117989 20240319081017.0 doi 10.1016/j.energy.2022.124720 sideral 129401 ART-2022-129401 eng Bailera, M. Universidad de Zaragoza (orcid)0000-0002-9174-9820 Synthetic natural gas production in a 1 kW reactor using Ni–Ce/Al2O3 and Ru–Ce/Al2O3: Kinetics, catalyst degradation and process design 2022 Access copy available to the general public Unrestricted Nickel and ruthenium promoted by ceria were compared as catalyst active phase for the production of synthetic natural gas in a 1 kW fixed-bed reactor (49 cm in length and 3 cm in diameter). Both catalysts were tested in a broad range of conditions: 250–450 °C, 8000–16000 h−1 GHSV, 3.5–5.5H2/CO2 ratio, and atmospheric pressure. The Ni-based catalyst presented higher CO2 conversion and lower reduction of BET area and metal dispersion after utilization. Two kinetic models were elaborated according to the performance of the catalysts in this reactor. The minimum mean squared error between the kinetic model and experiments was 3.0% for the Ru-based catalyst and 1.4% for the Ni-based catalyst. The kinetic model of the Ni-based catalyst was implemented in Aspen Plus to evaluate potential methanation plant designs. The simulation minimized the amount of catalyst required to reach 95 vol% of CH4, within proper technical limits (GHSV 5000 h−1 and temperature 300 °C). The 3-reactor plant was the most adequate configuration. The total catalyst mass was 3.26 kg per kg/h of SNG, the heat removed from the reactors was 10.8 MJ/kgSNG, and the preheating necessity was 4.90 MJ/kgSNG. The electrolysis energy consumption was 86.4 MJ/kgSNG. info:eu-repo/grantAgreement/ES/DGA/T46-17R info:eu-repo/grantAgreement/EC/H2020/887077/EU/Decarbonisation of carbon-intensive industries (Iron and Steel Industries) through Power to gas and Oxy-fuel combustion/DISIPO This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 887077-DISIPO info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2016-76850-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 8.9 2022 THERMODYNAMICS 3 / 63 = 0.048 2022 Q1 T1 ENERGY & FUELS 23 / 119 = 0.193 2022 Q1 T1 1.989 2022 Building and Construction 2022 Q1 Civil and Structural Engineering 2022 Q1 Electrical and Electronic Engineering 2022 Q1 Energy (miscellaneous) 2022 Q1 Energy Engineering and Power Technology 2022 Q1 Renewable Energy, Sustainability and the Environment 2022 Q1 Industrial and Manufacturing Engineering 2022 Q1 Management, Monitoring, Policy and Law 2022 Q1 Mechanical Engineering 2022 Q1 Modeling and Simulation 2022 Q1 Pollution 2022 Q1 Fuel Technology 2022 Q1 14.9 2022 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Lisbona, P. Universidad de Zaragoza (orcid)0000-0002-2306-6729 Peña, B. Universidad de Zaragoza (orcid)0000-0001-9967-5806 Alarcón, A. Guilera, J. Perpiñán, J. Universidad de Zaragoza (orcid)0000-0002-7743-0426 Romeo, L. M. Universidad de Zaragoza (orcid)0000-0001-7379-6159 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 256 (2022), 124720 [16 pp.] Energy Energy 0360-5442 2022884 http://zaguan.unizar.es/record/117989/files/texto_completo.pdf Postprint 2690674 http://zaguan.unizar.es/record/117989/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:117989 articulos driver 2024-03-18-15:44:26 ARTICLE