HIDROGENERACIONES SELECTIVE ABOUT CATALYSTS MÉTALICOS RU, NOR CU SUPPORTED IN GRAPHITE.Summary: The work deals with four different types of hidrogenaciones selective in nature, which has designed various catalysts, utilizanco media, metals and modifiers is harealizado an exhaustive study of the characterization of the catalysts and in a very special way the different activities and selectivity in the reactions proposals. It noted the detailed and comprehensive study related to each of the different processes of hydrogenation.