María José Rivero, Alfredo Ortiz and Rafael Ortiz attended the World Hydrogen Technologies Convention (WHTC) 2019, which took place last June 2-7 in Tokyo (Japan). Maria Jose presented the work “Waste Upgrading with Photocatalytic Hydrogen Recovery. Stability of TiO2-Based Materials”, meanwhile Alfredo Ortiz and Rafael Ortiz presented the work “Valorization of Coke Oven Gas waste stream applied in a Spark Ignition Engine”.