In the purification process of industrial flue gas from power plants and steel mills, wet flue gas desulfurization (FGD) systems play a crucial role in controlling SO₂ emissions. However, this environmental guardian is often troubled by an "invisible enemy" - foam. These seemingly harmless bubbles actually pose serious risks, not only reducing desulfurization efficiency but also potentially causing equipment damage and gypsum quality deterioration.

The "Silent Killer" in Desulfurization Systems: Hazards of Foam

In FGD absorber towers, the slurry containing abundant surfactants combined with bubbles generated during forced oxidation easily forms stable foam layers. This foam causes three major problems:

1、Reduced desulfurization efficiency: Foam occupies reaction space, decreasing gas-liquid contact area
2、Equipment operation issues: Foam overflow leads to slurry loss and equipment corrosion
3、Byproduct quality decline: Foam carries impurities, affecting gypsum purity and dewatering performance

One large power plant saw its desulfurization efficiency drop from 98% to 85% due to foam issues, resulting in nearly 1,000 tons of additional SO₂ emissions annually and heavy environmental penalties.

Chemi Tech Desulfurization Defoamer: Technology Empowering Environmental Protection

Addressing the special conditions of FGD systems, Chemi Tech's R&D team has developed a new generation of high-efficiency defoamers after years of research. Using specially modified silicone as the main component, our product offers outstanding advantages:

1、Fast foam breaking: Penetrates foam film structure within 30 seconds
2、Long-lasting suppression: Resists high temperature and pH, effective for over 24 hours
3、 Environmentally safe: VOC-free, doesn't affect desulfurization reactions
4、 Cost-effective: Dosage only 1/3 of conventional products, reducing overall cost by 40%

Success Story: From Challenge to Breakthrough

A 2×1000MW unit at Huaneng Power struggled with persistent foam problems, experiencing significant absorber level fluctuations and high gypsum moisture content. After adopting Chemi Tech desulfurization defoamer:

1、Desulfurization efficiency stabilized above 98.5%
2、Gypsum moisture content reduced from 15% to 8%
3、Annual operation savings exceeded 3 million RMB
4、Successfully passed ultra-low emission verification

Choose Chemi Tech for Professional Assurance

As experts in environmental additives, Chemi Tech understands the operational characteristics of FGD systems. Our defoamers not only solve foam problems but also optimize overall system efficiency. We provide customized solutions for different fuel types and desulfurization processes.