Barrier discharge conversion of SO.sub.2 and NOx to acids
AssigneePowerspan Corp.
InventorsFrancis R. Alix, S. Edward Neister, Christopher R. McLarnon, Phillip D. Boyle
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Abstract
A process for reducing particulate, Hg, NOx, and SO.sub.2 emissions from the combustion of fossil fuel while providing the capability of producing an end product that is commercially useful comprising the steps of oxidizing Hg, NOx and SO.sub.2 using a barrier discharge reactor to produce the HgO and acids HNO.sub.3 and H.sub.2 SO.sub.4, collecting the HgO, acids and particulates in a wet ESP, and then draining them from the wet ESP to remove them from the flue gas stream.
Claims20
A process for reducing particulate, Hg, NOx, and SO.sub.2 emissions from a flue gas stream comprising the steps of
- a. oxidizing Hg, NOx and SO.sub.2 in a flue gas stream to HgO, HNO.sub.3 and H.sub.2 SO.sub.4, respectively, using a barrier discharge reactor, said NOx comprising NO and NO.sub.2 ;
- b. collecting particulate emissions, HgO, NO.sub.2, SO.sub.2, HNO.sub.3, and H.sub.2 SO.sub.4 in a wet electrostatic precipitator, forming a mixture;
- and
- c. draining the mixture from the wet electrostatic precipitator, thereby reducing particulate, Hg, NOx, and SO.sub.2 emissions from a flue gas stream.
Dependencies are inferred from the claim text.