75654 20210121114546.0 doi 10.1016/j.ijhydene.2015.06.074 sideral 91191 ART-2015-91191 eng (orcid)0000-0002-9174-9820 Bailera, M. Universidad de Zaragoza Power to gas-oxyfuel boiler hybrid systems 2015 Access copy available to the general public Unrestricted One of the main future energy challenges is the management of electrical supply and demand, mainly motivated by the increase of share renewable energy in electricity mix. Thus, energy storage represents a crucial line of research and innovative solutions are currently being proposed. Power to Gas is a technology which stores excess of electrical energy in form of synthetic natural gas through the methanation of hydrogen produced by electrolysis. Methanation requires a source of CO2 which could be provided from the flue gas of an oxyfuel boiler. A further advantage of this hybridization comes from the supply of the oxygen generated by electrolysis to the oxyfuel combustion. In this study the concept is simulated using Aspen Plus® software and the performance of the combined system is analysed through the definition of a size ratio, ¿¿¿¿, that relates the flow of renewable hydrogen produced in electrolyser and the thermal output of the boiler. This variable has allowed defining different ranges of operation for a PtG- oxycombustion hybridized plant. Thus, for ¿¿¿¿ of 1.33, the air separation unit required as an auxiliary element for the oxyfuel boiler becomes unnecessary while if this ratio is increased up to 2.29, flue gas is completely consumed in the methanation plant and converted to synthetic natural gas. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.205 2015 CHEMISTRY, PHYSICAL 47 / 144 = 0.326 2015 Q2 T1 ENERGY & FUELS 28 / 88 = 0.318 2015 Q2 T1 ELECTROCHEMISTRY 8 / 27 = 0.296 2015 Q2 T1 1.27 2015 Condensed Matter Physics 2015 Q1 Renewable Energy, Sustainability and the Environment 2015 Q1 Fuel Technology 2015 Q1 Energy Engineering and Power Technology 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-2306-6729 Lisbona, P. (orcid)0000-0001-7379-6159 Romeo, L. M. Universidad de Zaragoza 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 40, 32 (2015), 10168-10175 Int. j. hydrogen energy International Journal of Hydrogen Energy 0360-3199 740137 http://zaguan.unizar.es/record/75654/files/texto_completo.pdf Postprint 68296 http://zaguan.unizar.es/record/75654/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:75654 articulos driver 2021-01-21-11:19:34 ARTICLE