The introduced water vapor is aggregated by cooling by adiabatic expansion, and beam-shaped H2O clusters are formed.

The cooling gas may be drawn from a preexisting high pressure gas system that serves a purpose other than supplying a coolant for the gas expansion cooling system.

Direct heating by steam injection or infusion of milk into steam and cooling by expansion under vacuum.

The invention relates to a processing scheme for gas conditioning, comprising an expansion-coolingbased separation stage (200) and a stabilisation stage (300).

The expansion-coolingbased separation stage (200) comprises an expander (EXP), a separator (SEP) and a compressor (COM), and is arranged to receive an input stream (I2).

The stabilisation stage (300) comprises a fractionation column (FC), and is arranged to receive an intermediate input stream (I3) from the expansion-coolingbased separation stage (200).