Separation of acetylene gases

Claim 1

A PROCESS FOR TREATING A SOLUTION OF AN OXYGEN-CONTAINING ORGANIC SOLVENT CONTAINING DISSOLVED ACETYLENE, SAID SOLVENT HAVING A BOILING POINT ABOVE THAT OF WATER, WHICH COMPRISES INTRODUCING SAID SOLUTION INTO THE FIRST OF A SERIES OF DESORBING STAGES, SAID STAGES BEING MAINTAINED UNDER REDUCED PRESSURE AND EACH STAGE BEING MAINTAINED AT A PRESSURE LOWER THAN THE PRESSURE IN THE PRECEDING STAGE, TRANSFERRING SAID SOLUTION FROM THE FIRST STAGE SUCCESSIVELY TO EACH OF THE SUCCEEDING STAGES OF LOWER PRESSURES WHILE ENTRAINING THE GASES EVOLVED IN EACH OF THE SUCCEEDING STAGES WITH A HIGH VELOCITY STEAM JET AND DISCHARGING THE SAME INTO THE SOLUTION CONTAINED IN THE NEXT PRECEDING STAGE OF HIGHER PRESSURE THEREBY CONDENSING AT LEAST PART OF SAID STEAM THEREIN, WITHDRAWING ACETYLENE FROM THE FIRST STAGE AND WITHDRAWING SAID SOLVENT SUBSTANTIALLY FREE OF ACETYLENE FROM THE STAGE OF LOWEST PRESSURE.