Abstract: A mixing assembly for an exhaust system can include an outer body, a front plate, a back plate, a middle member, and an inner member. The outer body defines an interior volume and has a center axis. The front plate defines an upstream portion of the interior volume and the back plate defines a downstream portion of the interior volume. The middle member is positioned transverse to the center axis and defines a volume. The inner member is positioned coaxially with the middle member inside the middle member. The front plate includes inlets configured to direct exhaust to (i) a first flow path into an interior of the inner member, (ii) a second flow path into the volume of the middle member between a sidewall of the middle member and a sidewall of the inner member, and (iii) a third flow path into the interior volume of the outer body.

Abstract: A liquid reductant injector nozzle includes a first portion defining a hollow cylindrical static chamber, in fluid communication with second portion defining a hollow frustoconical converging section, which is in turn in fluid communication with a sharp edged type discharge orifice. The hollow cylindrical static chamber is in reductant receiving communication with a reductant source, and has a first and second circular opening having equal diameters. The second circular opening is downstream of the first circular opening. The hollow frustoconical converging section is in reductant receiving communication with the hollow cylindrical static chamber via the second circular opening. Reductant received from the reductant source is discharged through the discharge orifice. A sidewall of the hollow cylindrical static chamber and a frustum side of the frustoconical converging section define an angle of convergence of the liquid reductant injector nozzle relative to a plane of the second circular opening.

Abstract: A particle vapor reactor (PVR) includes a reactor body with a fluid flow conduit having an inlet end and an outlet end, the crossection of the conduit having a circular geometry at the inlet end, a rectangular geometry at its midsection, and a circular geometry at its outlet end. The PVR conduit defines a saturator section and a condenser section. A compact condensation particle counter (CPC) including the reactor is also disclosed. The CPC also includes a sample inlet, a fluid inlet section, a heater section, and a detector section.

Abstract: Various structures for catalytic convertors are disclosed herein. The device includes an outer housing enclosing a catalytic core. The catalytic core can be formed in a myriad of ways. Flow paths through the core are constructed so that they are not straight-line paths from the inlet of the device to the outlet of the device. Pleated conformations and stacked core arrays are described that maximize the catalytic surface area in a given volume of housing. The application of the core to exhaust from diesel engines is also disclosed.

Abstract: An aftertreatment system includes an exhaust conduit and a vane plate. The vane plate is located in the exhaust conduit. The vane plate includes a plurality of first vanes. The vane plate includes a plurality of second vanes that intersects the plurality of first vanes. The plurality of first vanes and the plurality of second vanes form a plurality of channels. The vane plate is configured to redirect flow of exhaust gas through the exhaust conduit to be in an axial direction of the exhaust conduit.

Abstract: Various structures for catalytic convertors are disclosed herein. The device includes an outer housing enclosing a catalytic core. The catalytic core can be formed in a myriad of ways. Flow paths through the core are constructed so that they are not straight-line paths from the inlet of the device to the outlet of the device. Zigzag conformations and stacked panel arrays are described that maximize the catalytic surface area in a given volume of housing.

Abstract: A decomposition reactor for an exhaust system includes an exterior component defining an internal volume and having an inlet and an outlet with the inlet and outlet are formed on a same side of the exterior component. A flow divider is positioned within the internal volume and defines a thermal management chamber and a main flow chamber. A first flow path of exhaust flows from the inlet into the main flow chamber to mix with dosed, and a second flow path of exhaust flows from the inlet into the thermal management chamber to control a temperature of a portion of the flow divider. In some implementations, one or more swirling diverters can be coupled to the flow divider and positioned proximate the outlet of the exterior component to impart a vortical motion to a combined reductant and exhaust gas flow exiting out the outlet.

Abstract: A flow control device for mitigating thermal stratification in a mixing tee pipe includes a mixing bowl provided as an empty sphere; a main pipe having a tubular shape, through which a fluid flows, and coupled to the mixing bowl in linkage with the mixing bowl; a branch pipe having a tubular shape, through which a fluid flows, and coupled to the mixing bowl in linkage with the mixing bowl; and a mixing tee pipe having a tubular shape, through which the fluid in the mixing bowl flows, and coupled to the mixing bowl in linkage with the mixing bowl, wherein a fluid introduced from the main pipe and a fluid introduced from the branch pipe are mixed in the mixing bowl and discharged through the mixing tee pipe.

