Capture of gaseous elemental mercury from flue gas using a magnetic and sulfur poisoning resistant sorbent Mn/γ-Fe2O3 at lower temperatures

Elemental mercury capture and oxidation by a regenerable manganese-based sorbent: The effect of gas composition

“…The critical species for the sorbent operation is SO 2 which irreversibly poisons the manganese active phase. If this species is present in the gas, different sorbent formulations might be adopted, since the addition of metal dopants (like molybdenum or iron oxide) has been suggested to improve the sulfur tolerance of Mn-based catalysts [18,19]. …”

Mechanisms and roles of fly ash compositions on the adsorption and oxidation of mercury in flue gas from coal combustion

“…Al 2 O 3 accounts for a high proportion of 21.77%. Although TiO 2 and MnO display relatively low proportions (3.15% and 0.88%, respectively), previous studies focused on their mercury catalysis efficiencies [38,39]. In this study, the adsorption and catalytic oxidation of the UBC and five potential metallic oxides are investigated by using their pure substance as substitutes to understand the mechanisms of mercury adsorption and oxidation.…”

Study of Hg0 removal characteristics on Fe2O3 with H2S

“…8C presented the Fe 2p core level spectra of samples before and after Hg 0 oxidation at different temperatures. As shown in the figure, the Fe 2p core levels are split into 2p 3/2 and 2p 1/2 doublets due to the spin-orbit coupling [30]. It has been previously shown that Fe 2p 3/2 and Fe 2p 1/2 binding energies are strongly dependent on iron states.…”