Wet acid production technology can treat sulfur-containing compounds such as H₂S, SO₂, CS₂ (carbon disulfide), COS and others. The sulfur-containing gases, after combustion and/or purification, enter the converter, where SO₂ is oxidized to form SO₃ in the converter under vanadium catalyst catalysis. The process gas containing SO₃ then enters an acid condenser, where liquid concentrated sulfuric acid (H₂SO₄) with a mass fraction of at least 98% is formed. After condensation, the process gas is vented from the top of the condenser and the resulting concentrated sulfuric acid is cooled to 40°C and transported for external use.
The system of this equipment has a high level of heat energy utilization. Water-vapor or molten salt is used as the heat transfer medium to produce high quality steam that can be used for power generation or heat recovery. If the post-condensation process gas has more stringent emission requirements, it can be subjected to deep environmental treatment to achieve ultra-low emissions.
