PROCESS AND APPARATUS FOR THE SEPARATION OF A STREAM CONTAINING CARBON DIOXIDE, WATER AND AT LEAST ONE LIGHT IMPURITY INCLUDING A SEPARATION STEP AT SUBAMBIENT TEMPERATURE

In a process for the separation of a stream containing carbon dioxide, water and at least one light impurity including a separation step at subambient temperature, the feed stream (1,3) is compressed in a compressor (C1, C2, C3) comprising at least two stages to form a compressed feed stream (7), th...

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Bibliographische Detailangaben
Hauptverfasser:	HASSE, David J, KULKARNI, Sudhir S, DUBETTIER-GRENIER, Richard, LECLERC, Mathieu, DARDE, Arthur, TERRIEN, Paul
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING MIXTURES BY PRESSURE AND COLD TREATMENT PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRIGERATION OR COOLING SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	In a process for the separation of a stream containing carbon dioxide, water and at least one light impurity including a separation step at subambient temperature, the feed stream (1,3) is compressed in a compressor (C1, C2, C3) comprising at least two stages to form a compressed feed stream (7), the compressed feed stream is purified in an adsorption unit (A1,A2) to remove water and form a dried compressed stream (9, 11), the dried compressed stream or a stream derived therefrom is cooled to a subambient temperature and separated by partial condensation and/or distillation in a separation apparatus (19, 31), liquid enriched in carbon dioxide (37, 43) is removed from the separation apparatus, the adsorption unit is regenerated using a regeneration gas (25, 53) and the regeneration gas is formed by separating, by permeation in a permeation unit (21, 51), the dried compressed stream (9) or a gas (19) derived therefrom, the permeate of the permeation unit constituting the regeneration gas.