168502 20260209162330.0 doi 10.1016/j.ecmx.2026.101563 sideral 147929 ART-2026-147929 eng García Mariaca, Alexander Universidad de Zaragoza (orcid)0000-0003-2484-2504 Experimental evaluation of zeolite 13X and activated carbon as adsorbents in a carbon capture system for ICE exhaust gases 2026 Given the urgent need to mitigate climate change, reducing CO2 emissions produced by internal combustion engines (ICEs) remains a critical challenge in the transport sector. Onboard carbon capture (CC) systems have emerged as a promising alternative, attracting growing research interest in recent years. However, most studies are limited to simulations, with experimental evidence still scarce. Based on the above, this study experimentally evaluates zeolite 13X (Z13) and activated carbon (AC) as adsorbents for CO2 capture in ICEs. For this purpose, an adsorption-based CC system was integrated into the exhaust duct of an ICE operating under partial loads and at two engine speeds. The experimental data were subsequently employed to develop a simulation case study aimed at performing an energy assessment of a carbon capture and storage (CCS) system based on temperature swing adsorption. The results show that the adsorbent Z13 demonstrated a 13 % higher CO2 adsorption capacity and a 33 % longer capture duration than AC, though average carbon capture rates (CCR) remained moderate (25 % for Z13 and 16 % for AC). The case study results showed that the carbon capture and storage (CCS) system with Z13 achieves a maximum CCR of up to 37 %, an energy penalty of approximately 30 % of the engine’s power output and an average energy consumption for CO2 capture of 3900 kJ/kgCO2. Conversely, the CCS system with AC did not provide suitable CCR or energy performance under any scenario. The case study also demonstrates that the CCS system has a better performance when the engine is operated at medium or higher loads. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MICINN/PID2021-125137OB-I00 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Llera Sastresa, Eva Universidad de Zaragoza (orcid)0000-0002-6103-7136 Moreno, Francisco Universidad de Zaragoza (orcid)0000-0002-6508-6998 Carreno Sayago, Uriel Fernando 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 29 (2026), 101563 [12 pp.] Energy Conversion and Management: X 2590-1745 3802776 http://zaguan.unizar.es/record/168502/files/texto_completo.pdf Versión publicada 2649557 http://zaguan.unizar.es/record/168502/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:168502 articulos driver 2026-02-09-14:42:17 ARTICLE