Left unchecked, dewpoint corrosion can cause significant damage to heat exchanger tubes, tubesheets and structures. When dewpoint corrosion is identified at an early stage, a thermal-lined barrier can stop further damage and lengthen the life of the heat exchanger.

Multi-cyclone dust collectors (MDCs) have been used in conjunction with air preheaters and boilers in energy production and other industries since the 1950s. Over time, they have evolved in design and purpose, yet their function remains important in many process heating applications.

Historically, air preheater repair decisions were based on the boiler approaching operational limitations and inspection results. 

What is critical to operators of thermal plants? Of primary importance is the delivery of process steam and electric power within the established environmental limits for the site.