The invention relates to a method for producing hydrogen and power from a synthesis gas that contains CO, H2 and H2S. The synthesis gas is separated into two partial streams, vapor is added to the first partial stream of synthesis gas, out a CO conversion is carried out at a temperature of 220° C. to 500° C., pure hydrogen is obtained from the converted synthesis gas in a pressure swing absorption device and a residual PSA gas is produced. The second partial stream of synthesis gas is fed to a power-generating gas turbine for combustion, H2S and optionally other sulfur-containing components are removed in one or more separators that are arranged in any position in the process, however, before entry into the gas turbine, the residual PSA gas is mixed with nitrogen, the gas mixture so obtained is compressed and the compressed gas mixture is admixed to the partial stream of synthesis gas that is fed to the power-generating gas turbine.