US 12,030,838 B2
Method and system for the production of methanol
Alexander Schulz, Frankfurt (DE); and Steffen Schirrmeister, Muelheim an der Ruhr (DE)
Assigned to thyssenkrupp Uhde GmbH, Dortmund (DE); and thyssenkrupp AG, Essen (DE)
Filed by thyssenkrupp Industrial Solutions AG, Essen (DE); and thyssenkrupp AG, Essen (DE)
Filed on Mar. 7, 2022, as Appl. No. 17/688,371.
Application 17/688,371 is a division of application No. 16/321,195, abandoned, previously published as PCT/EP2017/068859, filed on Jul. 26, 2017.
Claims priority of application No. 10 2016 213 668.2 (DE), filed on Jul. 26, 2016.
Prior Publication US 2022/0185751 A1, Jun. 16, 2022
Int. Cl. C07C 29/151 (2006.01); C07C 29/74 (2006.01); C07C 29/78 (2006.01); C07C 29/80 (2006.01); C07C 31/04 (2006.01); C10J 1/00 (2006.01); C10L 3/08 (2006.01); C25B 1/04 (2021.01); C25B 15/08 (2006.01); F25J 3/02 (2006.01)
CPC C07C 29/1512 (2013.01) [C07C 29/1518 (2013.01); C07C 29/78 (2013.01); C07C 29/80 (2013.01); C10J 1/00 (2013.01); C10L 3/08 (2013.01); C25B 1/04 (2013.01); C25B 15/08 (2013.01); F25J 3/0223 (2013.01); C10J 2300/1665 (2013.01); C10L 2290/08 (2013.01); C10L 2290/10 (2013.01); C10L 2290/24 (2013.01); C10L 2290/38 (2013.01); C10L 2290/46 (2013.01); C10L 2290/54 (2013.01); C10L 2290/543 (2013.01); Y02E 60/36 (2013.01); Y02P 20/133 (2015.11)] 18 Claims
OG exemplary drawing
 
1. A process for preparing methanol comprising:
feeding a methanol containing product stream obtained from a methanol synthesis reaction that reacts carbon dioxide with hydrogen to a high-pressure separator and a low-pressure separator where gas streams containing volatile components are respectively separated off from the methanol-containing product stream;
feeding the methanol-containing product stream, after the gas streams are separated off, to a distillation step where a gas stream containing volatile components and water are separated off from the methanol-containing product stream;
feeding the gas stream that has been separated off in the low-pressure separator to the distillation step; and
recirculating the gas stream containing volatile components that has been separated off in the distillation step at least partly into a mixing and compression section located upstream of a reactor that conducts the methanol synthesis reaction.