Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1988-04-26
1989-05-30
Nozick, Bernard
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
55 73, 55 89, 55 96, 261DIG46, 261 17, 261DIG11, 261DIG9, 261 21, 252180, C01B 1700
Patent
active
048349550
ABSTRACT:
An inhibitor formulation for inhibiting corrosion and deposition of calcium phosphate, calcium carbonate, and silt in a cooling water system and calcium sulphate (gypsum) scaling in a flue gas desulfurization system. The inhibitor formulation comprises polyacrylate, polymaleic anhydride, and phosphonate in a active weight ratio range between about 1 to 40:1 to 40:0.1 to 15, respectively. The inhibitor formulation is employed to inhibit corrosion and scaling in a combined cooling water/flue gas desulfurization process wherein at least a portion of cooling water blowdown is supplied to make up at least a portion of reagent makeup and/or mist eliminator wash water in the flue gas desulfurization system.
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Ekis, Jr. E. W.
Lin M. L.
Mouche R. J.
Nalco Chemical Company
Nozick Bernard
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