METHOD OF PRODUCTION OF METHANOL Russian patent published in 2008 - IPC C07C31/04 C07C29/154 

FIELD: chemistry.

SUBSTANCE: method includes contact of gas mixture containing carbon oxides and hydrogen ballasted down with nitrogen with copper-containing catalyst under heating, pressure and definite rate velocity of feeding into reactor. Reactor unit consists of two adiabatic-type reactors connected with a pipeline; the original gas mixture containing CO - 10-15 % v/v, CO₂ - 0.3-5.0 % v/v, H₂ - 15-40 % v/v, N₂ -40.0-74.7 % v/v and volumetric ratio H₂/(CO+CO₂) equal to 1.00-2.91, at 200-260°C and pressure 3.5-5.0 MPa with rate velocity 2000-5000 h^-1 is fed into the first reactor with larger main part of unconverted gas fed to circulation and produced at the outlet of the second reactor cooled to 15-20°C and further purified to remove methanol in tower washer and compressed; then the reaction mixture from the first reactor is fed into the second reactor along with the rest minor part of circulating gas indicated above as quench - cold circulation gas fed into the pipeline between the two rectors.

EFFECT: method allows increasing methanol yield, efficiency of the process and reducing energy consumption.

4 cl, 3 tbl, 1 dwg, 1 exsid1190496