Process and apparatus for controlling argon column feedstreams

Details Process and apparatus for controlling argon column feedstreams Process and apparatus for controlling argon column feedstreams

F - Mech Eng,Light,Heat,Weapons

25

J

162/104

F25J 3/00 (2006.01) F25J 3/04 (2006.01)

Patent

CA 1283354

ABSTRACT The present invention relates to methods and apparatus for controlling a process for the separation of air to obtain oxygen, argon, and nitrogen products, and more particularly for controlling the composition of the feedstream to a column for producing crude argon. The nitrogen content of the feedstream is directly analyzed in real time and maintained within a preselected range. The results of the analysis is used to control the operation of the process, for example, by adjusting the reflux or product withdrawal rates. Argon production is thereby maximized without risking a dumping phenomenon in the crude argon column.

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