RT Conference Proceedings T1 Hydrogen co-injection as a bridged technology for internal combustion engines A1 Molina-Ramírez, Sergio A1 Cortés-Reyes, Marina A1 Herrera-Delgado, María Concepción A1 Larrubia-Vargas, María Ángeles A1 Auñón-Hidalgo, Juan Antonio A1 Alemany-Arrebola, Luis José K1 Motores diesel AB In order to survive at media-term, diesel engines need a new approach for the use of the new fuel portfolio and to control the exhaust gas emissions. Hydrogen has been proposed as an alternative due to its excellent combustion properties, which could improve the combustion performance and emissions of internal combustion engines [1, 2]. The main drawback is that the location of a hydrogen cylinder inside the vehicles implies space and risk problems. Therefore, it could be produced on board and released into the air-intake of any biofuels fed to diesel engines. For that, the required optimized amount of hydrogen must be known, studying all engine parameters and emission in different driving modes for the establishment of the engine regions of operation in which partial replacement of fuel by hydrogen is effective as a bridged technology. PB International congress on Catalysis and Automotive Pollution Control – 12th edition CAPoC12 YR 2022 FD 2022 LK https://hdl.handle.net/10630/24738 UL https://hdl.handle.net/10630/24738 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 3 mar 2026