Tag Archives: Mercury oxidation
Bromine Supplementation for Enhanced Selective Catalytic Reduction Mercury Oxidation: 2017 Laboratory and Field Studies
In addition to their primary purpose of reducing nitrogen oxides, selective catalytic reduction catalysts in power plants oxidize mercury, a beneficial side-reaction facilitated by halogens (mainly chlorine and bromine) in the flue gas. Certain flue gases, such as those associated with firing low-halogen coals, can benefit from halogen supplementation. To better understand catalyst mercury oxidation […]
Selective catalytic reduction systems in power plants are designed to remove nitrogen oxides from flue gas and can also oxidize and remove mercury. But laboratory tests indicate that carbon monoxide can inhibit mercury oxidation across selective catalytic reduction catalysts. This study evaluated two catalyst formulations under actual flue gas conditions to confirm these effects.