Abstract: This invention discloses an olefin oxidation process, including a step of under olefin oxidation conditions, successively passing a reaction feed from the No.1 catalyst bed through the No.n catalyst bed, wherein if the apparent velocity of each of the reaction materials passing from the No.1 catalyst bed through the No.n catalyst bed is respectively named as v1 to vn, and if m represents any integer in the region [2, n], the relationship vm-1<vm holds. The process according to this invention is capable of extending the service life of the catalyst, especially the single-pass service life thereof, and at the same time, suppressing any side-reaction over a prolonged period of time. This invention further discloses a fixed-bed reaction apparatus and a system for olefin oxidation.

Abstract: The present invention relates to an apparatus for absorbing and mineralizing carbon dioxide comprising a reactor and a three-phase separator, in which said reactor comprises a tower body and a draft tube disposed inside the tower body, a liquid inlet pipe and a gas intake pipe being disposed on the tower body, the outlet ends of the liquid inlet pipe and the gas intake pipe both being located inside the draft tube; and the three-phase separator is disposed at the upper end of the reactor, and a method therefor.

Abstract: The invention relates to a heat exchanger, in particular for a motor vehicle, including a bundle (3) for a heat exchange between a first and second fluid A, L and a housing (5) inside of which said bundle (3) is housed, said exchanger further including at least one collector (7) attached to said housing (5), said collector (7) being configured to guide said first fluid A between said bundle (3) and an inlet or outlet of said exchanger. According to the invention, said collector (7) is configured to form an abutment (9) for positioning the heat exchanger bundle (3) in the housing (5) for attaching said collector (7) to said housing (5).

Abstract: A system for use in selective catalytic reduction reactor is disclosed. The system may include a catalyst bed and a screen located close to the catalyst bed in a manner so that flow of flue gas to the catalyst bed contacts the screen before it contacts the catalyst bed. The screen may be adapted to support a weight of at least 400 pounds above the catalyst bed so that the weight is not imposed on the catalyst. The screen may have a plurality of holes across its surface in a manner so that the screen is adapted to change the velocity distribution of the flue gas as it flows through the screen.

Abstract: An exhaust gas cooler includes tubes to convey an exhaust gas through the cooler, a header plate to receive ends of the tubes, and a diffuser. The diffuser and the header plate together define an inlet plenum for the exhaust gas. The diffuser includes a connection flange to join the diffuser to the header plate, and the connection flange is substantially shielded from the flow of exhaust gas passing through the inlet plenum.

Abstract: An exhaust gas treatment device, especially for an exhaust system of an internal combustion engine of a vehicle, includes a housing (12) elongated in a direction of a housing longitudinal axis (L). An exhaust gas treatment unit (18) is arranged in the housing (12). At least one first exhaust gas guiding device (24) is in flow connection with an axially open axial end area (16) of the housing (12). The first exhaust gas guiding device (24) provides a first flow path area (38) extending along an outer side (22) of the housing (12) as well as a second flow path area (47) connecting the first flow path area (38) with the axially open axial end area (16) of the housing (12).

Abstract: The invention relates to a method for checking the efficacy of an exhaust gas after-treatment device (9), especially of a catalyst, for an internal combustion engine, exhaust gas generated by a donor internal combustion engine (2) flowing through the exhaust gas after-treatment device (9) to be checked. In order to allow the efficacy of an exhaust gas after-treatment device (9) to be checked with a high degree of flexibility and in a simple manner, a partial quantity is withdrawn from the exhaust gas flow of the donor internal combustion engine (2) and is fed to a defined partial inlet cross-section (22) of the exhaust gas after-treatment device (9) to be checked.

