| 摘要 |
A NOx reduction method includes treating a first gas containing NOx, producing a second gas containing NO2, reducing a portion of the NO2 in the second gas to N2, and producing a third gas containing less NOx than the first gas, substantially all of the third gas NOx being NO. The method also includes treating the third gas, producing a fourth gas containing NO2, reducing a portion of the NO2 in the fourth gas to N2, and producing a fifth gas containing less NOx than the third gas, substantially all of the fifth gas NOx being NO. Treating the first and/or third gas can include treatment with a plasma. Reducing a portion of the NO2 in the second and/or fourth gas can include reducing with a catalyst. The method can further include controlling energy consumption of the plasmas independent of each other.
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