Reduction of SO₂ to Elemental Sulfur in Flue Gas Using Copper-Alumina Catalysts

Table 2

The amount of total, weak, moderate, and strong acid sites of Al₂O₃ and Al₂O₃-Cu (10%) catalysts.

Catalyst	Al2O3	Al2O3-Cu (10%)
Weak acid sites (mmol/g)	0.0416	0.0880
Moderate acid sites (mmol/g)	0.1084	0.137
Strong acid sites (mmol/g)	0.2356	0.188
Total acid sites (mmol/g)	0.3857	0.414