Distillation process to separate mixtures containing three or more components

The heat requirement of conventional distillation processes which separate feed mixtures containing three or more components is reduced by sending a liquid bottoms stream 20 (or gaseous overhead stream 230) containing two or more components from an earlier column to a subsequent column and returning...

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Bibliographische Detailangaben
Hauptverfasser:	AGRAWAL, RAKESH, FIDKOWSKI, ZBIGNIEW TADEUSZ
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:	The heat requirement of conventional distillation processes which separate feed mixtures containing three or more components is reduced by sending a liquid bottoms stream 20 (or gaseous overhead stream 230) containing two or more components from an earlier column to a subsequent column and returning a vapor stream 227 (or liquid stream 337) between the same locations in the two columns. A portion 24 (234) of the liquid bottoms stream 20 (overhead vapor stream 230) is at least partially vaporized (condensed) prior to feeding to the second column or heat is added (removed) from the second column between the feed location of the entire liquid stream 20 (gaseous stream 230) and the bottom (top) of the second column.