Process for the production of pure carbon monoxide and hydrogen from a gaseous or vaporous input stream containing hydrocarbons, preferably methane or naphtha, comprising the following steps: (a) introducing the hydrocarbons-containing input stream and a steam stream into a steam reforming unit and at least partially converting the hydrocarbons present in the input stream with steam under steam reforming conditions to afford a raw synthesis gas stream containing carbon monoxide, hydrogen, water, carbon dioxide and methane, (b) discharging the raw synthesis gas stream from the steam reforming unit and introducing same into a carbon dioxide removal unit, (c) resolving the raw synthesis gas stream in the carbon dioxide removal unit under carbon dioxide removal conditions into a predominantly carbon dioxide-containing stream and into a carbon dioxide-depleted synthesis gas stream, discharging both streams from the carbon dioxide removal unit, (d) introducing the carbon dioxide-depleted synthesis gas stream into a drying unit, discharging a water-depleted, dried synthesis gas stream from the drying unit, (e) introducing the dried synthesis gas stream into a low-temperature fractionation unit, multistage resolution of the dried synthesis gas stream under low-temperature fractionation conditions into a pure carbon monoxide product gas stream, a hydrogen-enriched gas stream, a methane-containing fractionation gas stream and a carbon monoxide- and hydrogen-containing flash gas stream, discharging the gas streams obtained in the multistage resolution from the low-temperature fractionation unit, (f) supplying the hydrogen-enriched gas stream to a pressure swing adsorption unit, resolving the hydrogen-enriched gas stream in the pressure swing adsorption unit into a pure hydrogen product gas stream and a PSA offgas stream, discharging both streams from the pressure swing adsorption unit, (g) supplying at least a portion of one or more streams selected from a group comprising: - the predominantly carbon dioxide-containing stream, - the methane-containing fractionation gas stream, - the carbon monoxide- and hydrogen-containing flash gas stream, to a compressor unit which comprises at least two compressor stages connected in parallel, wherein the at least a portion of the one or more streams is introduced to one or more of the compressor stages, (h) discharging a compressed first recycle stream from the compressor unit. (a) introducing the hydrocarbons-containing input stream and a steam stream into a steam reforming unit and at least partially converting the hydrocarbons present in the input stream with steam under steam reforming conditions to afford a raw synthesis gas stream containing carbon monoxide, hydrogen, water, carbon dioxide and methane, (b) discharging the raw synthesis gas stream from the steam reforming unit and introducing same into a carbon dioxide removal unit, (c) resolving the raw synthesis gas stream in the carbon dioxide removal unit under carbon dioxide removal conditions into a predominantly carbon dioxide-containing stream and into a carbon dioxide-depleted synthesis gas stream, discharging both streams from the carbon dioxide removal unit, (d) introducing the carbon dioxide-depleted synthesis gas stream into a drying unit, discharging a water-depleted, dried synthesis gas stream from the drying unit, (e) introducing the dried synthesis gas stream into a low-temperature fractionation unit, multistage resolution of the dried synthesis gas stream under low-temperature fractionation conditions into a pure carbon monoxide product gas stream, a hydrogen-enriched gas stream, a methane-containing fractionation gas stream and a carbon monoxide- and hydrogen-containing flash gas stream, discharging the gas streams obtained in the multistage resolution from the low-temperature fractionation unit, (f) supplying the hydrogen-enriched gas stream to a pressure swing adsorption unit, resolving the hydrogen-enriched gas stream in the pressure swing adsorption unit into a pure hydrogen product gas stream and a PSA offgas stream, discharging both streams from the pressure swing adsorption unit, (g) supplying at least a portion of one or more streams selected from a group comprising: - the predominantly carbon dioxide-containing stream, - the methane-containing fractionation gas stream, - the carbon monoxide- and hydrogen-containing flash gas stream, to a compressor unit which comprises at least two compressor stages connected in parallel, wherein the at least a portion of the one or more streams is introduced to one or more of the compressor stages, - the predominantly carbon dioxide-containing stream, - the methane-containing fractionation gas stream, - the carbon monoxide- and hydrogen-containing flash gas stream, (h) discharging a compressed first recycle stream from the compressor unit.