Chemical Cleaning

PetroDecon specializes in engineered chemical cleaning solutions for critical process equipment across multiple end markets; refining, petrochemical, utilities, pulp and paper industries. Whether pre-commissioning, start-up, maintenance, project, environmental compliance, or problem related issues, our approach is built around precision, safety, and field-proven results. We clean and restore equipment such as exchangers, towers, piping systems, knockout drums, vessels, and tanks using tailored chemical formulations applied through a variety of methodologies and proven techniques. We customize every cleaning solution to incorporate a number of critical criteria; application safety, system metallurgy, fouling or deposit composition and characteristics, operational restrictions, waste volumes, waste profiles, disposal options, and overall economics.

Equipment We Clean

We provide chemical cleaning for a wide range of industrial systems and components, including:

Heat exchangers
Boilers (natural and controlled circulation)
Condensers
Reactors
Piping systems
Cooling towers
Tanks and vessels

Fouling Types We Address

Our cleaning programs are designed to remove:

Iron oxides (magnetite, hematite)
Calcium and magnesium scales
Organic residues (asphaltenes, polymers, coke)
Pyrophoric materials
Copper and zinc deposits

Solvent Systems

We select from a broad range of solvent systems based on deposit type, metallurgy, and safety requirements:

Inhibited mineral acids for rapid scale and oxide removal
Chelant-based systems (e.g., EDTA, citric) for iron and copper
Organic acid blends for chloride-sensitive systems
Alkaline oxidizers for carbonaceous and pyrophoric deposits

Passivation & Neutralization

Post-cleaning, we apply tailored treatments to stabilize surfaces and prevent corrosion:

Neutralization with soda ash, caustic, or ammonia
Passivation using sodium nitrite blends, hydrazine-based systems, or organic chelants
Each plan is engineered to ensure safe re-entry, minimize corrosion, and support long-term reliability

Commissioning & Fouling Removal

PetroDecon’s pre-commissioning services are designed to prepare new systems for startup by removing mill scale, rust, oils, and construction debris that can compromise performance or cause early corrosion. Once cleaned, we apply passivation treatments to protect exposed metal surfaces and ensure long-term system integrity. For operational and maintenance scenarios, we deploy specialty solvents and advanced application techniques to target and remove persistent fouling such as asphaltenes, polymers, and scale. These services are essential for restoring heat transfer efficiency, preventing under-deposit corrosion, and extending the life of critical process equipment.