Abstract: A honeycomb filter includes a honeycomb structure having a porous partition wall disposed to surround a plurality of cells; and a plugging portion provided at one end of the cell, wherein the honeycomb structure has an inflow side region including a range of up to at least 30% with respect to the total length of the honeycomb structure with the inflow end face as the starting point and an outflow side region including a range of up to at least 20% with respect to the total length of the honeycomb structure with the outflow end face as the starting point, in the extending direction of the cell of the honeycomb structure, an average pore diameter of the partition wall in the inflow side region is 9 to 14 ?m and an average pore diameter of the partition wall in the outflow side region is 15 to 20 ?m.

Abstract: A solar system is provided comprising a light receiving surface, a condensation subassembly, a water collection subassembly, and a cleaning subassembly. The expansion chamber of the condensation subassembly is thermally coupled to the light receiving surface and thermally insulated from the ambient such that expansion of compressed air in the expansion chamber, as controlled by the compressed air expansion valve, encourages humidity condensation on the light receiving surface by reducing the temperature of the light receiving surface. The water collection subassembly comprises a water collection vessel and water direction hardware positioned to direct condensed water on the light receiving surface to the water collection vessel. The cleaning subassembly comprises a water dispensing unit positioned to dispense water from the water collection vessel over the light receiving surface of the solar system.

Abstract: The invention relates to an air filter element, particularly for a passenger compartment for the driver's cab of agricultural and work machines, in particular with spraying and atomizing devices for pesticides and fertilizers, having an adsorption filter layer with activated carbon, a fine filter layer in particular for separating aerosols and a circumferential sealing for separating the raw side from the clean side during installation into a filter housing.

Abstract: The invention relates to an air filter element of a passenger compartment for the driver's cab of agricultural and work machines, in particular with spraying and atomizing devices for pesticides and fertilizers, having an adsorption filter layer with activated carbon, a fine filter layer in particular for separating aerosols and a circumferential sealing for separating the raw side from the clean side during installation into a filter housing.

Abstract: A water separator reduces a water content of an air stream, which is used in an HVAC unit for a vehicle. The water separator includes a diverter wall and an adjacent wall spaced from the diverter wall to define an air passage. The diverter wall has a terminal end extending into the air passage for changing a direction of the air stream flowing through the air passage to separate water droplets from the air stream to reduce the water content of the air stream. A gutter is coupled to the terminal end of the diverter wall and extends into the air passage. The gutter defines a drainage channel configured to receive the water droplets that form on the diverter wall for preventing the water droplets from reentering the air stream flowing through the air stream passage.

Abstract: An extraction apparatus includes at least one filter and a grease collection channel, wherein the grease collection channel has a number of removable troughs, which support the at least one filter. The troughs can be arranged flush with one another in a holder Each of the troughs has a handle, which has at least one air through-flow opening.

Abstract: A system for conditioning air flow to a gas turbine includes a filter housing and a conditioning media inside the filter housing to adjust the temperature of the air flowing through the filter housing. At least one of a depth or a density of the conditioning media varies across the filter housing. A method for conditioning air flow to a gas turbine includes flowing air through a filter housing connected to the gas turbine and flowing the air across a conditioning media in the filter housing. The method further includes conditioning the air flow to reduce the temperature difference of the air exiting the filter housing across a dimension of the filter housing.

Abstract: The present invention relates generally to a method for removing contaminants from a fluid stream and chemically upgrading the stream at the same time. More particularly, the invention relates to a catalytic moving bed filter for removing contaminants from a gas or vapor stream and to compositions comprising both moving bed filter materials and one or more catalysts intimately admixed therewith.

Abstract: A gas mask filter canister of varying shapes is filled by orienting the a fill opening to face upwardly, introducing into the fill opening a particulate filter material, and vibrating the filter canister at a frequency and amplitude, and for a time until a predetermined packing density is reached. The invention can be used to fill elliptical or other odd shaped filter canisters having a concave profiles to conform closely to the curvature of the wearer's face.

Abstract: A filter is provided by pleated filter media having a plurality of pleats defined by wall segments extending axially along an axial direction along an axis and extending transversely along a transverse direction between first and second sets of pleat tips at first and second sets of axially extending bend lines. The pleated filter media spans laterally along a lateral span along a lateral direction, with the wall segments being spaced from each other by lateral gaps. The pleats have a pleat depth along the transverse direction along the wall segments between the first and second sets of pleat tips. The pleat depth varies as the pleated filter media spans laterally along the lateral direction.

