Establishing a self-supporting system of H2S production from SO2 with induced catalytic reduction process for mercury capture with super-large enrichment

Catalytic hydrolysis of carbonyl sulfide in blast furnace gas over Sm-Ce-Ox@ZrO2 catalyst

“…When the Sm 2 O 3 doping level reached 3%, the catalyst surface was enriched with a large number of spherical particles, and more obvious large pores were observed between the particles. 49 When the Sm 2 O 3 doping level reached 3%, the catalyst surface was enriched with a large number of spherical particles, and more obvious large pores were observed between the particles. The porous structure contributed to an increased specific surface area of the catalyst, which was also confirmed by BET test results.…”

Application Study on the Activated Coke for Mercury Adsorption in the Nonferrous Smelting Industry

“…Adding 2000 ppm SO 2 into pure N 2 decreased Hg 0 removal efficiency from 95% to 90%, suggesting that SO 2 hindered the adsorption activity of Hg 0 by the AC. This inhibition can be attributed to two factors [23]: (1) the competitive adsorption of SO 2 with Hg 0 on the surface of the adsorbent, and (2) the reaction of SO 2 with the active sites and oxygen-containing functional groups, leading to a reduction in adsorption activity [24]. Conversely, when both SO 2 and O 2 were present in the atmosphere, the Hg 0 removal efficiency increased from 95% to 98%, indicating that the simultaneous presence of SO 2 and O 2 facilitated Hg 0 removal.…”

Polyaniline Composites Containing Eco-Friendly Biomass Carbon from Agricultural-Waste Coconut Husk for Enhancing Gas Sensor Performance in Hydrogen Sulfide Detection

“…The severity of the health effects of H 2 S varies depending on its concentration. At low concentrations (~1.5 ppm), H 2 S has a rotten egg odor and can cause chronic symptoms, such as memory loss [4], facial paralysis [5], and nerve tissue damage [6], but is not life-threatening. By contrast, at high concentrations, H 2 S is extremely dangerous.…”