Method and apparatus for cryogenic separation of air

The invention relates to a method for the cryogenic separation of air, in which an air separation plant (100-400) having a first rectification column (11) and a second rectification column (12) is used, in which cooled compressed air is supplied to the first rectification column (11) and a liquid fr...

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Bibliographische Detailangaben
1. Verfasser:	GOLOUBEV DIMITRI
Format:	Patent
Sprache:	chi ; eng
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 REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for the cryogenic separation of air, in which an air separation plant (100-400) having a first rectification column (11) and a second rectification column (12) is used, in which cooled compressed air is supplied to the first rectification column (11) and a liquid from the first rectification column (11) or a liquid formed therefrom is supplied to the second rectification column (12). The overhead gas of the first rectification column (11) is condensed by means of a first condenser evaporator (111) and the liquid from the second rectification column (12) or the liquid formed therefrom is evaporated to obtain a first evaporation product. The overhead gas of the second rectification column (11) is condensed by means of a second condenser evaporator (121) and further liquid from the second rectification column (12) or liquid formed therefrom is evaporated to obtain a second evaporation product. A first portion of the second evaporation product is expanded, heated and discharged f