METHOD FOR SYNTHESIS OF HYDROGEN-CONTAINING COMPOUND Russian patent published in 2023 - IPC C01B3/38 C01B3/50 C07C31/04 C07C29/152 B01D53/62 B01D53/14 B01D53/22 

FIELD: chemical industry.

SUBSTANCE: methanol synthesis process includes feeding synthesis gas stream 1 containing hydrogen and carbon oxides to system 2 including a methanol reactor for the purpose of partial conversion to methanol. In system 2 including a methanol reactor, methanol-containing tail gas stream 3 is obtained and fed at least partially to CO₂ separator 4, where recycle synthesis gas stream 5 and CO₂ product stream 6 are obtained. At the same time, flow 6 of the CO₂ product is characterized by a higher molar content of carbon dioxide than flow 3 of the methanol-containing residual gas. Recycle synthesis gas stream 5 is partially fed to system 2 including the methanol reactor and partially to hydrogen separator 7, where separated stream 8 is obtained, which has a higher molar hydrogen content than recycle synthesis gas stream 5. An installation for the synthesis of methanol is also proposed.

EFFECT: inventions make it possible to reduce energy consumption during operation of the installation and the load on the environment, to obtain carbon dioxide with a high degree of purity and high pressure.

15 cl, 3 dwg