Argentina | Artículos de revistas
dc.creatorGarcía, Juan Rafael
dc.creatorFalco, Marisa Guadalupe
dc.creatorSedran, Ulises Anselmo
dc.date.accessioned2018-04-23T19:27:14Z
dc.date.accessioned2018-11-06T11:25:43Z
dc.date.available2018-04-23T19:27:14Z
dc.date.available2018-11-06T11:25:43Z
dc.date.created2018-04-23T19:27:14Z
dc.date.issued2017-11
dc.identifierGarcía, Juan Rafael; Falco, Marisa Guadalupe; Sedran, Ulises Anselmo; Intracrystalline mesoporosity over Y zeolites. Processing of VGO and resid-VGO mixtures in FCC; Elsevier Science; Catalysis Today; 296; 11-2017; 247-253
dc.identifier0920-5861
dc.identifierhttp://hdl.handle.net/11336/43106
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1851452
dc.description.abstractPrototypes of FCC catalysts containing 30 %wt. Y zeolite with different intracrystalline mesoporosity generated by alkaline desilication, on an inert silica matrix, were tested in cracking a conventional vacuum gasoil (VGO) feedstock, alone and mixed with an atmospheric tower residue (ATR). The experiments were performed in a fluidized bed CREC Riser Simulator reactor (reaction time: 5-30 s, temperature: 550 °C, catalyst/feedstock: 4.5). Independently of the catalyst, the conversions of the ATR-VGO mixture were higher than those of the VGO at the same conditions. With both feedstocks, the catalyst including the zeolite with increased intracrystalline mesoporosity and higher acidity showed a higher observed activity than the catalyst with the parent zeolite. In addition, the catalyst with the modified zeolite showed higher selectivity to LCO, which is an intermediate product in FCC and a contributor to the diesel pool, especially with the ATR-VGO mixture. This effect was the consequence of the enhanced diffusion transport of primary product molecules in the zeolite pore system which, in diffusing faster, have fewer chances to be further cracked. The catalyst with higher mesoporosity showed higher coke selectivity, coke being less condensed, due to the higher free volume in the porous system allowing accommodate precursors of coke.
dc.languageeng
dc.publisherElsevier Science
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586117302286
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cattod.2017.04.010
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectINTRACRYSTALLINE MESOPOROSITY
dc.subjectCATALYTIC CRACKING
dc.subjectY ZEOLITE
dc.subjectDIFFUSION INHIBITIONS
dc.subjectRESIDS
dc.subjectFUELS
dc.titleIntracrystalline mesoporosity over Y zeolites. Processing of VGO and resid-VGO mixtures in FCC
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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