Abstract: A dust filter has adjustable sub-blades between blades. By adjusting the blades distanced and the sub-blades' positions and angles, stagnation area of filtration material on the blades are removed. Furthermore, space in the dust filter is fully used. Thus, a filtering efficiency is improved.

Abstract: A filter is provided by pleated filter media having a plurality of pleats defined by wall segments extending axially along an axial direction along an axis and extending transversely along a transverse direction between first and second sets of pleat tips at first and second sets of axially extending bend lines. The pleated filter media spans laterally along a lateral span along a lateral direction, with the wall segments being spaced from each other by lateral gaps. The pleats have a pleat depth along the transverse direction along the wall segments between the first and second sets of pleat tips. The pleat depth varies as the pleated filter media spans laterally along the lateral direction.

Abstract: A filter element (1) wound from a plurality of filter layers in which the circumferential contour (5, 5?) of a cross-sectional area (4) of the filter element (1) has at least one circumferential contour section (5?) undercutting the envelope contour (6, 6?) of the cross-sectional filter element area (4).

Abstract: In one embodiment, a removable air filter is mounted proximate to where electrical equipment is mounted in a case. The filter has at least two sections with different finite air impedances. The filter is constructed of a filter media mounted inside of a frame. When the equipment arrangement is modified, the filter can be replaced with another filter with a different impedance profile, such that the air flow remains optimal for many equipment arrangements. The impedance profile can also be tailored to compensate for the characteristic airflow of the case design. Other embodiments are described and claimed.

Abstract: A honeycomb filter 1 of the present invention includes a honeycomb structure 2 having partition walls 7 and plugging portions, and the partition walls 7 are constituted of a porous layer in which a first wall portion 7a having an average pore diameter of 20 ?m or more and carrying an oxidation catalyst 11 on the inner surfaces of formed pores 8, a second wall portion 7b functioning as a buffer and having a high porosity, and a third wall portion 7c having an average pore diameter of 1 to 15 ?m and a porosity of 50 to 90% are laminated in the thickness direction of the partition walls 7 from a surface side where cells 9a having opening end portions opened on an inflow side and opening end portions plugged on an outflow side are defined.

Abstract: Apparatus and methods for removing malodor from the air, particularly from confined spaces are disclosed. Such devices and methods are useful for example for storing and preserving food in closed compartments such as refrigerators. The apparatus and methods utilize baking soda as the odor removing substance, either alone, or in combination with another odor removing substance, which may include activated carbon. In one embodiment, the apparatus has a detachable cartridge member which contains baking soda. In one version of this embodiment, the detachable cartridge member is used with an air moving member that draws air through the detachable cartridge member. In one embodiment, the method involves using a detachable cartridge member with an air moving member in one confined space, and using another cartridge member without the air moving member in another compartment of the confined space.

Abstract: A method and apparatus for filtering gas (58) with a moving granular filter bed (48) involves moving a mass of particulate filter material (48) downwardly through a filter compartment (35); tangentially introducing gas into the compartment (54) to move in a cyclonic path downwardly around the moving filter material (48); diverting the cyclonic path (58) to a vertical path (62) to cause the gas to directly interface with the particulate filter material (48); thence causing the gas to move upwardly through the filter material (48) through a screened partition (24, 32) into a static upper compartment (22) of a filter compartment for exodus (56) of the gas which has passed through the particulate filter material (48).

Abstract: The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be filtered out as it passes through the dust filter. In order to produce a device which separates dust in a highly efficient manner and which can be operated in a highly reliable manner and be used to heat combustion air for the combustion plant, the at least one dust filter is embodied as a bulk material filter in whose bulk material heat from the flue gases can be collected when the bulk material is cross-flown by the flue gases and by means of whose bulk material heat collected from the flue gases when the combustion air of the combustion plant flows through the bulk material filter can be given off to said combustion air.

Abstract: A filter element for an air filter, including a filter insert (2; 8; 10) and a seal (6) extending around the outer edges of the filter insert on the flat side thereof; the filter insert being folded in a zig-zag or pleated form and being composed of filter paper or filter fabric. The filter element (1; 7; 9; 10) rests against parts of a filter housing through the seal (6). The folded filter insert has a contour on one side which deviates extensively from a plane, at least in certain predetermined areas, thus creating a continuous zig-zag fold.

