The application of coal liquefaction residue raffinate slag-based sorbents for elemental mercury removal from coal-fired flue gas

Structure-Directing Role of Support on Hg0 Oxidation over V2O5/TiO2 Catalyst Revealed for NOx and Hg0 Simultaneous Control in an SCR Reactor

“…Mercury (Hg) caused various kinds of harmful impacts on human health and biological systems due to its high toxicity and bioaccumulation. − In general, mercury exists in the flue gas in three forms of particle-bound mercury (Hg p ), oxidized mercury (Hg 2+ ), and elemental mercury (Hg 0 ) . Among these mercury-containing compounds, it is extremely difficult to remove Hg 0 by currently available air pollution control devices (APCDs), due to its high volatility and insolubility in water. , To date, several technologies have been successfully developed for Hg 0 control, such as adsorption, − catalytic oxidation, , and photochemical oxidation . Among these, catalytic oxidation of Hg 0 in selective catalytic reduction (SCR) system has proven to be the most economic technology, as which a low-cost option for control of mercury can be achieved by this co-benefit of SCR installation. − Notably, the use of suitable catalysts could effectively promote the Hg 0 oxidation …”