Conversion of Sulfur to Sulfur Dioxide S → SO2
Sulfur used in Caspian sulfuric acid plant has a purity of 99.8%. Sulfur is first charged by a loader into smelting pools. In this part, sulfur is melted in contact with steel coils that have reached a temperature of 130 ˚ by the boiler, and then molten sulfur enters the sedimentation pools through double-walled pipes.
Sulfur is first charged by a loader into smelting pools. In this part, sulfur is melted in contact with steel coils that have reached a temperature of 130 ˚ by the boiler, and then molten sulfur enters the sedimentation pools through double-walled pipes. As its name suggests, in this part, molten sulfur after passing through 9 settling pools, its impurities are deposited in the bottom of the pools, and pure molten sulfur enters the furnace by pump pressure in order to increase the heat up to 1000˚.
At this stage, the sulfur is burned at a high temperature and converted to SO2 gas by combining the air that enters the furnace through the Italian Roboski blowers.
