F - Mech Eng,Light,Heat,Weapons – 25 – J
Patent
F - Mech Eng,Light,Heat,Weapons
25
J
162/104
F25J 3/02 (2006.01)
Patent
CA 1285208
ABSTRACT OF THE DISCLOSURE PROCESS FOR THE RECOVERY OF ARGON There is disclosed an improved process for recover- ing argon from a tail gas stream, preferably a tail gas obtained from a hydrogen recovery unit processing a purge gas obtained in the synthesis of ammonia and comprised of argon, methane, nitrogen, and residual quantities of hydrogen, wherein the tail gas is partially liquefied prior to introduction into a first fractionation column to form a bottoms liquid stream comprised of argon and meth- ane wherein such liquid stream is thereupon introduced into a second fractionation column to separate argon as an overhead gaseous stream which is condensed to form liquid argon or as product.
560819
Hwang Wei S.
Kamrath David J.
Mishkovsky Vladimir
Gowling Lafleur Henderson Llp
The Boc Group Inc.
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