Configuration and process for NGL recovery using a subcooled...

Details Configuration and process for NGL recovery using a subcooled... Configuration and process for NGL recovery using a subcooled...

2008-05-27

2008-05-27

Tyler, Cheryl (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

C062S635000, C062S621000

Reexamination Certificate

active

07377127

ABSTRACT:
An NGL recovery plant includes a demethanizer (7) in which internally generated and subcooled lean oil absorbs CO2and C2from a gas stream (11), thereby preventing build-up and freezing problems associated with CO2, especially where the feed gas has a CO2treatment at ethane recoveries above 90% and propane recoveries of at least 99%.

REFERENCES:
patent: 4061481 (1977-12-01), Campbell et al.
patent: 6182469 (2001-02-01), Campbell et al.
patent: 6915662 (2005-07-01), Wilkinson et al.

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