Sour water tanks contain some of the most hazardous materials in refinery operations—high concentrations of hydrogen sulfide (H2S) and pyrophoric iron sulfide. Traditional cleaning methods for these tanks expose workers to extreme toxicity risks and require extensive degassing periods.

FQE Chemicals has revolutionized sour water tank cleaning with chemistry specifically designed to neutralize and remediate H2S and pyrophoric iron sulfide in-situ—while the material is still inside the tank. Our approach eliminates the need for external batch treatments, making the process safer and significantly faster. We use FQE H2S Scavenger to neutralize hydrogen sulfide and FQE Pyrophoric to passivate iron sulfide, addressing both hazards simultaneously.

Our process focuses on cleaning in situ for faster, safer results. By neutralizing hazards before tank entry, we dramatically reduce worker exposure and eliminate the lengthy degassing periods associated with traditional methods.