Dephlegmator process for nitrogen removal from natural gas

Details Dephlegmator process for nitrogen removal from natural gas Dephlegmator process for nitrogen removal from natural gas

1997-10-16

1998-09-08

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62927, F25J 100

Patent

active

058028714

ABSTRACT:
Nitrogen is removed from a pressurized feed gas mixture containing nitrogen and methane by cooling, partial condensation, and rectification in one or more dephlegmators. Autorefrigeration is provided by pressure letdown of selected process streams and external refrigeration is not required.

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