Abstract: A reactor for producing a solid carbon material comprising at least one reaction chamber configured to produce a solid carbon material and water vapor through a reduction reaction between at least one carbon oxide and at least one gaseous reducing material in the presence of at least one catalyst material. Additional reactors, and related methods of producing a solid carbon material, and of forming a reactor for producing a solid carbon material are also described.

Abstract: A chemical heat storage device includes a reaction vessel accommodating a heat storage material, a heat exchange flow path provided so that a heat-exchange fluid flows along an outer surface of the reaction vessel, and the chemical heat storage device being configured in such a manner that the reaction vessel is rotated and the heat storage material is agitated, by a flow force of the heat-exchange fluid.

Abstract: The invention relates to a device for post-treatment of exhaust gases of a lean burning internal combustion engine, in particular a diesel internal combustion engine, with an exhaust gas channel in which downstream of a reducing agent metering device there is a catalytic converter for selective catalytic reduction as an SCR catalytic converter. According to the invention, the exhaust gas channel section which, viewed in the exhaust gas flow direction, extends between the reducing agent metering device and the SCR catalytic converter, is made as a preferably air gap-insulated exhaust gas channel section.

Abstract: A silencer and catalytic converter apparatus includes a housing and a frame assembly arranged in the housing. The frame assembly may receive at least one catalyst panel and support the catalyst panel to occupy an area of a flow passage between upstream and downstream chamber sections of the housing. A blocking panel may be supported by the frame assembly to obstruct a remaining area of the flow passage so that fluid flowing between the upstream and downstream chamber sections is directed to flow through the catalyst panel. The blocking panel may be adjustable to accommodate catalyst panels of different sizes.

Abstract: A heat exchanger that effectively distributes a refrigerant by varying the cross-sectional area of a header and an air conditioner having the same. The heat exchanger includes a plurality of refrigerant tubes disposed spaced apart from each other, a header joined to both ends of each of the refrigerant tubes, at least one baffle to divide the refrigerant tubes into a plurality of mutually adjacent groups and block a longitudinal flow of a refrigerant flowing in the header, each of the groups causing the refrigerant to flow in one direction, and a booster installed to vary a cross-sectional area of the header to uniformly distribute the refrigerant to refrigerant tubes in the same group among the refrigerant tubes. The booster to vary the cross-sectional area of the header may allow a refrigerant flowing through a header to be effectively distributed to the refrigerant tubes.

Abstract: A catalytic converter comprises: a catalyst carrier that purifies exhaust gases from an internal combustion engine; and a catalyst housing tube that houses the catalyst carrier. The catalyst housing tube comprises: an inlet-side conical part that comprises an exhaust-gas inlet, an inner diameter of the inlet-side conical part increasing as a distance from the exhaust-gas inlet increases; a tube part that comprises the catalyst carrier arranged therein; and, an outlet-side conical part that comprises an exhaust-gas outlet, an inner diameter of the outlet-side conical part increasing as a distance from the exhaust-gas outlet increases. A conical inner tube is further provided inside the inlet-side conical part, a diameter of the conical inner tube being smaller than that of the inlet-side conical part, and, the inlet-side conical part and the conical inner tube form a double structure upstream of the catalyst carrier.

Abstract: A system for exhaust gas routing and aftertreatment in a motor vehicle includes a first exhaust gas duct element, which has an inlet opening and an outlet opening, and a second exhaust gas duct element, which has a transfer pipe having a longitudinal axis and having a sleeve surface and a first closed end. An intake opening is provided in the sleeve surface adjacent to the closed end. The transfer pipe projects into the outlet opening and is accommodated in the first exhaust gas duct element by its closed end and the intake opening, so that exhaust gas flowing in through the inlet opening in a first direction can flow through the intake opening and into the transfer pipe and flow—viewed in the direction of the longitudinal axis of the transfer pipe—in the transfer pipe through the outlet opening out of the first exhaust gas duct element.

Abstract: An exhaust treatment device for treating exhaust includes a main body defining an interior, an inlet, and an outlet; an inlet arrangement disposed at the inlet; an aftertreatment substrate disposed between the inlet and the outlet; a restrictor arrangement disposed between a first closed end of the main body interior and the aftertreatment substrate; and a dosing arrangement configured to inject reactant into the exhaust. The restrictor arrangement defines a restricted passageway that extends towards the first closed end so that exhaust entering the main body interior from the inlet is swirled around the restricted passageway before entering the restricted passageway and passing to a second chamber prior to the aftertreatment substrate.

