S+O2→SO2S + O_2 \rightarrow SO_2S+O2→SO2
: The sulfur dioxide is then oxidized to sulfur trioxide (SO₃) using a vanadium pentoxide (V₂O₅) catalyst at elevated temperatures (around 450 degree ) and pressures:
2SO2+O2→2SO32SO_2 + O_2 \rightarrow 2SO_32SO2+O2→2SO3
SO3+H2O→H2SO4SO_3 + H_2O \rightarrow H_2SO_4SO3+H2O→H2SO4
: The produced sulfuric acid can be concentrated through distillation or by using dehydration methods to remove excess water, ensuring a high-purity product suitable for various applications.
: Approximately 60% of sulfuric acid produced is used in the manufacture of phosphoric acid, which is then converted into phosphate fertilizers, essential for agriculture.
: In the petroleum industry, sulfuric acid is used in alkylation processes to produce high-octane gasoline. It helps remove impurities and enhances the quality of refined products.
: Lead-acid batteries, commonly used in vehicles, rely on sulfuric acid as an electrolyte. The acid facilitates the electrochemical reactions necessary for energy storage and discharge.
