Method for removing mercury vapor in gas
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United States of America Patent
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Issued Date -
Jan 8, 2009
app pub date -
Feb 29, 2008
filing date -
Mar 1, 2007
priority date (Note) -
Abandoned
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Abstract
When sulfur oxides are present in mercury vapor-containing gas, the adsorption of mercury vapor by activated carbon is inhibited. Therefore, there has been demand for development of a method for effective adsorption removal of mercury vapor even in the coexistence of sulfur oxides.Efficient and long-term removal of mercury vapor was made successful by contacting an activated carbon adsorbent consisting of 100 parts by weight of activated carbon impregnated with 5 to 70 parts by weight of only an alkali metal halide, with mercury vapor in sulfur oxide-containing gas.
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