Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal
Patent
1994-07-29
1996-03-19
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Maintaining environment nondestructive to metal
210668, 210750, 210757, 422 13, C23F 1106, C02F 170
Patent
active
055001858
ABSTRACT:
A method for deoxygenating water is provided comprising the steps of (1) adding an oxygen scavenger such as hydrazine, carbohydrazide, diethylhydroxylamine or morpholine to water containing oxygen, contacting the water and the oxygen scavenger with hydroxide, carbonate or carbonate/bicarbonate form strong base anion resin wherein the water within the bed has a pH greater than about 7; and (2) contacting the water containing the oxygen scavenger with the strong base anion resin for at least about one minute and removing from the bed water containing less than about 100 ppb oxygen. The method is especially useful in deoxygenating boiler feedwater and makeup water at substantially ambient temperatures during boiler start-up procedures.
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Covey Joseph
Cutler Frances M.
Anderson Denton L.
Carpenter Robert
Southern California Edison
Warden Robert J.
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