A system for exhaust gas remediation includes an engine, a plasma reactor, and a pulse source. The engine emits exhaust gas that includes NO molecules and NOx molecules. The plasma reactor includes an internal chamber that is fluidly connected to the engine such that the exhaust gas flows into the internal chamber. An electrode is disposed within the internal chamber of the plasma reactor. The electrode is electrically coupled to an electrical pulse source. The electrical pulse source delivers electrical pulse to the electrode to form a plasma from the exhaust gas, which removes at least a portion of the NO molecules and at least a portion of the NOx molecules.

A nitric oxide generator generates nitric oxide from a mixture of nitrogen and oxygen such as air treated by a pulsating electrical discharge. The desired concentration of nitric oxide is obtained by controlling at least one of a frequency of the pulsating electrical discharge and duration of each electrical discharge pulse.

In a first processing chamber, a feedstock may be combined with plasma from, for example, three plasma torches to form a first fluid mixture. Each torch may have a working gas including water vapor, oxygen, and carbon dioxide. The first fluid mixture may be cooled and may contact a first heat exchange device. The output fluid from the first heat exchange device may be separated into one or more components. A syngas may be derived from the one or more components and have a ratio of carbon monoxide to hydrogen of about 1:2. The syngas may be transferred to a catalyst bed to be converted into one or more fluid fuels.

The present disclosure provides a liquid treatment device, a liquid treatment method, and a plasma treatment liquid each capable of efficiently generating plasma and treating a liquid in a short time period. A liquid treatment device according to the present disclosure includes a first electrode, a second electrode disposed in a liquid to be treated, an insulator disposed around the first electrode with a space between the first electrode and the insulator, the insulator has an opening portion in a position in contact with the liquid to be treated, a power supply that applies voltage between the first electrode and the second electrode, and a supply device supplying a liquid to the space before the power source applies the voltage.

A system for exhaust gas remediation includes an engine, a plasma reactor, and a pulse source. The engine emits exhaust gas that includes NO molecules and NO.sub.x molecules. The plasma reactor includes an internal chamber that is fluidly connected to the engine such that the exhaust gas flows into the internal chamber. An electrode is disposed within the internal chamber of the plasma reactor. The electrode is electrically coupled to an electrical pulse source. The electrical pulse source delivers electrical pulse to the electrode to form a plasma from the exhaust gas, which removes at least a portion of the NO molecules and at least a portion of the NO.sub.x molecules.

An electrical coupler for a resistively heated reactor system including an electrical conductor having a first end and a second end, defining a thickness therebetween, each of the first end and the second end having a first interface in the first end and a second interface in the second end and, at least one opening extending from the first end to the second end, the at least one opening configured to allow a fluid to flow through the electrical coupler.

A device and a process to propagate molecular growth of hydrocarbons, either straight or branched chain structures, that naturally occur in the gas phase of a first gas to gas phase molecules of a second gas having higher molecular chain lengths than the hydrocarbons of the first gas. According to one embodiment, the device includes a grounded reactor vessel having a gas inlet, a product outlet, and an electrode within the vessel; a power supply coupled to the electrode for creating an electrostatic field within the vessel for converting the first gas to a second gas.

An electrical coupler for a resistively heated reactor system including an electrical conductor having a first end and a second end, defining a thickness therebetween, each of the first end and the second end having a first interface in the first end and a second interface in the second end and, at least one opening extending from the first end to the second end, the at least one opening configured to allow a fluid to flow through the electrical coupler.

The present disclosure relates to a plasma reactor for plasma-based gas conversion comprising a pin electrode extending along a longitudinal axis from a first end to a second end, an opposing electrode opposing a discharge tip of the 10 pin electrode, a plasma chamber for confining a glow discharge plasma, and an electrically-insulating body that comprises an inner bore extending along the longitudinal axis from a bore entrance to a bore exit. The second end of the pin electrode comprises a discharge tip. The pin electrode penetrates the inner bore from the bore entrance and extends at least partly through the inner bore and a15 radial wall of a portion of the inner bore located between the second end of the pin electrode and the opposing electrode, is radially delimiting the plasma chamber. The plasma reactor is further configured for varying an electrode separation distance between the discharge tip of the pin electrode and the opposing electrode.

The present invention relates to a dielectric barrier discharge (DBD) plasma reactor for the preparation of C.sub.2+ hydrocarbons from methane, wherein the DBD plasma reactor comprises macroporous silica, as a dielectric material, and optionally a photocatalyst that is impregnated into the pores of the macroporous silica.