Plural stage distillation of a natural gas stream

Details Plural stage distillation of a natural gas stream Plural stage distillation of a natural gas stream

1975-01-02

1976-10-05

Lutter, Frank W.

Refrigeration

Processes

Circulating external gas

62 30, 62 31, 62 39, F25J 302

Patent

active

039837114

ABSTRACT:
Natural gas, containing carbon dioxide and nitrogen, is demethanized in a first fractional distillation tower to provide an overhead of nitrogen and methane free of carbon dioxide and components heavier than methane. A sidestream is withdrawn from the first tower at a point therein where carbon dioxide concentration is maximized and the sidestream is fractionated in a second tower to recover methane and carbon dioxide as overhead. Nitrogen is rejected from the carbon dioxide free overhead from the first tower by liquefaction of methane to provide a send-out gas free of nitrogen. The cold potential of various streams is used to provide cooling requirements for the process.

REFERENCES:
patent: 2826266 (1958-03-01), Hachmuth et al.
patent: 3130026 (1964-04-01), Becker

Affiliated with

Also associated with

Rating

Plural stage distillation of a natural gas stream does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plural stage distillation of a natural gas stream, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plural stage distillation of a natural gas stream will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-648352