METHANOL REGENERATION UNIT Russian patent published in 2020 - IPC B01D3/14 

FIELD: technological processes.

SUBSTANCE: invention relates to processes of regenerating methanol from aqueous solutions and can be used in oil and gas industry when preparing hydrocarbon gases for transportation and processing. Methanol regeneration unit includes serially installed heat exchangers-recuperators, rectification column, air cooling device, reflux accumulator, tubular reboiler of the column, as well as evaporator 1 made in the form of a reservoir partially filled with working fluid 2. In lower part of evaporator there are fire tubes 3 equipped with burners 4 and stack 5. Upper part of evaporator 1 is connected to upper part of reboiler 6 via steam pipeline 7. Lower part of evaporator 1 is connected to lower part of reboiler 6 via condensate pipeline 8. On the steam pipeline there is shutoff-control valve 9. Reboiler, evaporator and steam and condensate pipelines form convective thermal loop. Absolute operating pressure of the evaporator is ensured by less than 150 kPa (not a device operating under excessive pressure).

EFFECT: longer service life of the evaporator, improved quality of controlling the heating of the bottom of the column.

1 cl, 1 dwg