Abstract: The present invention provides a novel group of particles for air filter inspection which solves problems caused by volatilization and scattering of those particles at the downstream side of the air filter in use, enables an air filter inspection with superior stability and reproducibility, and may be produced by using a comparative inexpensive manufacturing device, and manufacturing methods as well as inspection methods of such a group of particles. The group of particles for air filter inspection consists of a plurality of aggregate particles having a particle size of not less than 0.1 &mgr;m, each aggregate particle being constituted by solid primary particles having an average particle size of less than 55 nm.

Abstract: A cyclone type dust collector having a raw air intake aperture, an air separating chamber including a cylinder of upper part and a reversed circular cone of lower part, inner and outer clean air exhaust ducts, the bottom of the air exhaust ducts being closed, the bottom of the reversed circular cone being opened, the exhaust ducts coaxially disposed passing through the air separating chamber, and the surface of the exhaust ducts being provided with many small holes or mesh, small balls or the like being filled between the outer and inner clean air exhaust ducts.

Abstract: An air filter element for internal combustion engines includes a filter media having an inlet portion and an outlet portion positioned adjacent to one another, so that a single filter element may be used with an air filter assembly; the filter element having an inlet and an outlet openings in the same direction. The inlet and outlet portions of the filter element are sealed with a housing by a common peripheral gasket.

Abstract: A system and method for generating power by producing a clean gaseous fuel from a solid fuel, such as coal. A flow of oxygen enriched compressed air is formed by combining compressed ambient air from a gas turbine compressor and a flow of oxygen from a air separation unit. The coal is supplied to a gasifier, along with the flow of oxygen enriched compressed air in which the coal is combusted. The gasifier produces a flow of hot gaseous fuel containing slag and other particulate matter. The slag is removed from the hot gaseous fuel and, after processing, forms the bed media for filter that removes particulate matter from the gaseous fuel. The air separation unit also produces a flow of nitrogen. The nitrogen is mixed into the air prior to filtering so as to cool the air. After cooling and cleaning, the gaseous fuel is combusted in the combustor of a gas turbine, thereby generating shaft power.

Abstract: A biofilter for use in a manhole of a sanitary sewer system which allows sewer gases to escape from the system driven by the pressure differential between the aboveground atmosphere and the underground pressure. Sewer gases are chemically changed by their passage through the compost filter media, and odors associated with the gases are thereby eliminated.

Abstract: An apparatus for processing a particulate material containing an inflammable component, such as ethanol or another solvent, comprises a fluidized bed chamber with a perforated bed plate arranged therein. The particulate material may be fluidized on the bed plate by supplying fluidizing air upwardly through perforations in the bed plate. In order to reduce the risk of explosion in the fluidizing air after its passage through the fluidized bed formed on the bed plate, dilution gas is fed into the fluidized bed chamber. The dilution gas is introduced into the fluidized bed chamber at least at one position spaced from the side walls of the chamber and preferably located centrally within the fluidized bed chamber in order to obtain a substantially uniform mixing of the dilution gas with the fluidizing air including the inflammable component immediately above the fluidized bed. The explosion safe gas mixture may be discharged from the upper part of the processing chamber.

Abstract: Deodorant comprising 5 to 100% by weight of a calcium phosphate compound having a molar ratio of Ca/P of 0.8 to 2.0, a deodorant sheet and filter sheet containing such calcium phosphate compound, and a functional paper containing 10 to 80% by weight of a calcium phosphate compound. A filtering medium for an exhaust gas comprises a ceramic material containing 5 to 100% by weight of a calcium phosphate compound, as well as a filter cartridge and exhaust gas filter containing the filtering medium. Based on the excellent properties of the incorporated calcium phosphate compound, the agents and products according to the present invention exhibit a highly improved adsorptivity to oil-soluble substances, odor substances, animal or vegetable cells, viruses, biopolymeric substances or other substances, and therefore can be advantageously used in various fields of technology. For example, the functional paper can be used as a deodorant, filter medium and adsorbent as well as a flame-retardant paper.

Abstract: A device for separating undesired exhaust gas components from a fluid comprises a reactor with a reaction chamber and having a top and a bottom. The top has a device for introducing a granular adsorption medium. The bottom comprises first and second oppositely slanted sidewalls arranged parallel to one another and forming between them a gutter open in an upward direction. Sections of the gutter form removal funnels with a funnel mouth for removing the granular adsorption medium. The bottom further has fluid inflow openings for admitting the fluid into the reaction chamber, whereby the funnel mouths and the fluid inflow openings are arranged alternatingly in the gutters. The funnel mouths are arranged to form a grid structure. The bottom also has distributing elements for covering the fluid inflow openings. The distributing elements have a pyramid, a cone, a pyramid sector, or a cone sector shape.

