Method and apparatus for cryogenic separation of carbon dioxide

Details Method and apparatus for cryogenic separation of carbon dioxide Method and apparatus for cryogenic separation of carbon dioxide

1988-08-19

1990-05-08

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 20, 62 24, 62 28, 62 31, F25J 500

Patent

active

049234935

ABSTRACT:
A method for conditioning the freezing zone liquid feedstream in the cryogenic separation of carbon dioxide and other acid gases from methane by use of distillation and a controlled freezing zone, including the step of sub-cooling the freezing zone liquid feedstream, so that this freezing zone liquid feedstream remains close to, but not quite at, carbon dioxide solidification conditions.

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patent: 4698081 (1987-10-01), Aghili
Article entitled "Integrated Low Temperature Processing of Sour Natural Gas", by Robert D. Denton and D. D. Rule, Proceedings of the Sixty-Fourth Annual Convention, Mar. 18-20, 1985, pp. 92-96.
Article entitled "Development and Application of the Controlled Freeze Zone Process", by R. C. Haut, R. D. Denton, E. R. Thomas, 7th Offshore South East Asia Conference, Singapore, Feb. 2-5, 1988, Paper No. OSEA .sctn..sctn.197.
Article entitled "The CFZ Process: Direct Methane-Carbon Dioxide Fractionation", by Donald J. Victory and Jaime A. Valencia, 66th Annual GPA Convention, Denver, Colorado, Mar. 16-18, 1987.

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