Accentus Plc

United Kingdom Atomic Energy Authority

Aea Technology Inc.

David Raybone

James Timothy Shawcross

Stephen Ivor Hall

Michael Inman

Keith H Bayliss

David Leslie Segal

Fiona Winterbottom

Robert Frew Gillespie

Anthony Robert Martin

Christopher N Griffiths

David Michael Weeks

John Stedman

Suzanne Elizabeth Thomas

Ross Alexander Morgan

A plasma assisted reactor for the removal of carbonaceous combustion products or for simultaneous removal of carbonaceous products and nitrogen oxides from the exhaust emissions from an internal combustion engine, wherein the reactor includes a gas permeable bed made at least primarily of active materials comprising perovskite or vanadate.

Plasma assisted reactor

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.

Treatment of gaseous emissions

A reactor () particularly for the plasma treatment of internal combustion engine exhaust gases, in which a power supply () and a reactor bed () of the dielectric barrier discharge type are connected directly and enclosed in an earthed metal chamber () which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma.

Power supply for processing of gaseous media

A catalytic material for the plasma-assisted treatment of the exhaust gases from internal combustion engines, consisting of an activated alumina, which contains silver or molybdena (MoO). For silver doped alumina, a preferred silver concentration is between 0.1% and 5% by weight. The preparation and use of silver doped alumina material also is described.

Plasma assisted catalytic treatment of gases

In a non-thermal plasma reactor (), at least a component of the active material () is selected or modified to provide the capability to adsorb or trap a predetermined chemical species in the gas flow thereby to increase the effective residence time of said species relative to the residence time of unadsorbed species in the gas flow.

Reactor for plasma treatment of gases

A method and apparatus for removing nitrogen oxides from internal combustion engine exhaust emissions consisting of the operations of contacting the exhaust emissions with a non-thermal plasma () and a silver doped alumina catalyst () and then an indium-doped zeolite catalyst ().

Process and apparatus for removing NOx from engine exhaust gases

A power supply and control system for a motor vehicle incorporating a plasma-assisted reactor for treatment of exhaust emissions and including a power source for supplying first and second output voltages.

Vehicle power supply system

A reactor particularly for the plasma treatment of internal combustion engine exhaust gases, in which a power supply and reactor bed are connected directly and enclosed in an earthed metal chamber which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma.

Gas purification device

A plasma enhanced gas reactor including a reaction chamber having a pair of field-enhancing electrodes each of which has an axial passage through it by one of which a reactant gas is admitted to the reaction chamber, and by the other of which reaction products are removed from the reaction chamber.

Plasma gas processing

An apparatus for detecting the presence of volatile substances in a gaseous medium, including apparatus for producing within a sensor chamber a localised electric field the energy density of which is sufficient to excite the gaseous medium to a plasma condition, and apparatus for detecting changes in a parameter of the plasma due to the presence of the volatile substances in the gaseous medium.

Detection of volatile substances

Gas sterilization

Gas activation

A method of removing particulate and other materials from the exhaust gases from an internal combustion engine in which the exhaust gas is passed through a bed of charged ferro-electric materials. Three forms of apparatus for carrying out the method are described.

Exhaust gas purification

A method of and apparatus for removing organic material from a gas. The method comprises the operation of subjecting the gas to pulses of circularly polarised microwave radiation and the apparatus comprises a reaction chamber through which the gas can be passed, means for generating circularly polarised microwave radiation and means for applying the circularly polarised microwave radiation to the gas in the reaction chamber.

Growing community of inventors

Stow-on-the-Wold, United Kingdom

David Raybone