Activation of a material containing alkaline-earth carbonate and alkaline-earth hydroxide for the dry scrubbing of flue gas
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United States of America Patent
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Issued Date -
Jun 11, 2015
app pub date -
Apr 2, 2013
filing date -
Mar 30, 2012
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Abstract
The invention relates to a method for increasing the absorbency of a material containing alkaline-earth carbonate and alkaline-earth hydroxide with regard to sulfur oxides and/or other pollutants, in particular in flue gas, wherein the material containing alkaline-earth carbonate and alkaline-earth hydroxide is activated by heating said material to approximately 250° C. to approximately 750° C. for a time period of 1 minute to 12 hours.
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