Investigation on Impacts of Biomass Addition upon Particulate-Bound Mercury Formation in Flue Gas

Experimental investigation on impacts of biomass addition on particulate-bound mercury formation was conducted with a high temperature entrained flow reactor in this paper. 5%, 10% and 15% of biomass was added into a coal respectively by weight. Mercury concentrations in fly ash are obtained through EPA7473 method employing a DMA80 direct mercury analyzer. From the data obtained it can be concluded that the addition of biomass has the ability to enhance the formation of particulate-bound mercury. With increasing portion of biomass that is added, more mercury entered the reaction system is transformed into particulate-bound form. This enhancement can be attributed to homogenous oxidation of mercury.