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Dixon Ring is a high-performance random packing designed to enhance mass transfer in industrial separation processes. Featuring a unique saddle-shaped structure with optimized surface geometry, it offers superior efficiency, low pressure drop, and reliable operation across diverse chemical and petrochemical applications.
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Applications
- Distillation and Fractionation
Widely used in distillation columns for separating liquid mixtures in industries such as fine chemicals, pharmaceuticals, and petrochemicals. It excels in processes requiring high purity, such as solvent recovery, hydrocarbon refining, and the separation of organic compounds, where precise component isolation is critical.
- Gas Absorption and Scrubbing
Applied in absorption towers for gas purification tasks, including the removal of acidic gases (e.g., SO₂, HCl) from industrial exhausts and the absorption of volatile solvents from gas streams. Its structure ensures effective gas-liquid contact, enhancing absorption efficiency and reducing emissions of harmful pollutants.
- Liquid-Liquid Extraction
Utilized in extraction columns for separating solutes between immiscible liquid phases in chemical processing and wastewater treatment. The saddle-shaped design promotes intimate contact between the two liquid phases, facilitating efficient solute transfer and improving separation yields.
Advantages
- Enhanced Mass Transfer Efficiency: The saddle-shaped structure provides a large, accessible surface area for gas-liquid or liquid-liquid contact, while its curved geometry reduces fluid stagnation and promotes film renewal. This results in higher mass transfer rates compared to traditional packings like raschig rings.
- Low Pressure Drop: The open, symmetric design minimizes resistance to fluid flow, allowing higher vapor and liquid throughput with lower energy consumption. This makes it suitable for energy-sensitive processes where reducing pumping or compression costs is a priority.
- Improved Fluid Distribution: The irregular packing arrangement disrupts channeling and ensures more uniform fluid distribution across the packing bed. This stability prevents localized inefficiencies and maintains consistent performance under varying flow conditions.
- Material Versatility: Available in materials such as ceramic, metal (stainless steel, carbon steel), and plastic (PP, PVC), it adapts to corrosive, high-temperature, and high-pressure environments. Ceramic variants resist chemical attack, while metal options handle high temperatures, making it suitable for diverse operating conditions.
Technical Specifications Table
Parameter | Ceramic Dixon Ring | Metal (Stainless Steel) Dixon Ring | Plastic (PP) Dixon Ring |
Nominal Size | 10mm, 15mm, 25mm | 10mm, 15mm, 25mm, 38mm | 15mm, 25mm, 38mm |
Specific Surface Area | 300–500㎡/m³ (varies by size) | 280–450㎡/m³ (varies by size) | 250–400㎡/m³ (varies by size) |
Void Fraction | 70–78% | 80–88% | 75–85% |
Bulk Density | 600–750 kg/m³ | 850–1000 kg/m³ | 120–150 kg/m³ |
Pressure Drop | 0.3–1.2 kPa/m (typical) | 0.2–1.0 kPa/m (typical) | 0.25–1.1 kPa/m (typical) |
Maximum Operating Temperature | Up to 1000°C | Up to 600°C | Up to 100°C (standard grade) |
