METHOD OF PRODUCING DIMETHYL ETHER Russian patent published in 2014 - IPC C07C43/04 C07C41/01 

FIELD: chemistry.

SUBSTANCE: method includes catalytic conversion of synthesis gas in a dimethyl ether synthesis reactor to obtain a mixture of products containing dimethyl ether, methanol, carbon dioxide and unreacted synthesis gas, followed by separation thereof and obtaining the end product by condensation from the gaseous phase. The synthesis gas subjected to catalytic conversion is obtained from steam gasification of charcoal which is formed from pyrolysis of pre-dried wood wastes, and after separating the mixture of products, the liquid phase is fed into a fractionation column to separate methanol, after which methanol and carbon dioxide-free unreacted synthesis gas of the gaseous phase is fed into the dimethyl ether synthesis reactor.

EFFECT: method increases output of the end product.

1 dwg