Selected methods of reflux-hydrocarbon gas separation process

Details Selected methods of reflux-hydrocarbon gas separation process Selected methods of reflux-hydrocarbon gas separation process

1985-04-12

1986-06-24

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 28, 62 30, 62 39, F25J 302

Patent

active

045965889

ABSTRACT:
A process for the separation of components of a normally vapor stream containing methane and heavier components by a cryogenic process. This process consisting of cooling the inlet stream, separating the remaining vapor from the resulting liquid which is directed into a distillation column. The vapor is expanded and produced liquids are fed into the distillation column. The expanded vapor stream is contacted with a reflux obtained from a specific source resulting in a secondary reflux which is directed to the top of the distillation column. The origin of the reflux stream is determined by the specific application requirements.

REFERENCES:
patent: 3675434 (1972-07-01), Crawford et al.
patent: 4203741 (1980-05-01), Bellinger et al.

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