| abstract |
A process of compressed nitrogen, air or oxygen liquefaction against the flow of refrigeration with expansion of the compressed gas in the expansion turbine (9) while performing external work, the principle of which is the use of energy of the compressed liquefied gas in the injector (11) for reduction of pressure at the outlet from the expansion turbine. The apparatus includes a compressor (1), heat exchangers (5),(6),(7) and (8), the expansion turbine (9), separator (10), piping, armature and injector (11) connected between the liquefier (8) and separator (10) so that the suction neck of the injector (11) is connected by a pipe (21) to the outlet of the expansion turbine (9).<IMAGE> |