Liquid nitrogen by-product production in an NGL plant

Details Liquid nitrogen by-product production in an NGL plant Liquid nitrogen by-product production in an NGL plant

1989-08-03

1990-08-14

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 39, F25J 306

Patent

active

049484044

ABSTRACT:
An improved method of recovering liquid nitrogen as a by-product in a natural gas liquid (NGL) recovery plant is provided. In accordance with the method a plant-separated, nitrogen-rich gas stream is compressed to a super-atmospheric pressure, and the stream is chilled whereby a portion of the nitrogen and other components therein are condensed by passing the stream in an indirect heat exchange relationship with a methane refrigerant stream. The methane refrigerant stream is a portion of the plant methane-rich product gas stream which is expanded, utilized as the refrigerant stream and then recycled to and combined with the plant feed stream.

REFERENCES:
patent: 3205669 (1965-09-01), Grossman
patent: 3596472 (1971-08-01), Streich
patent: 4072023 (1978-02-01), Springmann
patent: 4115086 (1978-09-01), Jordan et al.
patent: 4356014 (1982-10-01), Higgins
patent: 4411677 (1983-10-01), Pervier et al.
patent: 4435198 (1984-03-01), Gray
patent: 4619679 (1986-10-01), DeLong
patent: 4714487 (1987-12-01), Rowles
patent: 4732598 (1988-03-01), Rowles
patent: 4746342 (1988-05-01), DeLong et al.

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