Abstract: A moving granular bed dust removal and reaction apparatus using glanular reaction agent as a granular bed material comprises a generally cylindrical, air-tight vessel disposed vertically, which has a gas outlet port, a reaction agent supply port and a reaction agent storage portion in an upper portion thereof, a gas inlet port, a gas chamber connected to the gas inlet port and a reaction agent passage defined in the gas chamber by a louver device in an intermediate portion and a lower portion having a regulatable discharge device. The reaction agent passage of the intermediate portion is communicated with a lower end of the reaction agent storage portion form a single column of reation agent. The regulatable discharge device regulates the moving speed of granular reaction agent supplied through the reaction agent supply port and allows it to move down by gravity to fill the single reaction agent column while filtering and adsorbing dust and toxic substances contained in upwardly moving gas therethrough.

Abstract: The invention relates to a coke filter for cleansing a gas stream, containing a temperature measuring arrangement having a photoconductor which is supplied with pulsed laser light and is passed in a loop through the filter chamber near the outlet openings. In such a coke filter the temperatures prevailing at all critical points are determined in a simple and reliable manner.

Abstract: Void blowing by gas flow through a bed of particulate material is avoided by the use of a cover plate that eliminates void spaces at the top of the bed and a vertical duct that allows a head of particulate material to be maintained above the cover plate. The particle bed is arranged in the usual fashion using inner and outer screens to hold particulate material in a vertically extended bed into which particulate material is intermittently added and withdrawn. The top of the particulate bed is contacted by an imperforate cover plate that is sloped up to an inlet opening that has a smaller cross-sectional area than the area of the bed. The cover plate has a slope which is greater than the angle of the repose of the particles so that particles filling the top section of the bed will be free of void spaces.

Abstract: A filtering device for dust and exhaust gases of glass melting furnaces containing sulfurous compounds wherein the filtering medium is mineral wool which can be passed across the exhaust gas flow by means of a temperature-stable belt that matches the opening for the gas passage.

Abstract: Device for the separation of components, preferably heavy metals, sulfur dioxide, contained in gas and for dust removal in gaseous media charged with solids, especially in cold and hot preparation gases and combustion gases by means of a pourable granular pellet material as filter medium, or for the treatement, preferably drying or for the thermochemical treatment of a pourable granular treatment material by means of a gaseous treatment medium, whereby the pourable material moves from the top to the bottom between a feeding means and a discharge means through a shaft of preferably rectangular cross-section, as moving bed, substantially filling the cross-section thereof, while the gaseous medium is conducted in counterflow thereto between a raw gas inlet and a pure gas outlet.

Abstract: A device for separating coarse and/or fine particles from raw gas, including a filter shell with an inlet and an outlet for bulk material, granular bed filters reaching into the raw gas inlet duct, and purified gas outlets communicating with a common outlet duct.

Abstract: Apparatus for removing contaminants from vapor utilizing a vertical flow passage through an adsorption bed vertically arranged in an upright housing. The adsorption bed may comprise several layers of gas-adsorbing media particularly suitable for removing corrosive gases such as hydrogen sulfide from air to be maintained at a desired contaminant-free level in a controlled environment. A perforated, conical member positioned in the lower end of the housing serves to support the media bed as well as to evenly distribute contaminated air, pressurized by a blower, upwardly through the media bed.A head section carrying a discharge segment having a purified vapor outlet is rotatably mounted on top of the housing. Rotary adjustment of the head section permits the purified air or other vapor to be discharged in a desired direction at a predetermined location.

Abstract: A reactor having a moving layer for the removal of undesirable components for gases has an upright moving-adsorber chamber flanked by jalousie arrays of shutters laterally separating that chamber from a gas inlet chamber and a gas outlet chamber communicating through the jalousies with the adsorbent chamber. The gas inlet and gas outlet chambers, which extend over substantial portions of the height of the adsorbent chamber, are provided with the gas inlet and outlet respectively and are so oriented that the flow of gas through the adsorbent chamber is diagonal across the downward flow of the adsorbent supplied at the top of the adsorbent chamber and removed at the bottom thereof.

