Nitrogen removal system

Details Nitrogen removal system Nitrogen removal system

1986-04-04

1988-08-30

Capossera, Ronald C.

Refrigeration

Processes

Circulating external gas

62 34, 62 40, 62 42, 62 44, F25J 302

Patent

active

047674288

ABSTRACT:
A process for separating a nitrogen rich hydrocarbon stream is disclosed. The process includes cooling the stream in a series of indirect heat exchanges to separate successively lighter components from heavier components of the stream. After the first cooling stage, the stream is separated into a heavy component stream and a light component stream. The heavy component is distilled to form a heavy product stream and a first methane rich gas stream. The lighter component stream is successively cooled and split into a second methane rich gas stream and a nitrogen rich, low heating value stream.

REFERENCES:
patent: 3592015 (1971-07-01), Streich et al.
patent: 3596472 (1971-08-01), Streich
patent: 4112700 (1978-09-01), Forg
patent: 4274850 (1981-06-01), Becker
patent: 4411677 (1983-10-01), Pervier et al.
patent: 4456460 (1984-06-01), Apffel

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