Process for removing acidic gases and/or acids from a flue gas stream generated by a combustion process of fossil fuel, preferably generated in an oxyfuel process of a power plant, wherein water is removed from a compressed flue gas stream in a compressed flue gas desiccant dryer of a gas processing unit, wherein acidic gases and/or acids are removed in the gas processing unit by use of an acid removal bed upstream of the desiccant dryer.
