Chemical Multi-effect Evaporation Foam Control

Viscous foam layers (>1.2m thick) in chemical multi-effect evaporators reduce heat transfer by 30% and cause overflow accidents due to surfactants and high salt content (Cl⁻>50,000mg/L). Chemi Tech’s defoamer (KM-8805) delivers:

Nanocarrier penetration: 200nm silicone-polyether particles disrupt foam lamellae；

Charge adaptation: Zeta potential adjusts (±30mV) to resist cation interference；

Thermal resistance: Stable at 250℃ without degradation.

Case study:

A Jiangsu pesticide plant eliminated foam-induced shutdowns with 60ppm KM-8805：

Heat exchange efficiency restored to 92%；

Evaporation capacity increased by 28%；

Annual savings: RMB 2.1 million.

Dosage: 40-80ppm via metering pump.