Abstract: The phenomenon of resonance in a catalyst converter due to a flow of an exhaust gas is reduced without causing problems with vehicle layout, problems with manufacturing (higher manufacturing cost), or adverse influences on other facets of performance. An internal combustion engine includes an internal combustion engine main body having a fuel chamber formed in an interior, and a catalyst converter arranged in an exhaust flow channel of the internal combustion engine main body and provided with a catalyst for purifying the exhaust gas. The exhaust flow channel, which is upstream of the catalyst of the catalyst converter, is provided with a protuberance for disturbing the flow of the exhaust gas in the exhaust flow channel to reduce pressure pulsations of the exhaust gas.

Abstract: An exhaust after-treatment system for treating an exhaust produced by an engine, including an exhaust passage in communication with the engine; an injector for dosing an exhaust treatment fluid into the exhaust passage, a mixing device positioned downstream from the injector, the mixing device operable to intermingle the exhaust treatment fluid and the exhaust; an irregularly-shaped exhaust treatment substrate positioned downstream from the mixing device; and a dispersion device positioned between the mixing device and the irregularly-shaped exhaust treatment substrate. The dispersion device includes a plurality of dispersion members each being operable to direct an exhaust stream flowing through the dispersion device into a plurality of different directions to disperse the exhaust flow over substantially an entire surface of the irregularly-shaped exhaust treatment substrate.

Abstract: An exhaust treatment device for treating exhaust includes a main body defining an interior, an inlet, and an outlet; an inlet arrangement disposed at the inlet; an aftertreatment substrate disposed between the inlet and the outlet; a restrictor arrangement disposed between a first closed end of the main body interior and the aftertreatment substrate; and a dosing arrangement configured to inject reactant into the exhaust. The restrictor arrangement defines a restricted passageway that extends towards the first closed end so that exhaust entering the main body interior from the inlet is swirled around the restricted passageway before entering the restricted passageway and passing to a second chamber prior to the aftertreatment substrate.

Abstract: A thermoelectric generator includes a thermoelectric module and a micro heat exchanger. The thermoelectric module includes p- and n-conducting thermoelectric material pieces which are alternately connected to one another via electrically conductive contacts. The thermoelectric module is thermally conductively connected to a micro heat exchanger. The micro heat exchanger includes a plurality of continuous channels having a diameter of at most 1 mm, through which a fluid heat exchanger medium can flow.

Abstract: An exhaust gas purification device capable of enhancing handling operability such as maintenance of an engine includes two gas purification bodies which purify exhaust gas discharged from the engine, inner cases in which the gas purification bodies are incorporated, and outer cases in which the inner cases are incorporated. The outer cases are arranged side by side in a moving direction of exhaust gas and connected to each other. One of the adjoining inner cases is inserted into the other inner case to form a double-layer structure. A loosely-fitting gap is formed between an inner side surface of the one inner case and an outer side surface of the other inner case.

Abstract: The present invention relates to an exhaust gas treatment device (4) and an exhaust system (1) having such an exhaust gas treatment device (4), wherein the exhaust system (1) has at least one exhaust-gas-conducting exhaust gas feed line (2, 3), which is attached to an inlet region (16) of the exhaust gas treatment device (4). Improved mixing of the exhaust gas and a space-saving configuration result if the exhaust gas treatment device (4) has at least one inlet (12, 13) which is open towards the inlet region (16) and if a mixing element (15) is provided, which connects the inlet region (16) to a through-flow region (17) by means of input openings (22, 23), wherein at least one first input opening (22) faces a first side (18) of the inlet region (16) and at least one second input opening (23) faces a second side (19) of the inlet region (16).

