A quantitative risk analysis to a central pressurized storage tank for gaseous hydrogen has beenperformed to attend requirements of licensing procedures established by the State EnvironmentAgency of S?o Paulo State, Brazil. Gaseous hydrogen is used to feed the reactor to promotehydrogenation at the surfactant unit. HAZOP was the hazard identification technique selected. Systemcomponents failures were defined by event and fault tree analysis. Quantitative risk analysis wascomplied to define the acceptability concepts on societal and individual risks required by the StateEnvironmental Agency to approve the installation operation license. Acceptable levels to publicsociety from the analysis were reached. Safety recommendations to the gaseous hydrogen central wereproposed to assure minimization of risk to the near-by community, operators, environment andproperty.