
dc.contributor.authorCuevas, Daniel
dc.contributor.authorRecasens Baxarías, Francisco Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2012-02-13T10:48:44Z
dc.date.available2012-02-13T10:48:44Z
dc.date.created2011-03-02
dc.date.issued2011-03-02
dc.identifier.citationRamírez, E. [et al.]. Fatty oil hydrogenation in supercritical solvents: process design and safety issues. "Journal of supercritical fluids", 02 Març 2011, vol. 57, núm. 3, p. 143-154.
dc.identifier.issn0896-8446
dc.identifier.urihttp://hdl.handle.net/2117/15083
dc.description.abstractA simulation study of a SCF process is carried out using Aspen™ with previously available catalytic kinetics for the simulation of the reactor. Two supported catalysts were considered: a standard Pd/carbon, and an egg-shell Pd/alumina, in a vapour-phase process that uses propane as solvent. Best reactor–catalyst combination was selected using optimization. Optimal reactor–catalyst conditions were: Pd (0.5 wt%) on alumina catalyst in tubes, shell cooling, inlet temperature 170 °C, space-time 100 s, 4 mol% of H2 in the feed, oil feed 1 mol%, propane 95 mol%, with pressure up to 20 MPa. Three SC solvents, were considered in the simulation. These were (i) SC propane, (ii) a cosolvent case with hexane-modified CO2, and (iii) a case with pure liquid hexane. In plant simulation, three recycle streams (H2, CO2 and cosolvent) complicate the separations. In order to assess the safety differences between these options, a study was done using the Dow Fire and Explosion Index to roughly figure out process safety. It is shown that plant complexity increases with cosolvent use, but the hazard index is sensibly reduced, from F&EI = 150 (pure propane) to a low value (F&EI = 60) for a plant with CO2 with 40 mol% of hexane as cosolvent.
dc.format.extent12 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::Enginyeria química
dc.subject.lcshOils and fats
dc.titleFatty oil hydrogenation in supercritical solvents: process design and safety issues
dc.typeArticle
dc.subject.lemacHidrogenació
dc.subject.lemacOlis i greixos
dc.contributor.groupUniversitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids
dc.identifier.doi10.1016/jsupflu.2011.02.009
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
drac.iddocument9527561
dc.description.versionPostprint (published version)
upcommons.citation.authorRamírez, E.; Mayorga, M.; Cuevas, D.; Recasens, F.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameJournal of supercritical fluids
upcommons.citation.volume57
upcommons.citation.number3
upcommons.citation.startingPage143
upcommons.citation.endingPage154
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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain