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Rice husk, a common agricultural waste and renewable biomass, was pyrolyzed and then impregnated with NH4Cl and NH4Br to develop an efficient sorbent for gaseous mercury removal from flue gas. The sorbents’ performance was first investigated in a fixed-bed system with N2 atmosphere at 150°C and then in an entrained-flow system with real coal-fired flue gas at 150°C. For comparison, a commercial coal-based...
Effect of SO 2 on elemental mercury (Hg 0 ) oxidation over a highly active CeO 2 –TiO 2 catalyst was systematically investigated. SO 2 was found to have different, even contrary, effects on Hg 0 oxidation under different flue gas conditions. In pure N 2 atmosphere, SO 2 inhibited Hg 0 oxidation. In N 2 plus O 2 ...
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