Abstract:
A reactor chamber forms part of an exhaust system of an internal combustion engine. Within the chamber are electrodes between which there is disposed a bed of active material through which, in use, the exhaust gases pass. In the presence of an electrical discharge, driven by an electrical voltage applied across the electrodes, the active material has a catalytic action in the reduction of nitrogenous oxides in the exhaust and also acts to remove hydrocarbons from the exhaust gases.
Abstract:
A hollow cylindrical tube runs the length of a photoreactor. The tube is positioned below the photoreactor or the photoreactor sits atop the device. The cylindrical tube has a slotted opening on top. The photoreactor fits into the slotted opening and is supported by the slotted opening. There is added reinforcement through the use of support braces on either side of the slotted opening along the cylindrical tube. These L-shaped braces add strength and support to the upright plates sitting in the slotted opening. The braces are aid in the attachment of the cylindrical tubing and the photoreactor plates.
Abstract:
A device and method for controlling the temperature of a plasma chamber inside wall or other surfaces exposed to the plasma by a plurality of temperature control systems. A plasma process within the plasma chamber can be controlled by independently controlling the temperature of segments of the wall or other surfaces.
Abstract:
A multi-function air treatment apparatus includes a photo-ionizing assembly and a negative ion generator. The photo-ionizing assembly emits a predetermined wavelength of light that produces ozone when it impinges upon air. When a portion of the light impinges on a target material, radicals and ions that bond with and reduce some of volatile organic compounds in the air are produced. The negative ion generator produces negative ions and a radiating negative electrostatic field from an outer high dielectric surface by an electrical charge applied to an enclosed conductive inner surface.
Abstract:
The invention concerns a system for treating gases such as PFC or HFC with plasma, comprising: (6) pumping means (6) thereof the outlet is at a pressure substantially equal to atmospheric pressure, means (8), at the pump output, to produce a plasmas at atmospheric pressure.
Abstract:
An air conditioner includes an ion generator that provides ions and safe amounts of ozone. The ion generator includes a high voltage generator that provides a voltage potential difference between first and second electrode arrays. At least one of the first and second arrays is removable from the housing for cleaning.
Abstract:
In one embodiment, a method of treating a gas stream comprises: controlling an amount of the NH3 entering a catalytic unit and converting NO2 and the NH3 to N2 in the catalytic unit, wherein greater than or equal to about 60 wt % of NOx initially in the gas stream is converted to N2. In one embodiment, a gas treatment system comprises: a plasma reactor disposed downstream of an engine; a cracking catalyst disposed downstream of the engine; and a catalytic unit capable of converting NO and HC to NH3, and capable of converting NH3 and NO2 to N2.
Abstract:
Provided is a manufacturing apparatus for a carbon nanotube including: at least two electrodes whose tips are opposed to each other; at least a power supply that applies a voltage between the two electrodes to generate discharge plasma in a discharge area between the two electrodes; and at least a plurality of magnets that generates, in a generation area of the discharge plasma, at least one of a magnetic field of multiple directions and a magnetic field having a component in parallel with a flowing direction of a discharge current, in which a thermal shield wall made of a non-magnetic material is disposed between the magnets and the generation area of the discharge plasma. Accordingly, an influence on the magnetic field due to the heat generated from the discharge plasma can be suppressed, and a high-purity carbon nanotube with excellent industrial efficiency can be stably manufactured.
Abstract:
Provided is a manufacturing apparatus for a carbon nanotube, including: at least two electrodes whose tips are opposed to each other, and a power supply that applies a voltage between the two electrodes to generate discharge plasma in a discharge area between the two electrodes. By using a porous carbonaceous material for at least one of the two electrodes, it is possible to provide a manufacturing apparatus and method for a carbon nanotube, which are capable of manufacturing at a low cost the carbon nanotube that is inexpensive and has a further higher purity.
Abstract:
An air filtration system for use in filtering a pressurized air flow, the system comprising a primary particulate filter for removal of at least a portion of particulate matter entrained in the air flow, at least one ultraviolet lamp, and a permeable reaction filter. The ultraviolet lamp is positioned downstream of the primary particulate filter and the permeable reaction filter is positioned downstream of the ultraviolet light. The permeable reaction filter has a substrate member and a plurality of titanium dioxide particles bonded to portions of the substrate member to form a photo-catalytic oxidizer layer disposed thereon a portion of the substrate member. The ultraviolet lamp irradiates at least a portion of the permeable reaction layer so that at least a portion of contaminants entrained in the air flow. The system may also include an adsorption filter positioned downstream of the permeable reaction filter.