Abstract: A scrubber which dries and removes contaminants from a fluid stream (a gas-liquid stream) using as a media, particulate material which can be char obtained from a gasifier, the scrubber system processing the gas and cooling liquid combined with the gas which is obtained by reactions in the gasifier. The media is fed in a continuous stream forming a downward moving column in counterflow relationship with the gas. The gas flows upward thru the particulate media and is dried and cleaned as it contacts the media. The flow relationship is such that the cleanest and dryest media and the cleanest gas contact each other. The column of media continues downward entering a liquid scrubbing section where it is disposed below the level of the liquid. There the contaminated liquid stream, passes through the media in counterflow relationship being cleaned as it contacts the media. Both the gas and liquid components of the stream are scrubbed prior to discharge of the spent media.

Abstract: A contactor/filter arrangement for removing particulate contaminants from a gaseous stream includes a housing having a substantially vertically oriented granular material retention member with upstream and downstream faces, a substantially vertically oriented microporous gas filter element, wherein the retention member and the filter element are spaced apart to provide a zone for the passage of granular material therethrough. The housing further includes a gas inlet means, a gas outlet means, and means for moving a body of granular material through the zone. A gaseous stream containing particulate contaminants passes through the gas inlet means as well as through the upstream face of the granular material retention member, passing through the retention member, the body of granular material, the microporous gas filter element, exiting out of the gas outlet means.

Abstract: The draft forcing fan system in a vapor adsorber is used to extract spent powdered or granular adsorbent from the contacting column by blocking the normal air route intake and discharge ducts. Auxiliary fittings mounted on the intake and discharge ducting facilitate temporary duct connections with a conveniently sized vacuum receiving cannister. In this mode, the fan which forces draft through the adsorption unit operates as a vacuum sweeper. A manually manipulated sweeper wand connected to the vacuum cannister is used to draft the spent adsorbent charge from the contacting chamber into the cannister for removal, regeneration or disposal.

Abstract: Improved methods and apparatus for removing unwanted pollutants from flue gases are disclosed. A sequence of at least three vertical beds of particulates is disposed in the flue gas exhaust duct. A first bed comprises boiler ash or sand. Lime in the fly ash and sulfuric acid and water in the flue gas react with the particulates to form gypsum, removing the fly ash from the flue gas. In the second bed, the remaining sulfuric acid is condensed and removed on a further bed of boiler ash. In the third bed, a catalyst, typically an activated aluminous particulate with an alkali coating thereon, provided by adding ammonia to the flue gas stream, condenses out the remaining sulphur dioxide, which can then be removed from the catalyst particles in a regenerative step. A scrubber embodying these principles is readily retrofittable to pre-existing power plants burning sulphur-containing coal.

Abstract: A gas filter system, suitable for use in a safety installation for nuclear reactor confinement vessels, comprises a generally cylindrical enclosure having a closed bottom. In an upper part of the enclosure is an inlet for the gas to be filtered. There is an outlet for the filtered gas at the side of a lower part of the enclosure. The gas passes at a low speed through a horizontal filter bed of predetermined thickness consisting of a layer of a granular filter medium. The filter medium is supported by a supporting layer of a lightweight granular material which has an average particle size greater than that of the filter medium. This layer extends down to the closed bottom of the enclosure. The filtered gas is recovered and conveyed to the outlet by a plurality of tubular members which have walls through which the gas can pass and which are placed in the supporting layer. These tubular members discharge into an annular manifold on the outside periphery of which is the outlet for the filtered gas.

Abstract: A gas/solids contacting device provides a light-weight, easily installed unit for contacting gases with particulate solids and permits the removal of spent solids and introduction of replacement solids. A solids contacting chamber is maintained between a pair of generally parallel foraminous surfaces which are inclined at an angle greater than the angle of repose of the particulate solids to be confined in the solids-containing chamber. The devices may be connected in parallel or in series and will function with the gas flowing upwardly or downwardly through a bed of particulate solids within the solids-containing chamber. Gas distributor means are provided to promote uniform low velocity gas flow through the solids bed. Retractable or removable support legs may be included.

Abstract: In an apparatus for the treatment of substances in a gas stream, in particular for the absorption and/or adsorption or filtering of gases, a plurality of annular treatment spaces, which are arranged concentric to a vertical axis in each case and are used for receiving a treatment medium and which divide the inner space of a casing of the apparatus into a first and a second chamber, are provided one above the other. Each treatment space has fresh treatment medium supplied to it at an upper opening in each case by way of at least one duct. An evacuation apparatus for removing the treatment medium is provided at the lower outlet opening of each treatment space.

