Process and apparatus for improving the operation of wet scrubbers
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United States of America Patent
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Mar 22, 2016
Grant Date -
Aug 28, 2014
app pub date -
Feb 26, 2014
filing date -
Feb 27, 2013
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Abstract
The operation of wet scrubbers, especially those based on calcium carbonate, is improved by reducing the quantities of soluble chlorides in the combustion gases fed to the scrubbers. HCl in the combustion gases is converted to a solid copper chloride and removed before the chloride reaches the scrubber. Combustion gases are treated with an aqueous copper compound referred to as copper-bearing chloride remediator (CBCR). Effective temperatures for introducing the CBCRs are preferably within the range of from about 250° to 900° F. Among the more preferred CBCRs are copper compositions including copper, an organic moiety and/or an ammonia moiety.
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