Home › Forums › Sulfur › Sulfur Equipment, Operations & Process › Chemical cleaning of Waste Heat Boilers › RE: Chemical cleaning of Waste Heat Boilers
October 19, 2011 at 5:49 pm #4876
We suggest cleaning with a solution of surfactant, flake caustic, and sodium nitrate before startup. This is done by firing natural gas in the Thermal Reactor and “boiling out” the WHB and sulfur condenser for 24 hours to remove scale, oils, corrosion, etc. The interior of those units can look pretty nasty and they need to have clean tubes.