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Cooling Water Corrosion

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Cooling Water (CW) Corrosion and fouling are closely related and should be considered together. Critical factors in controlling both include: process and CW temperatures, heat flus, water velocity, type and quality of water (salt, brackish, fresh), and type of cooling system. When managing heat exchanger bundles, cooling water corrosion control is simply a matter of proper design, continuous maintenance of high quality water treatment, and proper operating practices. Corrosion in CW exchangers can manifest itself as general thinning, pitting, stress corrosion cracking, and microbiologically induced corrosion (MIC). Metallurgical upgrades may be necessary in some circumstances, especially where fluid velocities cannot be adequately controlled, process or CW temperatures are too high, or water chemistry is not good.

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Articles about Cooling Water Corrosion
July/August 2019 Inspectioneering Journal

Gasification technology has emerged in oil and gas due to the high combustion energy of Syngas and less environmental concerns than flue gas. This article discusses proper inspection and corrosion monitoring techniques for gasification units.

January/February 2018 Inspectioneering Journal

Sea water corrosion and erosion issues can affect almost all commonly used metallurgy in a refinery or petrochemical plant. This brief article explains the dangers behind sea water used in plant cooling systems and discusses several metallurgical...

Authors: Ashfaq Anwer
May/June 2005 Inspectioneering Journal

Cooling water (CW) corrosion may be the oldest form of corrosion in the petrochemical industry, yet the industry still struggles with it for two primary reasons.

Authors: John Reynolds
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