78712 20200103141022.0 doi 10.1016/j.cep.2018.03.024 sideral 105887 ART-2018-105887 eng Gangurde, L.S. Synthesis, characterization, and application of ruthenium-doped SrTiO3 perovskite catalysts for microwave-assisted methane dry reforming 2018 Access copy available to the general public Unrestricted A series of ruthenium-doped strontium titanate (SrTiO3) perovskite catalysts were synthesized by conventional and microwave-assisted hydrothermal methods. The structure was analyzed by X-Ray diffraction (XRD) confirming the formation of the perovskite phase with some TiO2 anatase phase in all the catalysts. Microwave irradiation decreases the temperature and time of synthesis from 220 °C for 24 h (conventional heating) to 180 °C for 1h, without affecting the formation of perovskite. A 7 wt. % ruthenium-doped SrTiO3 catalyst showed the best dielectric properties, and thus its catalytic activity was evaluated for the methane dry reforming reaction under microwave heating in a custom fixed-bed quartz reactor. Microwave power, CH4:CO2 vol. % feed ratio and gas hourly space velocity (GHSV) were varied in order to determine the best conditions for performing dry reforming with high reactants conversions and H2/CO ratio. Stable maximum CH4 and CO2 conversions of ~99.5% and ~94%, respectively, at H2/CO ~0.9 were possible to reach with the 7 wt. % ruthenium-doped SrTiO3 catalyst exposed to maximum temperatures in the vicinity of 940 °C. A comparative theoretical scale-up study shows significant improvement in H2 production capability in the case of the perovskite catalyst compared to carbon-based catalysts. info:eu-repo/grantAgreement/EC/FP7/267348/EU/Towards Perfect Chemical Reactors:Engineering the Enhanced Control of Reaction Pathways at Molecular Level via Fundamental Concepts of Process Intensification/TOPCHEM info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.031 2018 ENGINEERING, CHEMICAL 45 / 138 = 0.326 2018 Q2 T1 ENERGY & FUELS 51 / 103 = 0.495 2018 Q2 T2 0.789 2018 Chemical Engineering (miscellaneous) 2018 Q1 Chemistry (miscellaneous) 2018 Q1 Process Chemistry and Technology 2018 Q1 Industrial and Manufacturing Engineering 2018 Q1 Energy Engineering and Power Technology 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Sturm, G.S.J. Valero-Romero, M.J. (orcid)0000-0002-4758-9380 Mallada, R. Universidad de Zaragoza (orcid)0000-0002-8701-9745 Santamaria, J. Universidad de Zaragoza Stankiewicz, A.I. Stefanidis, G.D. 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 127 (2018), 178-190 Chem. eng. process. CHEMICAL ENGINEERING AND PROCESSING 0255-2701 1158206 http://zaguan.unizar.es/record/78712/files/texto_completo.pdf Postprint 53878 http://zaguan.unizar.es/record/78712/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:78712 articulos driver 2020-01-03-14:02:10 ARTICLE