Adsorbents and Catalysts for Elemental Mercury Removal from Coal Combustion Flue Gas
This community develops materials and processes to capture gaseous elemental mercury from the exhaust streams of coal-fired power plants and industrial boilers.
The work centers on the design and evaluation of sorbents, primarily activated carbon and metal sulfides, to adsorb mercury vapor. Researchers investigate the mechanisms of mercury oxidation and capture, often using density functional theory to model interactions at the molecular level. A significant portion of the literature addresses the challenge of simultaneous removal of mercury alongside other pollutants like sulfur dioxide and nitrogen oxides. Studies frequently examine the impact of flue gas composition, such as the presence of sulfur or chlorine, on adsorption efficiency and the regeneration of spent sorbents. The focus remains on enhancing the performance of these materials under realistic combustion conditions, including high temperatures and complex gas mixtures found in coal-fired power generation.
The largest share of the community's output is found in mercury research, accounting for 2.3% of all tracked mercury studies, with 3,000 papers in this group. Carbon research contributes 985 papers, representing 0.1% of that element's total research, while sulfur research contributes 840 papers, or 0.3% of its total.
The community comprises 5,381 papers, publishing most frequently in Fuel, Chemical Engineering Journal, and Fuel Processing Technology.
Recent work continues to focus on optimizing adsorbent materials, such as metal-organic framework derivatives and modified carbon structures, for efficient mercury capture. Newer studies also explore synergistic removal of mercury with other pollutants like CO2 and nitrogen oxides, as well as the application of machine learning to optimize flue gas desulfurization processes in coal power plants.