PROCESS FOR DISTILLING A CRUDE COMPOSITION IN A RECTIFICATION PLANT INCLUDING AN INDIRECT HEAT PUMP

The present invention relates to a process for purifying a crude composition comprising the rectification of the crude composition in a rectification plant comprising a rectification column comprising an overhead condenser for condensing the head fraction and a reboiler for evaporating the bottom fr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NI, Lin Feng, ZUBER, Laurent, Dr
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The present invention relates to a process for purifying a crude composition comprising the rectification of the crude composition in a rectification plant comprising a rectification column comprising an overhead condenser for condensing the head fraction and a reboiler for evaporating the bottom fraction, wherein the difference between the temperature of the head fraction and the temperature of the bottom fraction is at most 20°C, wherein a heat pump operates between the overhead condenser and the reboiler, wherein the heat pump is completely separated from the process to prevent any contamination, and wherein the heat pump is an indirect heat pump and is operated with water or methanol as refrigerant.