Abstract: A wet type flue-gas desulfurization apparatus, into which exhaust gas containing mercury goes, includes an upstream absorption tower, an upstream absorbent spray nozzle and a make-up water supply unit on an upstream side of a desulfurization apparatus body in a flow direction of the gas. The upstream absorption tower has a circulation tank reserving absorbent slurry. The make-up water supply unit supplies make-up water into the circulation tank to keep the chloride ion concentration of the absorbent in the circulation tank not lower than 50,000 ppm. Thus, it is possible to provide a wet type flue-gas desulfurization apparatus by which Hg can be prevented from being released again from the desulfurization apparatus, the purity of recovered gypsum can be increased and the usage of industrial water can be reduced.

Abstract: An emission abatement assembly includes a fuel-fired burner having a combustion chamber and a particulate filter positioned downstream of the fuel-fired burner. A mixing baffle is positioned between the fuel-fired burner and the particulate filter.

Abstract: A method of gasification by introducing a feed material to be subjected to gasification into a dual fluidized bed gasifier comprising a pyrolyzer fluidly connected with a combustor such that a circulation stream comprising a heat transfer material can be continuously circulated between the pyrolyzer, in which the temperature of the circulation stream is reduced, and the combustor, in which the temperature of the circulation stream is increased, wherein the pyrolyzer is operable to convert at least a portion of the feed material into a gasifier product gas comprising hydrogen and carbon monoxide, and wherein the combustor is operable to increase the temperature of the circulation stream via combustion of char introduced thereto with the circulation stream and at least one supplemental fuel. A system for carrying out the method is also provided.

Abstract: A diesel exhaust gas purification catalyst contains a substrate, and a catalyst layer formed on the substrate. The catalyst layer contains a carrier, a noble metal and/or an oxide thereof supported by the carrier, and a composite oxide of cerium and one or more Group III and/or Group IV elements. The diesel exhaust gas purification catalyst when in use is disposed on an upstream side of an exhaust gas stream with respect to a denitration catalyst.

Abstract: An air quality control system (AQCS) 14 useful for treating flue gas FG, such as flue gas FG produced by a fossil fuel fired boiler 12 is described. The AQCS 14 is equipped with a dry scrubber low load distributor device 66. With the low load distributor device 66, flue gas FG flow through a dry scrubber reactor 36 is stabilized under varying plant 10 load conditions to maintain AQCS 14 stability, efficiency and effectiveness.

Abstract: An air quality control system (AQCS) 14 useful for treating flue gas FG, such as flue gas FG produced by a fossil fuel fired boiler 12 is described. The AQCS 14 is equipped with a dry scrubber low load distributor device 66. With the low load distributor device 66, flue gas FG flow through a dry scrubber reactor 36 is stabilized under varying plant 10 load conditions to maintain AQCS 14 stability, efficiency and effectiveness.

Abstract: An exhaust treatment device includes an inner shell, an outer shell and insulation material positioned between the inner shell and the outer shell. An inlet tube has an end in communication with a cavity defined by the inner shell. A substrate for treating engine exhaust is positioned within the inner shell. A baffle plate includes a plurality of apertures positioned such that the exhaust passes through the apertures prior to entering the substrate. The baffle plate supports an end of the inner shell and the inlet tube.

Abstract: A mixing element positioned at an exhaust outlet of a Selective Catalytic Reduction (SCR) module is provided. The mixing element includes a base plate having an upper surface and a lower surface. The base plate is configured to deflect a portion of a flow of a fluid around the upper surface thereof. The mixing element also includes a plurality of vanes attached to the lower surface of the base plate in a spaced apart arrangement. The plurality of vanes is configured to induce a swirling effect in a flow of the fluid received therebetween.

Abstract: A system includes a selective catalytic reactor and a bypass line. The selective catalytic reactor is located downstream of a furnace that generates flue gases. The selective catalytic reactor reduces nitrogen oxides to nitrogen. The bypass line is in fluid communication with the selective catalytic reactor. The bypass line contacts an input line to the selective catalytic reactor, where the bypass line is adapted to handle a volume of flue gases diverted from the selective catalytic reactor. A first control damper is disposed at an inlet to the selective catalytic reactor; and a second control damper is disposed at an inlet to the bypass line. The first control damper and the second control damper interact to divide the flue gas stream between the selective catalytic reactor and the bypass line in a ratio to reduce the amount of sulfur trioxide released from the system to a desirable value.

