Smart Descaling of Boiler 101F of the 10th South Pars Gas Refinery with Mitreh Solutions

In a specialized project in August 2015, the Abrizan team accurately identified the type of scale in Boiler 101F of the 10th South Pars Gas Refinery and performed a safe and effective descaling operation using Mitreh brand chemical solutions — without damaging the metals and with full customer satisfaction.

What were the challenges in Boiler 101F?

Laboratory analysis of the scale samples showed that the boiler’s internal layers were a combination of the following:

• Steel corrosion products (iron oxides)
• Carbonate and sulfate deposits (caused by feedwater hardness)
• Thin layers of soot and grease (possibly caused by thermal or oil leaks)

This complex combination required a multi-purpose chemical solution that was in line with international standards — not just a regular acid wash.

✅ Abrizan Solution: Engineered Cleaning with Mitreh Solutions

With over 20 years of experience in the water and oil industries, the Abrizan team designed a customized cleaning protocol that included the following steps:

1. Pre-rinse with an anti-foaming agent and organic cleaner to remove grease and soot

2. Main rinse with Mitreh anti-scale solution formulated to simultaneously dissolve metal oxides and mineral deposits

3. Post-rinse protection with Mitreh corrosion inhibitor to prevent corrosion after cleaning

4. Online monitoring of pH, temperature and chemical concentration during operation

All steps were performed in accordance with NACE and ASTM standards and no secondary corrosion damage was caused to the boiler metal structure.

Why was this project successful?

✅ Accurate identification of the type of deposit in the specialized laboratory of Abrizan

✅ Special formulation of the “Mitreh” solution for the complex composition of deposits

✅ Professional execution by a team of experts with experience in southern gas refineries

✅ Observance of safety and protection of equipment at all stages

After inspecting the results, the managers of the 10th refinery expressed their complete satisfaction with the quality of the chemical and the accuracy of the Abrizan team’s execution.

❓❓❓ Frequently asked questions ❓❓❓

❓ Is there a risk of chemical cleaning of the boiler corrosion?

No — if it is done with standard chemicals and under specialized supervision. “Mitreh” solutions are designed with corrosion inhibitors to protect the metal during and after cleaning.

❓ When should the boiler be cleaned?

In case of reduced thermal efficiency, increased pipe wall temperature, or detection of deposits during periodic inspections.

✍️ Conclusion: A reliable solution for your critical equipment

Industrial boilers are the backbone of processing units. Smart descaling not only extends equipment life, but also prevents costly downtime.

If you operate in the oil, gas, petrochemical or power plant industries, Abrizan can design a customized solution for you by providing accurate sediment analysis and “Mitreh” solutions.