English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/112317
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
DC FieldValueLanguage
dc.contributor.authorGil Matellanes, María Victoria-
dc.contributor.authorFermoso Domínguez, Javier-
dc.contributor.authorRubiera González, Fernando-
dc.contributor.authorChen, De-
dc.identifier.citationCatalysis Today 242 Part A: 19-34 (2015)es_ES
dc.description.abstractHigh-purity H2 was produced by the sorption enhanced steam reforming (SESR) of acetic acid, a model compound of bio-oil obtained from the fast pyrolysis of biomass, in a fluidized bed reactor. A Pd/Ni–Co hydrotalcite-like material (HT) and dolomite were used as reforming catalyst and CO2 sorbent, respectively. The hydrogen yield and purity were optimized by response surface methodology (RSM) and the combined effect of the reaction temperature (T), steam-to-carbon molar ratio in the feed (steam/C) and weight hourly space velocity (WHSV) upon the sorption enhanced steam reforming process was analyzed. T was studied between 475 and 675 °C, steam/C ratio between 1.5 and a 4.5 mol/mol and WHSV between 0.893 and 2.679 h−1. H2 yield, H2 selectivity and H2 purity, as well as the CH4, CO and CO2 concentrations in the effluent gas, were assessed. The operating temperature proved to be the variable that had the greatest effect on the response variables studied, followed by the WHSV and the steam/C ratio. The results show that the H2 yield, H2 selectivity and H2 purity increased, while the CH4, CO and CO2 concentrations decreased, concurrently with the temperature up to around 575–625 °C. Higher values of the steam/C ratio and lower WHSV values favored the H2 yield, H2 selectivity and H2 purity, and reduced the CH4 concentration. It was found that the SESR of acetic acid at atmospheric pressure and 560 °C, with a steam/C ratio of 4.50 and a WHSV of 0.893 h–1 gave the highest H2 yield of 92.00%, with H2 purity of 99.53% and H2 selectivity of 99.92%, while the CH4, CO and CO2 concentrations remained low throughout (0.04%, 0.06% and 0.4%, respectively). The results also suggested that a slow CO2 capture rate led to a poor level of hydrogen production when the SESR process was carried out at low temperatures, although this can be improved by increasing the sorbent/catalyst ratio in the fluidized bed.es_ES
dc.description.sponsorshipThe financial support from the Research Council of Norway (RCN) is gratefully acknowledged. The authors thank Franefoss Miljøkalk A/S (Norway) for supplying Arctic dolomite. M.V. Gil acknowledges funding from the CSIC JAE-Doc program, Spain, co-financed by the European Social Fund, and support from the Research Council of Norway through the Yggdrasil program.es_ES
dc.subjectHydrogen productiones_ES
dc.subjectSorption enhanced steam reforming (SESR)es_ES
dc.subjectPd/Ni–Co catalystes_ES
dc.subjectResponse surface methodologyes_ES
dc.subjectFluidized bedes_ES
dc.titleH2 production by sorption enhanced steam reforming of biomass-derived bio-oil in a fluidized bed reactor: An assessment of the effect of operation variables using response surface methodologyes_ES
dc.description.peerreviewedPeer reviewedes_ES
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
H2_production_Gil.pdf1,68 MBAdobe PDFThumbnail
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.