APPARATUS AND METHOD OF USING SOUND WAVES TO REDUCE SORBENT CONSUMPTION IN DRY SORBENT INJECTION AIR POLLUTION CONTROL SYSTEMS
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United States of America Patent
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Issued Date -
Aug 18, 2016
app pub date -
Feb 12, 2015
filing date -
Feb 12, 2015
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Abstract
Methods and systems for reducing emissions produced in a combustion system are described. A sorbent material is introduced into the emission gases flowing from the combustion system. Sound waves are also applied to the emission gases in the flow path. The sound waves can be introduced into the emission gas flow path at a location upstream from where the sorbent is introduced into the emission gas flow path. The sound waves can also be introduced into the emission gas flow path such that the sound waves travel in a downstream direction in the flow path. The emissions can include Hg and acid gases such as SO2. The sorbent material can be trona or activated carbon. The sound waves enhance mixing of and mass transfer between the sorbent and pollutants in the gas thereby reducing the amount of sorbent necessary to reduce harmful emissions.
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