Process and apparatus for air fractionation by rectification

Details Process and apparatus for air fractionation by rectification Process and apparatus for air fractionation by rectification

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/04 (2006.01)

Patent

CA 2075737

"PROCESS AND APPARATUS FOR AIR FRACTIONATION BY RECTIFICATION" ABSTRACT OF THE DISCLOSURE For air fractionation by two-stage rectification with subsequent production of crude argon, a component stream of the crude argon stream (25, 31) withdrawn from the crude argon column (2) is condensed (35) in indirect heat exchange (34) with a liquid oxygen product stream (40) from the medium pressure column (4), the oxygen pro- duct stream (40) being partially vaporized. The con- densed crude argon (35) is then recycled into the crude argon column (20). A second component stream of the crude argon is obtained as the product (24).

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