What is the Basis for Choice between Neutralizing and Filming Inhibitors?
The proper choice of ingibitor depends on the boiler system, plant lay-out operating conditions and fee-water composition. In general, colatile amines are better with low make-up, low feed-water alkalinity, and good oxygen control. Filming inhibitors usually give more economical protection with high make-up, air in-leakage high feed-water alkalinity or where the system is operated interminently. In some cases a combination of treatments is needed.
