METHANOL PRODUCTION PROCESS Russian patent published in 2006 - IPC C07C29/151 C07C31/04 B01J8/06 

FIELD: industrial organic synthesis.

SUBSTANCE: invention relates to improved process of producing methanol from synthesis gas and can be used at methanol production plants. Process comprises mixing synthesis gas with circulation gas, heating obtained gas mixture to starting synthesis temperature, passing heated gas mixture through additionally installed preliminary adiabatic reactor, wherein partial methanol synthesis takes place and temperature rises. Stream is then passes additionally installed recuperating heat exchanger, wherein resulting reaction mixture is cooled to starting reaction temperature in first catalyst bed of the principal methanol synthesis reactor comprising several adiabatic catalyst bed. Reacted gas is cooled to isolate condensed crude methanol, while non-condensed gas stream is divided into two streams: return stream and purging stream. Return while non-condensed gas stream is compressed in circulation compressor and then is sent to be mixed with synthesis gas. Volume ratio of preliminary adiabatic reactor bed to the first bed of principal reactor lies within a range of 35 to 150%.

EFFECT: increased yield of methanol and reduced power consumption.

2 cl, 1 dwg, 1 tbl, 7 ex