Abstract: Gas treatment systems and methods are provided. A system includes at least one device defining a space and having a gas inlet and a gas outlet. The device also includes an electrode assembly, where the electrode assembly includes a dielectric plate, at least one first electrode, at least one second electrode, and a conductive layer. The electrodes are elongate electrodes disposed on a first major surface of the dielectric plate and arranged substantially in parallel. Further, the conductive layer extends over a second major surface of the dielectric plate, is electrically coupled to the one of the electrodes, and is electrically isolated from the other electrode. The system includes a circuit configured for generating a pulsed electric field between the electrodes.

Abstract: Systems and methods for treatment of a heated exhaust gas including hydrocarbons are provided. A method includes providing a first gas including a gaseous mixture of vaporized diesel fuel and steam and treating the first gas using at least one corona discharge including a combination of streamers to transform the first gas into a second gas including volatile partially oxidized hydrocarbons (PO—HC) and hydrogen gas (H2), the combination of streamers including primarily surface streamers. The method also includes extracting at least a portion of vaporized diesel fuel and steam from the second gas to form a third gas and directing a combination of the third gas and the exhaust gas into a nitrogen oxides (NOx) reduction reactor.

Abstract: A novel plasma reactor is provided that includes a discharge chamber with dimensional characteristics and configuration of dielectric and electrodes that optimize efficiency based on the characteristics of the corona discharge streamers generated. Upon application of a pulsed high voltage potential, the discharge chamber enables formation of plasma where surface streamers play a greater role in the overall energy density of the discharge chamber than gas streamers. The formation of gas streamers is constrained. Because surface streamers have a higher energy density, the present invention is able to achieve improved energy efficiency while preserving effectiveness for gas treatment.

Abstract: A novel plasma reactor is provided that includes a discharge chamber with dimensional characteristics and configuration of dielectric and electrodes that optimize efficiency based on the characteristics of the corona discharge streamers generated. Upon application of a pulsed high voltage potential, the discharge chamber enables formation of plasma where surface streamers play a greater role in the overall energy density of the discharge chamber than gas streamers. The formation of gas streamers is constrained. Because surface streamers have a higher energy density, the present invention is able to achieve improved energy efficiency while preserving effectiveness for gas treatment.