Abstract: An exhaust treatment component including a mixing assembly located within a housing. The mixing assembly includes a decomposition tube having a first end and a second end, the first end being configured to receive the exhaust from the inlet and being configured to receive a reagent exhaust treatment fluid; a flow reversing device disposed proximate the second end, the flow reversing device configured to direct a mixture of the exhaust and reagent exhaust treatment fluid as the mixture exits the second end of the decomposition tube in a direction back toward the first end, the flow reversing device including a plurality of deflecting members for swirling and intermixing the exhaust and reagent exhaust treatment fluid; and a swirl arrester device configured to eliminate the swirling of the exhaust and reagent exhaust treatment fluid after exiting the flow reversing device.

Abstract: A reducing agent aqueous solution mixing device includes an exhaust pipe, an injector, an inner pipe and a tubular guide member. The exhaust pipe includes an elbow part having a curved portion, and a linear part disposed downstream of the elbow part. The injector is disposed outside of the curved portion, and injects a reducing agent aqueous solution into the elbow part towards the linear part. The inner pipe is disposed downstream of the injector within the exhaust pipe. The inner pipe has an inlet portion opening facing the injector and an outer peripheral surface spaced apart from the inner wall of the linear part. The inner pipe allows the exhaust gas to flow through the inside of the inner pipe and along the outer periphery of the inner pipe. The tubular guide member directs the reducing agent aqueous solution injected from the injector to the inner pipe.

Abstract: A reducing agent aqueous solution mixing device includes an exhaust pipe, an injector, a mixing pipe and an inner pipe. The exhaust pipe includes an elbow part having a curved portion, and a linear part disposed downstream of the elbow part. The injector is disposed outside the curved portion and injects the reducing agent aqueous solution towards the linear part. The mixing pipe is disposed inside the elbow part to surround the reducing agent aqueous solution injected from the injector. The mixing pipe includes a plurality of openings on its outer peripheral surface. The inner pipe is disposed downstream of the mixing pipe and spaced apart from an outlet portion of the mixing pipe and from an inner wall of the linear part to allow the exhaust gas to flow through the inside of the inner pipe and along the outer periphery of the inner pipe.

Abstract: A reducing agent aqueous solution mixing device includes an exhaust pipe, an injector, a mixing pipe, an inner pipe and a flow section. The exhaust pipe includes an elbow part and a linear part. The injector is disposed in the elbow part and injects a reducing agent aqueous solution. The mixing pipe receives the reducing agent aqueous solution injected from the injector, and includes an outlet portion formed spaced apart from an inner wall of the exhaust pipe, and a plurality of openings formed on the outer peripheral surface thereof. The inner pipe is disposed in the linear part and allows the exhaust gas to flow through the inside and the outer periphery thereof. The flow section is formed between the outlet portion of the mixing pipe and the inner wall of the exhaust pipe to direct the exhaust gas to the inner pipe.

Abstract: A distributor for a circulating dry scrubber reactor includes a venturi section with a venturi section wall extending from a venturi section inlet to a venturi section outlet along a longitudinal axis, with the venturi section inlet connected to an inlet plenum and the venturi section outlet connected to a circulating dry scrubber reactor. A hub is mounted within the venturi section wall with an annular converging-diverging flow path defined between the venturi section wall and the hub for distribution of gas flow from the venturi section outlet into a circulating dry scrubber reactor space and for maintaining stable bed fluidization in a CDS system at a comparatively low system pressure loss.

Abstract: A catalytic combustor (2) in a gas turbine engine (GT) includes a casing (54) for accommodating a catalyst carrier (10) therein, a catalyst retaining body (62) interposed between the casing (54) and the catalyst carrier (10) for retaining an outer peripheral surface of the catalyst carrier (10) to an inner peripheral surface of the casing (54) and also for preventing a gas (G2) from leaking in a downstream direction through an outer periphery of the catalyst carrier (10), a support material (64) disposed on a downstream side of the direction of flow of the gas to be treated in the catalyst carrier (10) for holding the catalyst carrier (10), and a downstream side regulating member (72) disposed on the downstream side of the catalyst retaining body (62) for avoiding a movement of the catalyst retaining body (62) in a direction of flow of the gas (G2).

