SEPARATION OF CARBON DIOXIDE AND HYDROGEN

This invention relates to the recovery of carbon dioxide (26) and hydrogen (3,24) concentrated form from shifted a.synthesis gas stream comprising hydrogen and carbon dioxide thereby generating a carbon dioxide stream that is sequestered or used for enhanced oil recovery and a hydrogen stream that i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HINDERINK, ANTONIE PIETER, HARPER, ROGER NEIL, HUDA, BADRUL, VAN DER POL, EVERT, FORSYTH, JONATHAN ALEC
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS COMPOUNDS THEREOF HEAT PUMP SYSTEMS HEATING INORGANIC CHEMISTRY LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING METALLURGY MIXTURES BY PRESSURE AND COLD TREATMENT NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRIGERATION OR COOLING SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	This invention relates to the recovery of carbon dioxide (26) and hydrogen (3,24) concentrated form from shifted a.synthesis gas stream comprising hydrogen and carbon dioxide thereby generating a carbon dioxide stream that is sequestered or used for enhanced oil recovery and a hydrogen stream that is used as fuel for a power plant thereby generation electricity. In the process of the present invention a shifted synthesis gas stream is fed to a hydrogen selective membrane separation unit (M101) at a pressure of at least 50 bar gauge and the hydrogen rich permeate stream (3) is fed directly to the combustor of a gas turbine without any requirement to re-compress the hydrogen. The residual gas stream (carbon dioxide enriched stream) from the membrane separation unit is cooled using at least one, preferably, at least two external refrigeration stages (E-101, E-102, E-103, E-104) such that the hydrogen containing offgas (24) is also obtained at above the operating pressure of the combustor of the gas turbine.