朱文炳论文“Sulfur Abundant S/FeS2 for Efficient Removal of Mercury from Coal-fired Power Plants”被Fuel接收发表

Release time:2018-06-04

Description of Publication:Sulfur abundant S/FeS2 prepared by a hydrothermal method was employed for removing elemental mercury (Hg0) from coal-fired flue gas at low temperature. The S/FeS2 exhibited optimal Hg0 adsorption performance at 80 °C, which matched the temperature window between the flue gas desulfurization (FGD) and wet electrostatic precipitator (WESP) systems. The adverse effects of H2O and SO2 on Hg0 adsorption were slight. The Hg0 adsorption capacity of S/FeS2 was up to 2732 μg/g when achieved 50% breakthrough threshold. Both elemental sulfur (S) and FeS2 in the S/FeS2 contributed to the excellent Hg0 adsorption capacity. The mercury leaching tests show that only 0.00076% mercury adsorbed on the S/FeS2 was leached out. The mercury concentration in leachate was 0.694 μg？L-1, which was much lower than that for a commercial AC (1.214 ？g？L-1). Furthermore, the S/FeS2 presented about 95% oxidized mercury (Hg2+) adsorption efficiency from WESP effluent.

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