Invention Grant
- Patent Title: Composition for operation of evaporative cooling towers with minimal or no blowdown
- Patent Title (中): 具有最小或无排污的蒸发式冷却塔的组合
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Application No.: US12584762Application Date: 2009-09-11
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Publication No.: US08128841B2Publication Date: 2012-03-06
- Inventor: Timothy E. Keister
- Applicant: Timothy E. Keister
- Applicant Address: US PA Brockway
- Assignee: Prochemtech International, Inc.
- Current Assignee: Prochemtech International, Inc.
- Current Assignee Address: US PA Brockway
- Agency: Kilyk & Bowersox, P.L.L.C.
- Main IPC: C09K15/16
- IPC: C09K15/16 ; C09K15/02 ; C09K15/32 ; C02F1/00 ; C02F1/68

Abstract:
A method and composition are provided for the operation of an evaporative cooling tower with minimal, or no, blowdown. In some embodiments, the method involves using sodium cation-exchanged softened water as makeup water for the cooling tower, providing a bypass filter for suspended solids removal from the cooling water, treating the cooling water with a composition for control of corrosion and deposition, and using an effective biocide for control of biological growth within the cooling tower system. In some embodiments, a composition is provided that comprises AMPS acrylic terpolymer, sodium silicate, phosphate ions, and polyphosphate ions. When dosed at the recommended levels, the composition controls corrosion of cooling system materials to generally acceptable levels in spite of the extremely corrosive environment resulting from the cycling of sodium cation-exchanged softened water in the cooling tower.
Public/Granted literature
- US20100006800A1 Composition for operation of evaporative cooling towers with minimal or no blowdown Public/Granted day:2010-01-14
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