Tag Archives: Selective catalytic reduction (SCR)
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Combustion and Fuel Quality Impacts on Post Combustion Environmental Controls—2019 Update
Researchers examined the impacts of challenging combustion conditions (such as flexible operations) and low-quality fuels on the performance of post-combustion pollution control devices. They developed and demonstrated methods and technologies to minimize the negative impacts.
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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 […]
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Field Demonstration of Reduced Load Selective Catalytic Reduction Operation
Because of low natural gas prices, many coal plants are being asked to operate at low loads, which may present technical challenges for selective catalytic reduction reactors used for NOx control. Vendors set a minimum operating temperature to protect the catalysts in the reactors. The objective of this research was to demonstrate that the reactors […]
