| 摘要 |
PURPOSE: A method of an essentially complete elimination of remaining traces of mercury in gases, such as roaster gases containing SO2, and which have been treated in a chloride washer for removing elementary Hg is provided. CONSTITUTION: In a method of an essentially complete elimination of remaining traces of mercury in gases, such as roaster gases containing SO2, and which have been treated in a chloride washer for removing elementary Hg, the method for eliminating traces of mercury in gases is characterized in that the gas is introduced to a scrubber plant where the same is washed with a washing liquid such that any content of gaseous HgCl2 in the gas is absorbed by the washing liquid, that the gas is subjected to a turbulent and mechanical action in the scrubber so as to physically put together any Hg, HgCl2 and Hg2Cl2 and other compounds of Hg present in particle or drop form into bigger aggregates or agglomerates and that thus formed aggregates or agglomerates and present bigger particles are brought to be separated from the gas and then be collected and removed, wherein the washing liquid essentially is water or dilute aqueous liquid.
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