How to Improve the Anti - fouling Performance of Structured Packing?

structured packing is a core tower internal in chemical separation, offering high efficiency and low pressure drop. However, fouling—caused by solid/liquid deposits—impairs performance, reducing efficiency and increasing costs. This article explores actionable strategies to boost anti-fouling performance. Material selection: Use low-surface-energy materials like PP/PTFE to resist adhesion. Add antimicrobial/hydrophilic modifiers to prevent microbial growth and water-based deposits. Structural optimization: Minimize dead zones by increasing channel area (e.g., 0.5→0.8 mm in 125Y→250Y types) and adjust corrugation angle (30°-45°) to improve flow and prevent stagnation. Surface modification: Plasma polymerization or nanoscale silica coatings create superhydrophilic surfaces, allowing liquids to flow off. Ceramic coatings resist thermal stress in high-temp environments. Operational control: Regulate linear velocity (below critical thresholds), temperature (to avoid supersaturation), and pH (to inhibit scaling). Combine with online ultrasonic/chemical cleaning and offline washing for long-term efficiency. By integrating these methods, structured packing anti-fouling can be enhanced, improving tower internal efficiency, reducing energy use, and extending service life in chemical/petro/environmental engineering.