US 12,215,072 B2
Method and system for the synthesis of methanol
Alexander Schulz, Frankfurt (DE)
Assigned to GASCONTEC GMBH, Bad Homburg V. D. Höhe (DE); and THYSSENKRUPP UHDE GMBH, Dortmund (DE)
Appl. No. 17/613,702
Filed by GASCONTEC GMBH, Bad Homburg v. d. Höhe (DE); and thyssenkrupp Uhde GmbH, Dortmund (DE)
PCT Filed May 26, 2020, PCT No. PCT/EP2020/064551
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2020/239754, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 19177102 (EP), filed on May 28, 2019; and application No. 19180022 (EP), filed on Jun. 13, 2019.
Prior Publication US 2022/0220052 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 29/152 (2006.01); B01J 19/24 (2006.01)
CPC C07C 29/152 (2013.01) [B01J 19/2465 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for the synthesis of methanol, wherein a carbon-containing energy carrier stream is fed to a synthesis gas reactor arrangement for obtaining a synthesis gas stream with hydrogen and oxides of carbon, wherein the synthesis gas stream is fed to a heat recovery device for recovering heat from the synthesis gas stream and thereafter to a synthesis gas compressor for increasing pressure, wherein at least a portion of the pressure-increased synthesis gas stream is fed to a first reactor stage of a methanol reactor arrangement for partial conversion into methanol, wherein a residual gas stream with unreacted oxides of carbon is obtained from the methanol reactor arrangement, the residual gas stream being fed to a recycle compressor for increasing the pressure of the residual gas stream, wherein the pressure-increased residual gas stream is fed to the methanol reactor arrangement for partial conversion into methanol, wherein a recovery stream from an unreacted residual gas from the first reactor stage is fed to a hydrogen recovery arrangement for obtaining a H recycle stream, the H recycle stream having unreacted hydrogen from the unreacted residual gas, the unreacted hydrogen of the H recycle stream being fed again to the first reactor stage for at least partial conversion into methanol, wherein the pressure of at least a portion of the unreacted hydrogen of the H recycle stream from the first reactor stage up to its feed again into the first reactor stage is increased along with the unreacted oxides of carbon by means of the recycle compressor.