Method and apparatus for the enhanced removal of aerosols and vapor phase contaminants from a gas stream
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United States of America Patent
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Aug 14, 2012
Grant Date -
Aug 12, 2010
app pub date -
Apr 22, 2010
filing date -
Nov 3, 2006
priority date (Note) -
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Abstract
The invention provides methods and apparatuses for removing aerosols and, in some cases, vapor phase contaminants, such as mercury, from a gas stream. One method is directed to the removal of additional aerosols from a gas stream from which aerosols have previously been removed by using a screen in combination with a primary aerosol collection device. Another method is directed to the removal of both aerosols and vapor phase contaminants by using a sorbent in combination with a screen. Another method is directed to the removal of vapor phase contaminants by using a catalyst to convert the contaminant to a form that is more easily removed from the gas stream and optionally injecting a chemical to increase the rate of conversion. The invention also provides various apparatuses for use in performing the various methods of the invention.
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