Dephlegmator process for the recovery of helium

Details Dephlegmator process for the recovery of helium Dephlegmator process for the recovery of helium

F - Mech Eng,Light,Heat,Weapons

25

J

162/103

F25J 3/06 (2006.01) F25J 3/02 (2006.01)

Patent

CA 2034578

ABSTRACT A crude helium product is produced from a natural gas stream containing helium by rectification of the feed gas in a dephlegmator heat exchanger. The process is fully auto-refrigerated, and is capable of achieving a helium recovery of 99% without the use of a recycle compressor or a heat pump compressor. A nitrogen product stream can be concurrently produced by addition of a second rectification circuit in the dephlegmator heat exchanger.

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