150720 20251017144642.0 doi 10.1016/j.jece.2025.115645 sideral 142877 ART-2025-142877 eng Bailera, Manuel Universidad de Zaragoza (orcid)0000-0002-9174-9820 Testing Ni-based catalysts for the methanation of industrial gases at different levels of sulfur poisoning: From catalysts formulation optimization to kinetics 2025 Access copy available to the general public Unrestricted Decarbonizing the industry is key to achieving goals against climate change. The use of synthetic fuels and their regeneration is promoted, utilizing the industry's own emissions. However, implementing processes like carbon dioxide methanation for synthetic natural gas generation is a challenge in these industries due to the presence of impurities, such as sulfur. The objective of this study is to compare different supports and promoters for a nickel-based CO2 methanation catalyst at various levels of sulfur poisoning (0–1 wt%). Based on the results obtained, alumina emerged as the optimal catalyst support, showcasing superior catalytic performance compared to other tested materials across all examined reaction temperatures. Additionally, calcium (1 wt%) was identified as the most effective promoter, demonstrating the highest performance not only in unpoisoned catalysts but also when comparing samples with 1 wt% of sulfur poisoning. Additionally, the first sulfur-dependent kinetic model for methanation was developed, for the best Ni/Support and Ni/Promoter/Support catalyst. The kinetic model is valid for 0 – 1.0 wt% S poisoning, 1 bar, 200 – 450 °C, and 86 100 ml h−1 gcat−1 (error within ±5 %). info:eu-repo/grantAgreement/ES/AEI/RYC2022-038283-I info:eu-repo/grantAgreement/EUR/MICINN/TED2021-130000B–I00 info:eu-repo/semantics/embargoedAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Bacariza, Carmen Teixeira, Paula Legaz, Jorge García-Mariaca, Alexander Universidad de Zaragoza (orcid)0000-0003-2484-2504 Peña, Begoña Universidad de Zaragoza (orcid)0000-0001-9967-5806 Lisbona, Pilar Universidad de Zaragoza (orcid)0000-0002-2306-6729 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 13, 2 (2025), 115645 [15 pp.] J. env. chem. eng. Journal of Environmental Chemical Engineering 2213-3437 5836637 http://zaguan.unizar.es/record/150720/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2027-01-28 1577655 http://zaguan.unizar.es/record/150720/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2027-01-28 oai:zaguan.unizar.es:150720 articulos driver 2025-10-17-14:32:30 ARTICLE