“…in form of HgCl 2 ) and can also be captured with the fly ash in filters and precipitators (Senior et al, 2000;Pavlish, 2009;Sliger et al, 2000;Wilcox et al, 2012). In the past years considerable efforts have been dedicated to clarify how Hg is released, oxidized and captured in air-fired power plants and how this can be influenced to reduce Hg emissions and results have been summarized in a number of reviews and articles (Pavlish et al, 2003(Pavlish et al, , 2010Pavlish, 2009;Wilcox et al, 2012;Scheffknecht et al, 2012;Kolker et al, 2006;Spörl et al, 2014a). The most important factors influencing the concentration levels, speciation and removal of Hg from flue gas in air fired combustion are the content of Hg and Cl (and Br) of the coal, the combustion conditions, the SO x concentrations and speciation, the properties of the generated fly ash (i.e.…”