| 摘要 |
<p>A method for extracting gaseous contaminants in the form of mercury and toxic, organic compounds, such as dioxins, furans and the like, from a gas. The method is characterized by first passing the gas through a first filter substance having selenium as an active ingredient, so as to take-up essentially all mercury. The essentially mercury-free gas is then passed through a second filter substance which is able to take-up toxic organic compounds and which can be destroyed or regenerated by combustion. The inventive filter arrangement includes a first filter substance having selenium as its active ingredient. This first filter substance is disposed upstream of a second filter substance which is capable of adsorbing or absorbing toxic, gaseous organic compounds, such as dioxins and furans. <IMAGE></p> |