Abstract: For the purification of air or gas streams the air or gas is conducted across a multi-zone adsorption apparatus through which a particulate filter material is moved downwardly by gravity. The gas stream is first admitted to the adsorption apparatus adjacent the downstream end to a first stage having an upstream and a downstream zone and, upon leaving the first stage, is divided into partial streams which are conducted back through an upstream adsorption material stage such that the gas from the most downstream filter material zone of the first stage which still has the highest contaminant content is admitted to and passed through the most upstream filter material zone of an upstream second stage of the apparatus and the upstream zone gas or air from the first stage is admitted to the downstream zone of the first stage in order to provide for high decontamination efficiency and for similar end decontamination of all the gas or air passed through the apparatus.

Abstract: The disclosure describes a method and a system for treating gaseous effluents to remove impurities therefrom, these gaseous effluents flowing out from a high temperature reactor, into which a particulate material is being fed. The method comprises directing the flow of gaseous effluents counter-currently through the particulate material which is fed into the reactor, and independently controlling the particulate material feed rate and the velocity of the gaseous effluents so that particles in the gas feed are substantially all trapped by the particulate feed material and are returned to the high temperature reactor. Volatile materials may also be condensed on the particulate feed material. The purified gaseous effluents are then allowed to exit. A system for carrying out this method is also disclosed.

Abstract: An apparatus for removing acid constituents such as HCl and/or SO.sub.x from the waste-gas generated by furnaces,incinerators and the like wherein the calcium-containing powder material is blown into a waste-gas duct to form a lean fluidized flow until it reaches a vertical moving bed filter having two louvered walls between which granular packings are filled. The process for removing the acid constituents is accomplished by chemisorption which occurs first in the duct and then in the filter bed. A recycled use of the powder is preferred. The filtered waste-gas is further purified by an electrostatic precipitator. The use of a moving bed filter permits the use of a greater amount of calciumaceous powder relative to the acid gases without increasing the electrical load on the electrostatic precipitator.

Abstract: The housing of the stratified bulk material filter contains several vertical bulk material layers which may be traversed transversely by crude gas flow, and are enflanked at both sides by delimitations and which may be supplied with particulate bulk material from above.A periodically occurring flushing-gas counterflow flushing operation is optionally combined with lateral and/or bottom bulk material extraction, whereby an adsorption of noxious gases and/or separation of particles from the crude gas is resolved advantageously by appropriate selection of the possible combination, in a simple structure.

Abstract: A novel catalyst system for use in a distillation column reactor is disclosed including annularly-defined spaces within the reactor comprised of vapor-permeable material with packed catalyst and alternately positioned vapor barrier means.

Abstract: Within its dust gas space, the stratified bulk material filter receives the layers of bulk material which are bordered at either side by delimitations, may be traversed transversely by a flow of flue gas or dust gas, and which are combined in pairs to define a purified gas flow departure space connected to the purified gas side, situated between them. Upon installing the bulk material layer delimitations, the delimitations are first inserted into the dust gas space from the purified gas side at the flow arrival side of the bulk material layers and are immovably suspended therein on bearers of the end sides of each pair of bulk material layers, whereupon gas-permeable delimitations are inserted from the purified gas side to establish the delimitations at the flow departure sides and are suspended by their extremities on the end sides of each pair of bulk material layers, then the spaces between the delimitations at the flow arrival and flow departure sides are charged with bulk material.

Abstract: A system is provided in which particulates and sulfur oxides are simultaneously removed from flue gases in a granular bed filter with special sulfur oxide-capturing and particulate-removing material. The spent sulfur oxide-capturing and particulate-removing material can be regenerated in a lift pipe riser.

Abstract: An apparatus (1) for filtering dust from a gas has a dynamic gas treatment region (54) defined by inflow screen (3) and outflow screen (53). A quantity of filter medium (5) from hopper (13) vertically traverses the gas treatment region (54) as dust-laden gas from gas inlet (14) contacts the filter medium (5) and moves through the gas treatment region (54) horizontally to gas outlet (15). Filter medium (5) which takes dust from the gas that is treated falls to the bottom of the gas treatment region (54). A first filter medium discharge device (8) is installed at the bottom of the gas treatment region (54) at the inflow side; and, a second filter medium discharge device (9) is installed at the outlet side at the bottom of the gas treatment region (54). The first and second discharge devices (8) and (9) are operated at different discharge rates, thus providing distinct inlet filter subregion (4a) and a distinct outlet filter subregion (4b) in the gas treatment region (54).