Energy efficiently, it is low price, portable possibility and oxygen extraction from the home active ambient air

摘要

A method for directly condensing and separating oxygen from air, the method comprising: (a) cooling (50) a surface (52) within a confinement vessel (54) to a temperature greater than the boiling point temperature of nitrogen and not greater than the boiling point temperature of oxygen; (b) impelling (58) gas from the atmosphere into the vessel, against the surface and out (64) of the vessel, the impelled gas being at a pressure less than 1 bar above ambient atmospheric pressure; (c) collecting (62) condensed oxygen droplets (O 2 ) that fall from the cooled surface and separating the oxygen from gases (N 2 ) in the vessel; (d) cooling incoming air (56) and condensing water (68) in the incoming air by effecting a transfer of heat (66) from incoming air to uncondensed gases (62,64) flowing outwardly from the vessel; and (e) cooling the incoming air by transferring heat (72) from the incoming air to the condensed water (68) before transferring heat (66) to gases flowing outwardly from the vessel.