A system and method for removing dust from exhaust gas of an engine. The system for removing dust from exhaust gas of an engine comprises an exhaust gas dust-removing system inlet, an exhaust gas dust-removing system outlet and an exhaust gas electric field apparatus (1021). The system for removing dust from exhaust gas of an engine has the advantageous effect of dust removal and can effectively remove particulates in exhaust gas of an engine.

A system for removing dust from exhaust gas of an engine, comprising an exhaust gas electric field apparatus and an oxygen replenishment apparatus. The exhaust gas electric field apparatus comprises an exhaust gas electric field apparatus inlet, an exhaust gas electric field apparatus outlet, an exhaust gas dust-removing electric field cathode and an exhaust gas dust-removing electric field anode. The exhaust gas dust-removing electric field cathode and the exhaust gas dust-removing electric field anode are used to generate an ionizing electric field for removing dust from exhaust gas. The oxygen replenishment apparatus is used to add an oxygen-containing gas to the exhaust gas before applying an ionizing electric field for dust removal thereto. The system for removing dust from exhaust gas of an engine has the advantageous effect of dust removal and can effectively remove particulates in exhaust gas of an engine.

The present disclosure relates to methods of scrubbing of gas by exposure to electrons and apparatuses therefor. Such methods and apparatuses could be used to reduce harmful emissions created by the burning of fossil fuels, e.g. to power ships. According to one aspect there is provided apparatus for electron irradiation scrubbing, said apparatus comprising: an anode; a cathode a nanostructure located between said anode and said cathode, said nanostructure being configured to field-emit electrons in response to the presence of an electric field between the anode and cathode when a potential difference is established therebetween; and a housing coupled to said nanostructure and configured for locating the nanostructure so that it extends into a container containing gas to be scrubbed such that an interior of said container can be exposed to said electrons. According to further aspects there are provided systems comprising such apparatus and methods making use of it.

Methods and systems are provided for an exhaust gas treatment device. In one example, the exhaust gas treatment device comprises an electrochemical cell having a first electrode, a second electrode and an electrolyte provided between the first and second electrodes, wherein the electrochemical cell is configured to convert a first pollutant species, such as nitric oxide, within the exhaust gas to a second pollutant species, such as nitrogen dioxide, such that a concentration of the second pollutant species within the exhaust gases leaving the exhaust gas treatment device is increased relative to the exhaust gases entering the exhaust gas treatment device.

Systems and methods for treating automotive vehicle emissions on board an automotive vehicle include the use of waste heat recovery, electrochemical water splitting, phototcatalytic water splitting, and selective catalytic reduction. Waste heat recovery is used to power electrochemical water splitting, or photocatalytic water splitting. Photons collected from a solar panel are used in photocatalytic water splitting, or in photo-assisted selective catalytic reduction. Hydrogen gas generated by water splitting is used in conjunction with catalytic reduction units to catalytically reduce NOx in an engine exhaust gas.

A system includes an aftertreatment system having a catalyst, a heater, at least one sensor configured to determine an exhaust gas temperature, and a controller. The controller is structured to determine whether the exhaust gas temperature is at or below a predefined threshold temperature, provide a first command to start and control the heater in response to the exhaust gas temperature being at or below the predefined threshold temperature, modulate control of the heater as a function of the predefined threshold temperature and an actual temperature, and selectively provide a second command for a close post injection based on the exhaust gas temperature. The controller is further structured to coordinate the first and second commands using a chaining sequence, wherein the first command is provided followed by the second command only if the predefined threshold temperature is not attained by the first command.

A particulate matter measuring device component includes: a base portion formed of ceramics and having a flow channel through which a gas flows; a filter portion formed of porous ceramics and disposed inside the flow channel so as to divide the flow channel into a plurality of divisions; and a pair of electrodes for forming an electrostatic capacitance which is disposed in the base portion so as to sandwich at least a part of the filter portion, the flow channel being located on one end side of the base portion, a retaining portion being disposed on the other end side of the base portion.

An aftertreatment system for treating constituents of an exhaust gas produced by an engine, comprising: a housing; a selective catalytic reduction (SCR) system disposed within the housing; a reductant injector disposed on a sidewall of the housing upstream of the SCR system and configured to insert a reductant into the exhaust gas; and a vortex generator disposed in the housing, the vortex generator comprising at least one deflector disposed on a surface within the housing, the at least one deflector configured to generate vortices in a portion of the exhaust gas flow flowing over the at least one deflector such that the portion of the exhaust gas remains attached to the surface at a downstream location of the surface.

A transfer module for transferring power to a non-thermal plasma generator includes a power cable; a first epoxy; a second epoxy; an interface between the first epoxy and the second epoxy; and a well; the power cable including a conductor for conducting electrical power and an insulation layer for surrounding a portion of the conductor; the first epoxy being located within the well to surround the insulation layer; the second epoxy being located within the well to surround the conductor located within the well; the second epoxy being located outside the well to surround the conductor located outside the well.

An emissions reduction system for a combined cycle power plant having a gas turbine engine and a heat recovery steam generator (HRSG) can comprise a duct defining a flow space configured to receive exhaust gas from the gas turbine and convey the exhaust gas into the HRSG, and a louver system coupled to the duct that can comprise a plurality of emission medium panels extending across the flow space, the emission medium panels configured to be moved between a first position where adjacent filter medium panels extend contiguously across the flow space of the duct and a second position where adjacent filter medium panels include spaces therebetween to provide an unobstructed flow path and an actuator to move the plurality of panels between the first position and the second position.