METHOD AND APPARATUS FOR PRODUCING METHANOL Russian patent published in 2011 - IPC C07C31/04 C07C29/151 C01B3/50 B01J8/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a methanol synthesis method, during realisation of which natural gas and water vapour are fed into a primary conversion section where the two interact to form a gaseous mixture containing CO, CO₂, H₂ in stoichiometric excess and CH₄. Said gaseous mixture containing CO, CO₂, H₂ in stoichiometric excess and CH₄ is fed into a methanol synthesis section where a reaction takes place to produce methanol and the gas stream containing CO, CO₂, H₂ and CH₄ is collected from the methanol synthesis section by blowing. H₂ is extracted from the gas stream collected from the methanol synthesis section to obtain a first gaseous phase primarily consisting of H₂, and a second gaseous phase containing CO, CO₂, H₂ and CH₄ and essentially not containing H₂. The second gaseous phase containing CO, CO₂, H₂ and CH₄ and essentially not containing H₂ is then recuperated for use in the conversion process in the primary conversion section. Nitrogen is first removed from natural gas before feeding the natural gas into the primary conversion section. The invention also relates to apparatus for realising the disclosed method.

EFFECT: obtaining end product with high efficiency at low operational and capital expenses and low power consumption.

8 cl, 1 dwg, 1 ex