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OwnerAndreas SELIGER, Thomas HASELSTEINER +2inventors
InventorsAndreas SELIGER, Thomas HASELSTEINER, Josef SCHWARZHUBER, Ole MÜLLER-THORWART
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A process and an apparatus for producing a hydrogen product, in which a carbonaceous feed is converted by reforming and water gas conversion in order to obtain a hydrogen- and carbon dioxide-containing gas mixture referred to as synthesis gas, from which, in a first CO2 separation step, the removal of carbon dioxide gives rise to crude hydrogen, and this is processed by at least one further process step to give the hydrogen product, wherein process heat is obtained by combustion of a fuel and carbon dioxide separated from the synthesis gas is disposed of by sequestration or sent to a physical use. The characteristic feature here is that the synthesis gas is separated into a first and a second synthesis gas substream, of which the first is treated in the first CO2 separation step in order to obtain the crude hydrogen.
Process for producing a hydrogen product, in which a carbonaceous feed is converted by reforming and water gas conversion in order to obtain a hydrogen- and carbon dioxide-containing gas mixture referred to as synthesis gas, from which, in a first CO2 separation step, the removal of carbon dioxide gives rise to crude hydrogen, and this is processed by at least one further process step to give the hydrogen product, wherein process heat is obtained by combustion of a fuel and carbon dioxide separated from the synthesis gas is disposed of by sequestration or sent to a physical use, wherein the synthesis gas is separated into a first and a second synthesis gas substream, of which the first is treated in the first CO2 separation step in order to obtain the crude hydrogen, while a combustion gas consisting largely of hydrogen is formed from the second synthesis gas substream by the removal of carbon dioxide in a second CO2 separation step and is combusted to obtain process heat.
Apparatus for producing a hydrogen product, comprising a reforming device and a water gas converter connected to the reforming device, via which a carbonaceous feed can be converted into a synthesis gas containing hydrogen and carbon dioxide by reforming and water gas conversion, a first CO2 separation device with which carbon dioxide can be separated from the synthesis gas in order to obtain crude hydrogen, which can give rise to the hydrogen product in at least one processing device connected to the first CO2 separation device, and a combustion device in which a fuel can be combusted to generate process heat, wherein carbon dioxide separated from the synthesis gas can be disposed of by sequestration or sent to a physical use, wherein it comprises a second CO2 separation device which is connected to the first CO2 separation device via a flow divider, via which the synthesis gas can be divided into a first synthesis gas substream for introduction into the first CO2 separation device and a second synthesis gas substream for introduction into the second CO2 separation device, wherein the crude hydrogen can be obtained from the first synthesis gas substream in the first CO2 separation device and carbon dioxide can be separated from the second synthesis gas substream in the second CO2 separation device in order to obtain a combustion gas consisting largely of hydrogen for use in the combustion device.
Dependencies are inferred from the claim text.