Refrigeration – Processes – Circulating external gas
Patent
1989-11-02
1990-06-26
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
55 74, 62 18, F25J 302
Patent
active
049368877
ABSTRACT:
A membrane separation is incorporated in a distillation cycle for efficient recovery of carbon dioxide from a stream containing natural gas along with carbon dioxide. Methane and carbon dioxide are separated from a feed stream in a first distillation to produce a process stream containing essentially methane and carbon dioxide and which is substantially free to ethane and higher molecular weight hydrocarbons. The process stream consisting essentially of methane and carbon dioxide is subjected to further distillation to produce a carbon dioxide-rich product stream and a process stream enriched in methane. The methane-enriched process stream is then passed to a membrane separation unit for separating methane and carbon dioxide and for producing a high purity methane product stream.
REFERENCES:
patent: 3595782 (1971-07-01), Bucklin et al.
patent: 4130403 (1978-12-01), Cooley et al.
patent: 4318723 (1982-03-01), Holmes et al.
patent: 4350511 (1982-09-01), Holmes et al.
patent: 4370156 (1983-01-01), Goddin, Jr. et al.
patent: 4374657 (1983-02-01), Schendel et al.
patent: 4466946 (1984-08-01), Goddin, Jr. et al.
patent: 4526594 (1985-07-01), Mehra
patent: 4589896 (1986-05-01), Chen et al.
patent: 4595405 (1986-06-01), Agrawal et al.
patent: 4654047 (1987-03-01), Hopkins et al.
patent: 4654063 (1987-03-01), Auvil et al.
patent: 4717407 (1988-01-01), Choe et al.
patent: 4732583 (1988-03-01), DeLong et al.
patent: 4817392 (1989-04-01), Agrawal
Burkinshaw Jeffrey R.
Waldo Richard A.
Bogatie George E.
Capossela Ronald C.
Phillips Petroleum Company
LandOfFree
Distillation plus membrane processing of gas streams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Distillation plus membrane processing of gas streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distillation plus membrane processing of gas streams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1123443