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Process principle of supergravity desulfurization equipment
Date: 2025-07-29Read: 5
The process principle of the supergravity desulfurization equipment is based on the enhanced gas-liquid mass transfer and reaction process generated by the rotating supergravity field. The core process is as follows:
1. Enhanced gas-liquid reverse contact
Injection of exhaust gas and desulfurizer: Sulfur containing exhaust gas (such as SO ₂, H ₂ S) enters the outer edge of the rotor from the tangential or upper part of the equipment, and desulfurizing solution (such as alkali solution, oxidant solution) is sprayed from the center or lower part to the inner edge of the rotor.
The action of supergravity field: The high-speed rotation of the rotor generates centrifugal acceleration that can reach hundreds to thousands of times the gravity of the Earth. Under the action of centrifugal force, the liquid is broken into micrometer sized droplets, liquid films or liquid filaments by the packing, forming a huge and rapidly renewing phase interface.
2. Efficient Mass Transfer and Reaction
Instantaneous reaction: The gas phase passes through the packing layer at high speed in a hypergravity environment, and mixes violently with dispersed droplets in curved channels. The gas-liquid contact area increases significantly, and SO ₂/H ₂ S rapidly undergoes chemical absorption with the desulfurizer (such as generating sulfate or elemental sulfur).
Mass transfer enhancement: The high gravity greatly improves the mass transfer coefficient, increasing the reaction rate by 1-3 orders of magnitude compared to traditional towers, and the desulfurization efficiency can reach over 98.5%.
3. Product separation and recycling
Gas liquid separation: The purified gas is discharged from the center of the rotor, and the liquid carrying reaction products (such as salt containing slurry) is thrown to the bottom of the equipment casing.
Slurry treatment: The slurry flows into the settling tank to separate solid residues (such as ash and sulfur particles), and the clear liquid is oxidized or supplemented with fresh desulfurizer before being recycled.
4. Key technological advantages
Anti clogging design: high-speed rotation prevents packing blockage, suitable for gases containing dust or impurities.
Compact and efficient: The equipment volume is only 2% -5% of traditional desulfurization towers, with reduced energy consumption and can be installed in any direction.
Typical applications include desulfurization of associated gas in oil fields, purification of coke oven gas, and treatment of ship exhaust. The concentration of SO ₂ in exhaust emissions can be controlled below 300mg/m ³.
