Process for the cryogenic separation of gases from air

Details Process for the cryogenic separation of gases from air Process for the cryogenic separation of gases from air

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/04 (2006.01)

Patent

CA 2292174

In an apparatus for the separation of air by cryogenic distillation, all of the air is compressed to a medium pressure. Next, one part of the air is compressed to an intermediate pressure and a fraction of this air is compressed to a high pressure. The high-pressure air is divided into at least two fractions and expanded in two turboexpanders (7, 3), the cooled stream from the warm turboexpander (7) being at least partially recycled into the warm end of the exchanger (8) at a higher pressure. A liquid coming from the air separation apparatus vaporizes in the exchanger.

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