Method for synthesis of methanol with CO, CO2 and H#[-2]

The present invention discloses a method for synthesizing methanol from CO, CO2 and H2. The method comprises the following steps: reaction gas which comes out from a synthesis tower is subjected to condensation, cooling and separation for removal of generated coarse methanol; unreacted gas which is...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: QIU CHUANGUI, LIN JING, CHENG XUEQING, GU GONGWEI, WANG XIAODONG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The present invention discloses a method for synthesizing methanol from CO, CO2 and H2. The method comprises the following steps: reaction gas which comes out from a synthesis tower is subjected to condensation, cooling and separation for removal of generated coarse methanol; unreacted gas which is exhausted from a separator contains saturated methanol vapor under the working conditions (with a pressure between 4.0 and 10.0 MPa, and at a temperature of 40 DEG C), and the methanol is reclaimed by the high-efficiency washing method or the high-efficiency absorption method; most of the unreacted gas after removal of the methanol vapor is mixed with virgin gas and enters into a methanol synthesis system for cycle use; a small part of the unreacted gas enters into a H2 reclaiming system, and the H2 which is reclaimed through a H2 reclaiming device is mixed with synthetic gas and enters into a synthesis system; and a reclaimed methanol solution is mixed with the generated coarse methanol and sent into a rectificati