Absorption process for producing oxygen and nitrogen and solutio

Gas separation – Means within gas stream for conducting concentrate to collector

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55 43, 55 53, 55 68, 25218828, 2521817, 2521816, B01D 1900

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active

RE0333522

ABSTRACT:
Process for the separation and purification of oxygen and nitrogen is disclosed which utilizes solutions of oxygen carriers to selectively absorb oxygen from a gaseous stream, leaving nitrogen as a byproduct. In the process, an oxygen carrier capable of reversibly binding molecular oxygen is dissolved in a solvent solution, which absorbs oxygen from an oxygen-containing gaseous feed stream such as atmospheric air and desorbs oxygen to a gaseous product stream. The feed stream is maintained at a sufficiently high oxygen pressure to keep the oxygen carrier in its oxygenated form during absorption, while the product stream is maintained at a sufficiently low oxygen pressure to keep the carrier in its deoxygenated form during desorption. In an alternate mode of operation, the carrier solution is maintained at a sufficiently low temperature and high oxygen pressure to keep the oxygen carrier in its oxygenated form during absorption, and at a sufficiently high temperature to keep the carrier in its deoxygenated form during desorption. Under such conditions, exceptionally high oxygen concentrations on the order of 95% to 99% are obtained, as well as a long carrier lifetime in excess of 3 months, making the process commercially feasible.

REFERENCES:
patent: 1056244 (1913-03-01), Wiley
patent: 1722458 (1929-07-01), De Baufre
patent: 2144692 (1939-01-01), Schuftan
patent: 3396510 (1968-01-01), Ward et al.
patent: 3728281 (1973-04-01), Marks et al.
patent: 3738086 (1973-06-01), Bellisio et al.
patent: 3762133 (1973-10-01), Merriman et al.
patent: 3824766 (1974-07-01), Valentine et al.
patent: 4032617 (1977-06-01), Gay
patent: 4106916 (1978-08-01), Tuckett et al.
patent: 4312731 (1982-03-01), Roberts
Stevens et al.-Journal of the American Chem. Society, 3 pages, dated 4/23/80.
Jones et al.-Chem. Reviews vol. 79, No. 2, 1979, pp. 139-179.
Hoffman et al.-Dept. of Chemistry, 6/19/69, 5 pages.
Collman 70 Accounts of Chem. Research 266 (1977) pp. 265-272.
Khare et al.-54 Canadian Journal of Chemistry 3424 (1976) pp. 3424-3429.
Wilmarth et al.-68 Journal of the American Chem. Society 2263 (1946) 4 pages.
Bassett et al., 211 Biochem. Biophys. Acta 194 (1970).
"Oxygen Enrichment," Bend Research, Inc. Technical Brief (1981).
Herron et al., 103 JACS 1286 (1980).
"Membranes Separate Gas" Chem. Engr., Jul. 1981.
Parrett, "Membranes--Succeeding by Separating" (1982).
Scholander, "Oxygen Transport through Hemoglobin Solutions" 231 Science 5B5 (1960).

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