This is for people (like me) who need a MeOH recovery system due to the high usage.

The system has 4 tanks
A. main Liquid and MeOH Mixture
B. Vacuum Tank
C. Vacuum MeOH recovery Tank
D. Atmosphere pressure MeOH recovery Tank

The contents of tank A is sucked in to Tank B. On entry into Tank B the liquid goes through a spray nozzle. The nozzle helps the methanol to flash off in the vacuum by increasing the liquid surface area. The liquid falls to the base of tank B where it is pumped off. The MeOH vapors are sucked through a series of baffles in the tank after which a condenser turns it to liquid. The liquid is then colleted in Tank C. The suction for tank c and B is generated by a venturi pump that is power from the pump discharge from tank B. The discharge from the venturi pump is then reheated and sent back to tank A or alternatively a heat could be placed in tank A. Any vapors from tank A is condensed and collected in Tank D.

This system would require carful control of the follow rate between Tank A & B so as to maintain the vacuum and that there is liquid at the base of tank B to be pumped. Also a few well placed check vavles wouldn't hurt