DC-83-06-3 -- The Effect of Moderate Temperature Effluents on Selected Materials Used in Air-to-Air Energy Recovery Equipment--Industrial-Pulp and Paper and Painting

The effect of exhausts on various metals in different environments, namely pulp and paper (TMP steam and paper drier exhaust) and metal painting (acrylic base, latex base, and drying ovens), was studied. Exhaust samples from some environments were collected and analyzed by chemical procedures to determine the cause of corrosion and fouling and to help in identifying condensable gases in each effluent. Visual examinations of the metal samples were used in establishing the extent of corrosion and fouling. The composition of corrosion products was determined by x-ray analysis after different exposure periods. It was observed that in some cases the reactive nature of the exhaust caused the fouling / corrosion rate to increase with the exposure period.