What Are the Applications of Structured Packing in Fertilizer Plants?

structured packing plays a vital role in fertilizer plants, serving as a core component of tower internals to enhance separation efficiency in various processing units. In ammonia synthesis plants, it is widely used in shift gas desulfurization towers and carbon monoxide shift converters. With its high specific surface area (typically 250-500 m²/m³) and ordered channel structure, structured packing ensures uniform gas-liquid contact, accelerating reaction rates and improving gas purification efficiency. For urea production, it finds applications in urea stripper towers, where its corrosion resistance (especially to high-temperature and high-pressure urea solution) and stable operation help reduce maintenance frequency and extend equipment life. In nitric acid and phosphoric acid production, structured packing with special materials (like 316L stainless steel or PTFE) is employed in absorption towers and extraction columns, effectively handling corrosive media and achieving high-purity product separation. Additionally, structured packing often works alongside other tower internals such as liquid distributors and redistributors, ensuring even liquid distribution and preventing wall flow, thus maximizing tower performance. Its advantages include high theoretical plate number, low pressure drop, and small hold-up, making it an ideal choice for large-scale fertilizer production, significantly boosting plant capacity and product quality.