Abstract: An exhaust system is provided. The exhaust system includes an exhaust conduit having a protuberance thereon. A reductant injector is provided on the protuberance. The reductant injector is positioned such that an ejection tip of the reductant injector is inclined with respect to a centerline of the exhaust conduit. A baffle assembly is coupled to an inner wall of the exhaust conduit. The baffle assembly is positioned upstream of the ejection tip of the reductant injector. A first plate of the baffle assembly is positioned parallel to the centerline of the exhaust conduit. A second plate of the baffle assembly extends from the first plate. The second plate is positioned angularly with respect to the first plate. The baffle assembly is configured to deflect at least a portion of an exhaust gas flow over the ejection tip of the reductant injector.

Abstract: An air pollution control apparatus includes at least one denitration catalyst layer for reducing the amounts of nitrogen oxides in flue gas from a boiler and oxidizing mercury with hydrogen chloride sprayed into the flue gas. Spraying pipe headers 51 are disposed in a flue gas duct 19. The spraying pipe headers 51 are inserted into the flue gas duct 19 and arranged in a direction orthogonal to the direction of a gas flow in the flue gas duct 19. At least four spray nozzles 52-1 to 52-4 are disposed at intervals on the spraying pipe header 51 to form a vertical vortex flow 53 in the gas flow direction. A swirling diffuser plate is disposed on an opening side of the spray nozzles to form the vertical vortex flow in the gas flow direction, wherein the swirling diffuser plate has a flat shape at one side parallel to the spraying pipe header and a wavy shape corresponding to the nozzle intervals on the header at the other side. The diffusion of hydrogen chloride is thereby facilitated in a rapid manner.

Abstract: Methods and apparatus for protecting an inner wall of a foreline of a substrate processing system are provided herein. In some embodiments, an apparatus for treating an exhaust gas in a foreline of a substrate processing system includes a gas sleeve generator including a gas sleeve generator comprising a body having a central opening disposed through the body; a plenum disposed within the body and surrounding the central opening; an inlet coupled to the plenum; and an annulus coupled at a first end to the plenum and forming an annular outlet at a second end opposite the first end, wherein the annular outlet is concentric with and open to the central opening. The gas sleeve generator may be disposed upstream of a foreline plasma abatement system to provide a sleeve of a gas to a foreline of a substrate processing system.

Abstract: An exhaust treatment device includes an inner shell, an outer shell and insulation material positioned between the inner shell and the outer shell. An inlet tube has an end in communication with a cavity defined by the inner shell. A substrate for treating engine exhaust is positioned within the inner shell. A baffle plate includes a plurality of apertures positioned such that the exhaust passes through the apertures prior to entering the substrate. The baffle plate supports an end of the inner shell and the inlet tube.

Abstract: An exhaust gas denitrizer removes nitrogen oxides from rejoined exhaust gas using a denitrification reactor after supplying ammonia gas to the rejoined exhaust gas made up of main exhaust gas cooled by a fuel economizer by flowing through a main duct and bypass exhaust gas maintained at high temperature by flowing through a bypass duct adapted to bypass the fuel economizer. At a meeting place between the main exhaust gas and bypass exhaust gas in the main duct, three partition plates are installed with plate surfaces turned to an inflow direction of the bypass exhaust gas, partitioning a main exhaust gas channel into a plurality of sub-channels. Upstream-side ends of the partition plates face the incoming bypass exhaust gas by being shifted from one another toward an upstream side of the main exhaust gas starting from an inflow side of the bypass exhaust gas.

Abstract: An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. The conduit includes an aperture. An injector injects a reagent through the aperture and into the exhaust stream. A flow modifier is positioned within the exhaust conduit upstream of the injector. The flow modifier includes a diverter for increasing the velocity of the exhaust gas at a predetermined location within the conduit relative to the injected reagent.