SRS Engineering Methanol Recovery Column, measures approximately 44" diameter lower section to 18" diameter upper section X 21' high, ASV column purifies biodiesel by removing methanol and water, acting as two flashes with a recycle loop. Feed enters the column directly without going through a stripping section, causing the vapor to travel the length of the column and out the condenser. Complete system including column, structure, pumps, valves, piping, etc. System was is in working condition when removed from biodiesel facility in 2021.