Cryogenic air separation process with excess turbine...

Details Cryogenic air separation process with excess turbine... Cryogenic air separation process with excess turbine...

2008-11-17

2010-02-23

Doerrler, William C (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

C062S650000, C062S654000

Reexamination Certificate

active

07665329

ABSTRACT:
A process for carrying out cryogenic air separation wherein liquid oxygen is pressurized and vaporized against condensing feed air to produce oxygen gas product wherein excess plant refrigeration is generated such that the aggregate warm end temperature difference of the process exceeds the minimum internal temperature difference of the primary heat exchanger by at least 2K.

REFERENCES:
patent: 3236059 (1966-02-01), Bernstein
patent: 5463870 (1995-11-01), Rieth
patent: 5515687 (1996-05-01), Arriulou
patent: 5515688 (1996-05-01), Rieth
patent: 5765397 (1998-06-01), Honda et al.
patent: 5901576 (1999-05-01), Agrawal et al.
patent: 6430962 (2002-08-01), Miura et al.

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