METHOD OF METHANOL OBTAINING Russian patent published in 2008 - IPC C07C31/04 C07C29/151 

FIELD: chemistry.

SUBSTANCE: invention pertains to the method of methanol obtaining through concentration of a gas mixture, containing carbon oxides and hydrogen, with copper-zinc catalyst at temperature of 200-290°C, pressure of 5-15 MPa, and volume rate of 3000-10000 h^-1. The concentrated gas contains the following, in vol %: H₂ - 64.0-75.5; Ar - 0.02-0.08; N₂ - 0.05-2.0; CH₄ - 1.0-3.6; CO - 10.7-19.4; CO₂ - 3.3-10.4. The concentrated gas is put into a reformer with volume rate of 800-2000 h^-1, mixed with carbon dioxide in volume ratio of (3-100) : 1 and together with cycled gases is passed through 4 catalyst zones of a horizontal reactor at volume ratios of (1.20-1.40):(0.85-0.95):(0.9-1.2):(0.9-1.1), divided by two boilers and one heat exchanger, with cooling of the reaction gas stream and separation of methanol in a separating device.

EFFECT: method allows perfecting the process of methanol obtaining with retention of the high level of the factors of the process and longer life service of the catalyst.

1 tbl, 2 dwg