The Petrogenium Hydrogenation Technologies in Steam Crackers course will provide insight into catalysts and technologies for the selective and full hydrogenation of ethylene, MAPD, butadiene, and the pyrolysis gasoline fraction (pygas) in steam crackers and will raise awareness of design aspects and catalyst properties on optimum operation of their hydrogenation facilities to plant engineers and operation staff. The performance of benchmark units will be presented and methods for improvements towards benchmark performance of plants. The influence of impurities and special operation, such as start-up, regeneration etc. on plant economics, including catalyst lifetime, will be addressed. Safety aspects will also be covered.