Process for recovering light boilers and reboilers from vapor stream

The invention relates to a process for recovering light boilers and reboilers from a vapor stream wherein the process comprises the steps of A1) introducing a vapor stream (1) comprising light boilers and reboilers into a column (2) at a point at the bottom of the column (2), A2) discharging a light boilers-enriched vapor stream (3) from the top of the column (2), A3) discharging a reboilers-enriched liquid stream (4) from the bottom of the column (2), a4) recirculating the stream (5) back into the column (2) at a point above the column (2), where the stream (5) remains substantially adiabatic during the recirculation, A5) discharging a stream (7) enriched with a concentrated boil-off substance from an intermediate portion of the column (2) and dividing the stream (7) into a partial stream (8) and a partial stream (9), and A6) separating the partial stream (5) and the partial stream (6) from the partial stream (8) and the partial stream (9), where the partial stream (5) remains substantially adiabatic during