By Randy Turner, Swan Analytical Instruments
FAC is a corrosion mechanism that increases operating and maintenance costs, impacts unit reliability, and most importantly can be a safety concern. Cycle chemistry must be customized for each unit to address its unique design and operating issues. This requires representative sampling, accurate and reliable continuous monitoring, and meticulous control of the chemistry to minimize and hopefully mitigate FAC. Many factors in today’s environment impact unit operations and chemistry control.