Corrosion Protection

Cooling water circuits are equipped with condensers, heat exchangers, valves, pumps and other equipment made from a variety of metals and/or alloys including copper, stainless steel, mild steel, and titanium.  Corrosion can be the source of significant damage to system components, including condenser tube leaks which can cause damage to boilers and steam turbines.  The adverse effects can result in high maintenance costs, lower plant availability, reductions in the useful life of the plant and its components, and poor financial performance. Protection of metals against corrosion is an ongoing challenge that Mexel® 432/0 is particularly well-suited to meet.  

CCorrosion Picturehemically, Mexel® 432/0 is a non-oxidizing filming   amine with anti-corrosion properties for all metals.  The nature of the emulsion allows it to act in two ways to prevent and control corrosion.  First, Mexel® 432/0 disperses any biological film that promotes corrosion caused by bacteria. Second, the product creates a surface film that provides a barrier between the metal and water. This corrosion protection has been observed in numerous field applications.  In addition, corrosion inhibition has been demonstrated through laboratory tests conducted on different metals and alloys.

Mexel has been successfully applied to control pitting and other negative effects of corrosion in settings ranging from power plants on fresh water to offshore oil platforms.  Some examples of measured reductions include:

–           A cooling tower with 304-L steel – 0.1 mm/yr.; also lower iron in effluent

–           Condenser with brass tubes – decrease in potential by 40 to 50mV during injections

–           A cooling tower/condenser with copper – 0.32 mil/yr. versus the previous  5 mil/yr.

For more information on Mexel’s ability to prevent corrosion, click here!