Barrier discharge conversion of SO.sub.2 and NOx to acids
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United States of America Patent
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Feb 16, 1999
Grant Date -
N/A
app pub date -
Oct 9, 1997
filing date -
Oct 9, 1996
priority date (Note) -
Expired
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Abstract
A process and apparatus for reducing particulate, nitrogen oxides ('NOx'), sulfur dioxide ('SO.sub.2 '), and mercury ('Hg') emissions from the combustion exhaust of fossil fuel fired plants while producing an end product that is commercially useful, comprising the steps of oxidizing Hg, NOx and SO.sub.2 using a barrier, pulse, corona, or electron beam electrical discharge apparatus to produce HgO and the acids HNO.sub.3 and H.sub.2 SO.sub.4, collecting the HgO, acids and particulates in a wet ESP, and separating the particulates from the collected acid mixture, then separating and concentrated the acids for industrial use.
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