METHOD FOR OBTAINING DIMETHYL ETHER Russian patent published in 2016 - IPC C07C43/04 C07C41/09 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to method for obtaining dimethyl ether. Method includes the following stages: a) provision of methanol-containing initial raw material; b) introduction of initial raw material into reaction zone inside gas-cooled reactor for obtaining dimethyl ether and passing of initial raw material through reaction zone; c) introduction of cooling gas flow into cooled space inside gas-cooled reactor for obtaining dimethyl ether; d) reaction of initial raw material in reaction zone in presence of catalyst, active with respect to dehydration of methanol to dimethyl ether, with obtaining reactor-leaving flow, which contains dimethyl ether; e) passing of cooling gas flow through cooled space under conditions of indirect heat exchange with initial raw material in reaction zone, with cooling gas flow being concurrent to direction of initial raw material flow in reaction zone.

EFFECT: realisation of method under suggested conditions makes it possible to reduce or avoid formation of carbon on catalyst.

6 cl, 1 dwg, 1 ex