Refrigeration – Processes – Circulating external gas
Patent
1989-12-21
1990-06-26
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 24, 62 27, 62 31, 62 43, F25J 302
Patent
active
049368885
ABSTRACT:
An improved apparatus and process are disclosed for nitrogen rejection from a gaseous hydrocarbon stream recovered from an enhanced oil recovery project employing nitrogen for miscible flood of oil reservoirs. The process utilizes a modified dual distillation column arrangement including two fractionators which do not utilize overhead reflux condensers or reboilers for separating a nitrogen-methane mixture. Further, process conditions can be adjusted so as to provide efficient nitrogen rejection from a feedstream in which nitrogen content varies widely over a comparatively long period of time during enhanced recovery of oil.
REFERENCES:
patent: 3293869 (1966-12-01), Karbosky et al.
patent: 3559417 (1971-02-01), Hoffman
patent: 4225329 (1980-09-01), Bailey et al.
patent: 4322225 (1982-03-01), Bellinger et al.
patent: 4331461 (1982-05-01), Karbosky et al.
patent: 4352685 (1982-10-01), Swallow
patent: 4451275 (1984-05-01), Vines et al.
patent: 4455158 (1984-06-01), Vines et al.
patent: 4456461 (1984-06-01), Perez
patent: 4592767 (1986-06-01), Pahade et al.
patent: 4664686 (1987-05-01), Pahade et al.
patent: 4666483 (1987-05-01), Gauthier
patent: 4711651 (1987-12-01), Sharma et al.
patent: 4746342 (1988-05-01), DeLong et al.
patent: 4767428 (1988-08-01), Apffel
Looney, S. K., et al., Technology, Oil and Gas Journal, 12-17-84, pp. 103-108.
Bogatie George E.
Capossela Ronald C.
Phillips Petroleum Company
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