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Fly ash from coal-fired power plant has been reported to be a promising sorbent for mercury capture. However, the nature of the Hg–fly ash interaction is still unknown. In this work, the thermal decomposition method is used to evaluate the effect of the fly ash composition on the retention of mercury in coal-combustion flue gas. Eight fly ash samples were collected from the electrostatic precipitators...
Elemental mercury emission from power station is hard to dissolve in water so that it is difficult to remove. Applying activated carbon or other sorbents to capture mercury in the flue gas has brought up wide attention. In order to develop coal-fired flue gas mercury sorbent which is effective with low consumption, CO2 activation and ZnCl2 impregnated and other methods have been conducted to modify...
The interactions of mercury with the carbon surface are investigated by performing the density functional electrical structure calculation. The five different carbon groups bonded with the elemental hydrogen and chlorine are proposed to build the carbon surfaces. The calculations are presented for mercury sorption on both on-top (T) and sixfold-angle (A) sites. The adsorption energy curve reveals...
More and more concern has been put on the mercury emitted from power stations burning coal because of its harm to human health. Both of the US EPA and European Commission have set regulations on the mercury emission from the electric utilities. China also pays more and more attention to the mercury emission and starts to sponsor the projects relative to the mercury emission and its control. Mercury...
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