METHOD OF REGENERATING AQUEOUS SOLUTION OF METHANOL Russian patent published in 2019 - IPC B01D53/96 

FIELD: technological processes.

SUBSTANCE: invention relates to processes of regenerating aqueous solutions of methanol (ASM) to obtain ASM with content of methanol of more than 80 wt% and can be used in oil and gas industry. Method of ASM regeneration consists in that ASM is subjected to initial heating and supplied to rectification column, where gas which is chemically inert with respect to methanol and water is fed above or below said plate. Part of still liquor is removed from rectification column and heated to form steam flow fed to rectification column. Unboiled portion of still liquid flow is used for initial heating ASM. Steam-gas mixture withdrawn from the rectification column is cooled and directed to the first separator, the liquid flow from which is supplied to the rectification column. Steam-gas mixture withdrawn from the first separator is compressed, cooled and supplied to the second separator, from which fluid flow is removed, which is regenerated ASM.

EFFECT: invention provides improved quality of regeneration ASM and regeneration efficiency improvement ASM.

8 cl, 1 dwg