SHUTDOWNS & TURNAROUNDS
Reduce fouling and eliminate corrosion in the lead up to planned shutdowns and turnarounds.
Deposits easily removed by hand in the preheating section of a Hydrogen Reformer after pre-shutdown cleaning programme by Therma-Chem.
Eliminate slagging and improve
FS12 removes slagging from the tube walls and converts it to dry, friable powder. This results in increased heat transfer and restored capacity.
Prevent high temperature corrosion
Limit fouling and maintain flue gas velocity
Improve performance and reduce maintenance
Prevent dew point corrosion from sulphuric acid
Improve particulate removal and reduce cleaning time
Reduce NOx, SOx and
INDUCED DRAFT FAN
Improve performance and
Therma-Chem’s FS12 is an mildly alkaline solution containing nitrates that is designed specifically to clean boilers online. Using Therma-Chem’s proprietary injection system, the liquid is injected directly into the furnace, vaporises and is carried by the flue gas through the unit, encountering all heat transfer surfaces including the waterwalls, superheaters, economiser, and air pre-heater.
FS12 reacts with existing hard deposits and fouling on tubes by increasing their melting point and reduces them to soft powdery ash.
FS12 also neutralises sulphur deposits on the cold end of the flue gas path preventing cold end corrosion and eases man entry during a maintenance or inspection shutdown.
Using FS12 for shutdowns and turnarounds results in the reduction of ash deposits, prevention of both high temperature and low temperature corrosion, and a safer operating environment for maintenance teams. Ultimately, this leads to quicker and safer turnarounds.
During the 40 day turnaround period the tubes did not go hygroscopic even when exposed to normal wet atmosphere for 40 days, therefore, there was no sulphuric acid corrosion attack issues and the main aim of the Injection Programme was fulfilled.