Emission control system

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture

Reexamination Certificate

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Details

C423S235000, C423S242100, C423S243010, C423S393000, C423S522000, C422S105000, C422S108000, C422S168000, C422S169000, C422S170000, C422S172000, C422S173000

Reexamination Certificate

active

10845418

ABSTRACT:
Methods and apparatus utilizing hydrogen peroxide are useful to reduce NOx, SOx and mercury (or other heavy metal) emissions from combustion flue gas streams. Continuous concentration of hydrogen peroxide to levels approaching or exceeding propellant-grade hydrogen peroxide facilitates increased system efficiency. In this manner, combustion flue gas streams can be treated for the removal of NOx, SOx and heavy metals, while isolating useful by-products streams of sulfuric acid and nitric acid as well as solids for the recovery of the heavy metals.

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patent: 2006/0057047 (2006-03-01), Schoubye et al.

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