The influence of the catalyst worktime on SO₂ emission quantity from the sulfuric acid system and the catalyst waste material

The catalytic process of SO₂ to SO₃ oxidation is the main step of sulfuric (VI) acid formation. The sustained catalyst operating due to its structural and textural modifications could disturb the process course. This paper includes the influence of the vanadic catalyst worktime on SO₂ emission and the expected amount of the obtained waste material of the inactivated catalyst.