Non-thermal plasma apparatus utilizing dielectrically-coated electrodes for treating effluent gas

An apparatus for converting nitric oxide in exhaust gas into nitrogen dioxide, comprising:

• a plasma reactor having a plurality of electrodes defining at least one reaction zone receiving the gas, said electrodes each having an electrode plate and a fluoropolymeric substance applied to said electrode plate;
• and
• a voltage supply connected to the electrodes to provide a voltage across the electrodes;
• and
• an ethanol bath through which at least a portion of the gas is diverted.

An apparatus for converting nitric oxide in exhaust gas into nitrogen dioxide, comprising:

• a plasma reactor having a plurality of electrodes defining at least one reaction zone receiving the gas, said electrodes each having an electrode plate and a fluoropolymeric substance applied to said electrode plate;
• a voltage supply connected to the electrodes to provide a voltage across the electrodes;
• and
• an ethanol injector for introducing ethanol into said gas;
• and an ethanol bath through which at least a portion of the gas is diverted.

A non-thermal plasma reactor for treating nitric oxide-bearing exhaust gas, comprising:

• a plurality of electrodes defining at least one reaction zone receiving the gas, said electrodes each having an electrode plate;
• a voltage supply connected to the electrodes to provide a voltage across the electrodes;
• and
• an ethanol bath through which at least a portion of the gas is diverted.