Fenco Engineering Testimonial
Alonized™ Diffusion-coated So2 / So3 Heat Exchanger Tubes Operating Efficiently Since 1966
In 1966, Fenco Engineering Company built a sulfuric acid plant for SO2 abatement purposes using
Alonized™ tubes for a non-ferrous mining company with a smelter operation in Ontario. In 1988(22 years later) this customer asked Fenco to conduct a study to see if the plant could last another five years, after which time it would be replaced with a more modern, larger facility which would handle all of the off-gas streams in the property.
A comprehensive survey was conducted and found that the Alonized™ tubes in the heat exchanger, in service for 22 years, were essentially in “day one” condition. Fenco assured the plant operator that there should be no difficulty in achieving another five years of operation.
Ultimately, conditions elsewhere in the facility dictated the earlier replacement of this plant, and the new larger unit was put in service in the early 1990s.
Alonized™ tubes are now in service in 38 countries throughout the world. To Endurance’s knowledge, there has not been a single failure in the over 1000 miles of tubing now in service occasioned by improper Alonizing™ or a failure of the Alonized™ diffusion zone to properly perform its task of protecting the tube against sulfur-based scaling and corrosion.