Methane chloride double-effect rectification system

The utility model belongs to the field of rectification separation, and relates to a methane chloride double-effect rectification system which comprises a dichloromethane rectification tower and a trichloromethane rectification tower, and a tower bottom extraction port of the dichloromethane rectifi...

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Bibliographische Detailangaben
Hauptverfasser:	HOU WENGUI, LI HAIHUA, TU ZHENYU, LIU GUOCHENG, LI MINGZHU, XIE YINGQIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model belongs to the field of rectification separation, and relates to a methane chloride double-effect rectification system which comprises a dichloromethane rectification tower and a trichloromethane rectification tower, and a tower bottom extraction port of the dichloromethane rectification tower is connected with a feeding port of the trichloromethane rectification tower through a pipeline. A tower kettle of the dichloromethane rectifying tower is provided with a dichloromethane rectifying tower heat exchange reboiler, and a tower top extraction port of the trichloromethane rectifying tower is connected with a shell pass inlet of the dichloromethane rectifying tower heat exchange reboiler through a first pipeline; and a shell pass outlet of the heat exchange reboiler of the dichloromethane rectifying tower is connected with a tower top reflux inlet of the trichloromethane rectifying tower through a second pipeline. According to the utility model, double-effect thermal coupling is adopted, and