Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal
Patent
1984-12-05
1986-03-04
Therkorn, Ernest G.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Maintaining environment nondestructive to metal
210696, 210750, 210757, 25218828, 422 9, 423580, C23F 1108
Patent
active
045740712
ABSTRACT:
A process for removing dissolved oxygen from an aqueous medium, using hydrazine to react with the oxygen, where the aqueous medium is contacted with a catalyst bed of palladium or platinum metal dispersed on a solid carrier, at ambient temperatures. The catalyst bed effects reaction of the hydrazine with the dissolved oxygen to provide residual oxygen contents of below 10 ppb. Preferably, the hydrazine is intimately mixed with the aqueous medium prior to contact with the catalyst bed. The process is especially useful in removing dissolved oxygen from recirculating aqueous medium of a steam generation system, where the hydrazine-containing aqueous medium is contact with the catalyst bed after passage through the condenser pump but prior to the feedwater heaters.
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Martinola, "Saving Energy by Catalytic Reduction of Oxygen in Feedwater", F. Martinola, International Water Conference, Pittsburgh, Pa., Oct. 20, 21, 22, 1980.
Desilva Sunil G.
Hearp Charles W.
Abeles Daniel C.
Therkorn Ernest G.
Westinghouse Electric Corp.
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