Absorption of 99% is expected where the liquid outlet is heated to 102oC. The distillation column receives the liquid then separates the overhead methanol stream (68.3 oC, 1.2 atm) then recycles it back to methanol fresh feed mixing point. The bottom formaldehyde stream is pumped and mixed with deionized water forming (37 wt. % formaldehyde) formalin stream which sent for storage. The mixing is presented as follows: