How to pickle Intalox saddle ring

Intalox saddle ring packing, a key tower internal in distillation and absorption systems, requires proper pickling to remove surface contaminants, oxides, and residues, enhancing its mass transfer efficiency and lifespan. Here’s a step-by-step guide: First, gather tools: acid solution (e.g., 5-10% nitric acid), pH meter, plastic buckets, brushes, and safety gear (gloves, goggles). Pre-inspect the packing for cracks or damage. Next, rinse with deionized water to remove loose debris. Then, immerse the saddle rings in the acid solution at 50-60°C for 30-60 minutes, ensuring full coverage. Agitate gently to dislodge stubborn deposits. After pickling, drain the acid and neutralize with a 2-3% sodium bicarbonate solution for 15 minutes, then rinse thoroughly with water. Finally, dry the packing in a low-temperature oven (below 80°C) and inspect for uniform cleaning. Proper pickling ensures a clean surface, preventing plugging and improving contact between fluid and gas, critical for optimal tower internal performance.