August 2020

Water Management

Chemical treatment program for closed-loop cooling system

Closed-loop cooling water (CLCW) systems are utilized in areas where cooling is critical.

Closed-loop cooling water (CLCW) systems are utilized in areas where cooling is critical. In such areas, a high level of chemical treatment is required to maintain good corrosion and scale control. This article discusses various treatment methods and the frequently encountered chemistry problems of such systems, as experienced at the Tüpraş İzmit refinery. CLCW systems are frequently used in the cooling of reciprocating compressors, which handle light hydrocarbons or hydrogen—specifically, the jackets where the tube metal temperature (TMT) exceeds 100°C. High TMT eliminates open-loop (evaporative) cooling water as a cooling medium due to its high scale-forming potential. A series of CLCW s

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