Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1986-04-25
1988-08-02
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204265, 204266, 204DIG4, 429 12, 429122, 123 2, 123 22, 123DIG13, 55 16, 55158, C25B 102
Patent
active
047612096
ABSTRACT:
A method for extracting oxygen from a fluid environment, which comprises the steps of (1) contacting a first fluid environment containing oxygen with a first surface of a first oxygen permeable membrane having a first and a second surface, wherein the membrane separates the environment from an interior space of a closed container, (2) transporting a carrier fluid into contact with the second surface of the membrane, wherein the carrier fluid is confined in the closed container and the carrier fluid contains a binding-state oxygen carrier, whereby oxygen which diffuses through the membrane binds to the carrier to give a bound oxygen complex, (3) transporting the carrier fluid containing the bound oxygen complex to a first electrode compartment of an electrochemical cell which forms a second portion of the closed container, (4) electrochemically modifying the binding-state oxygen carrier to an oxidation state having less binding affinity for oxygen, thereby releasing free oxygen into the carrier fluid and producing a nonbinding-state oxygen carrier, (5) removing oxygen from the carrier fluid, (6) transporting the carrier fluid containing the nonbinding-state oxygen carrier to a second electrode compartment of an electrochemical cell which forms a third portion of the closed container, and (7) electrochemically modifying the nonbinding-state oxygen carrier to the binding-state oxygen carrier, is disclosed along with an apparatus useful for carrying out the method of the invention.
REFERENCES:
patent: 4251452 (1981-02-01), McAuliffe et al.
patent: 4475994 (1984-10-01), Gagne et al.
patent: 4542010 (1985-09-01), Roman et al.
International Application No. PCT/US85/02124; SRI International (Roberts et al.), filed: Oct. 28, 1985 entitled, "Gas Separation Process".
Anderson C. William
Bonaventura Celia
Bonaventura Joseph
Van Ryzin Joseph C.
Zenner Bruce D.
Andrews R. L.
Aquanautics Corporation
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