(13a) pH Myths: Simple to Measure...Easy to Control

From the ethylene quench system to the high pressure boilers, accurate pH measurement is important for proper control of process water chemistry to ensure asset protection and reliability. Measuring pH in oily quench water or high purity water can be misleading if not done under the proper conditions leading to potential corrosion issues, fouling, chemical overfeed and other process impacts. This presentation will review the basics of measuring pH, explain how temperature impacts the real pH, and cover how to avoid common mistakes in pH measurement.