US 11,999,678 B2
Process and plant for producing methanol
Marc Wagner, Saint Maur des Fosses (FR); Timm Schuhmann, Bensheim (DE); Frank Castillo-Welter, Friedrichsdorf (DE); and Tobias Oelmann, Bad Vilbel (DE)
Assigned to L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude, Paris (FR)
Filed by L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Paris (FR)
Filed on Dec. 13, 2022, as Appl. No. 18/080,394.
Claims priority of application No. 21216065 (EP), filed on Dec. 20, 2021.
Prior Publication US 2023/0192576 A1, Jun. 22, 2023
Int. Cl. C07C 29/152 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01)
CPC C07C 29/152 (2013.01) [B01J 19/0013 (2013.01); B01J 19/245 (2013.01); B01J 2219/0004 (2013.01); B01J 2219/00051 (2013.01); B01J 2219/00164 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A process for producing methanol, comprising:
a) providing and compressing a make-up gas stream, wherein the make-up gas stream comprises at least one carbon oxide and hydrogen;
b) reacting a synthesis gas stream in a synthesis stage over a solid methanol synthesis catalyst, wherein raw methanol and a residual gas stream are obtained and wherein the raw methanol after cooling and condensation as liquid reaction product and the residual gas stream are discharged from the synthesis stage;
c) combining the residual gas stream with the make-up gas stream to obtain the synthesis gas stream,
wherein the residual gas stream and the make-up gas stream are combined using a jet pump, wherein the compressed make-up gas stream is supplied to the jet pump as motive medium via its motive media connection at a pressure p1 and the residual gas stream is supplied to the jet pump as suction medium via its suction port at a pressure p3 and wherein the synthesis gas stream is discharged from the jet pump via its pressure port at a pressure p2 and subsequently supplied to the synthesis stage and wherein p1>p2>p3.