Abstract: The invention relates to a reactor for purifying a gas flow by contact with a liquid. The reactor comprises a chamber which delimits a channel having an inlet opening and an outlet opening for the gas flow. The chamber has walls made of a flexible material which is secured to an inflatable structure which is provided with means for retaining pressurised air therein in order to form a self-supporting flexible structure with trapped air.

Abstract: A fluid type, gel/wax/paraffin type, or mechanical type harmonic balancer for built-in or retrofit use with an atomizer of a SDA flue gas desulfurization system for reduced atomizer vibration within or outside of the atomizer's harmonic range is provided herein. Also provided, is a method of using the built-in or retrofit harmonic balancer with an atomizer of a SDA flue gas desulfurization system to decrease atomizer vibration within or outside the atomizer's harmonic range, to increase atomizer on-line service hours, decrease atomizer maintenance requirements, and to decrease atomizer associated costs.

Abstract: An atomizer system 160 for use in a spray dry absorber 130, the atomizer system 160 includes a support member 161, an atomizing disc 162 rotatably coupled to the support member 161, a first feed line 163 for delivery of a reagent slurry 163a to a delivery area 165 and a second feed line 164 for delivery of a dilution liquid 164a to the delivery area 165. The delivery area 165 is positioned within the atomizer system 160 to reduce scale buildup generated by interaction of the reagent slurry 163a and the dilution liquid 164a.

Abstract: A radial-flow scrubber (1, 100) for separating dust and pollutants from gases, comprises a housing (2), a raw gas inlet (3), a feeder (4) for a washing liquid, a washing zone (5), a clean gas outlet (10), and an outlet (11) for the washing liquid. The washing zone (5, 101) comprises an inlet funnel (7, 105), a scrubbing zone (18) having an adjustable flow cross-section, and a drive (10, 110) for adjusting the cross section of the scrubbing zone (18), as well as a tubular shell (8,108) detachably mounted to the housing (2), wherein in a ceiling of the housing (2) an opening is provided through which the complete washing zone (5, 101) can be integrally withdrawn.

Abstract: A mist/dust collector includes a tank body, a recovery tank having a demister member, a spraying unit spraying water or coolant fluid from a nozzle, an impeller mounted on a main shaft located in the tank body, so as to be rotatable by air flow, a disc rotary brush and a shaking-off member mounted on the shaft. A suction unit is actuated to draw air containing mist and dust into the tank body interior maintained in a negative pressure state. The impeller is rotated by collision of water or coolant fluid at a predetermined pressure, and the rotary brush and the shaking-off member are rotated simultaneously with the impeller, so that mist and dust are separated from air by a centrifugal action of the rotary brush and the shaking-off member. Mist and dust remaining in the air flowing into the recovery tank are collected by the demister member.

Abstract: The present invention is to provide an air cleaning method and device that realize sufficient purification of polluted air, high-efficiency removal of germs or the like from polluted air, and has a relatively simplified structure.

Abstract: A dust arrester includes a housing with air inlet and air outlet, wherein the ambient air containing dust particles can be introduced into the housing via the air inlet and discharged from the housing via the air outlet. The dust arrester further includes a water trough placed in the bottom of the housing and a chaos effect generator including a nozzle and a material. The nozzle can spray water supplied from the water trough. The water sprayed interacts with the material to generate a chaos condition, so that the dust particles can be removed from the introduced air under the chaos condition.

Abstract: A system, method and apparatus for treating a waste gas stream containing on or more hydrocarbon contaminants such polycyclic aromatic hydrocarbons (PAH). The system, method and apparatus may include a heat treatment chamber having a recycling apparatus that includes a supply of a food oil solvent; a mixing device to mix the solvent with the waste gas stream. The system, method and apparatus dissolve the hydrocarbon contaminants from the gas stream into a solvent containing the food oil.

Abstract: Vortex gas separation is forced in radial counterflow between counter-rotating coaxial centrifugal impellers. Feed is at the axis of rotation. Axial extraction of nitrogen and water vapor is driven by an axial pump and by back pressure from the tank while radially outward flow of carbon dioxide and scrubbing targets is driven by the impellers. Scrubbing of the concentrated targets is in high turbulence during a long residence time. Tiny centrifugation effects of innumerable turbulent eddy vortices in a shear layer between the impellers and in the tank are integrated by the forcing regime of the impellers and the axial pump. Radial vortices caused by shear between the counter-rotating impellers provide coherent sink flow conduits for axial extraction of nitrogen ballast. Fine fly ash (PM-2.5) scrubbing is concurrent with NOx and SOx scrubbing and with carbon capture.

Abstract: The present invention is directed to methods for carbon dioxide from air, which comprises exposing solvent covered surfaces to air streams where the airflow is kept laminar, or close to the laminar regime. The invention also provides for an apparatus, which is a laminar scrubber, comprising solvent covered surfaces situated such that they can be exposed to air streams such that the airflow is kept laminar.

Abstract: Fan blades within a fan assembly are rotated in a first rotational direction, thereby generating airflow from above the fan blades downward past the fan blades. Airborne particles adhere to the surface of the fan blades as the air flows past. The fan direction is then reversed maintained at a relatively low rotational rate. A fluid is dispensed onto the hub of the fan blades. Due to the centripetal force of the spinning fan blades, the fluid is spread thin across the top surface of the fan blades and the liquid film washes the blade of the fan, removing particulates from the fan blade. The solution is pushed outward against the inner wall of the fan housing forming a fluid meniscus. The fan speed is increased to push the fluid meniscus into an annular reservoir. The collected fluid is then vacuumed and consolidated into the collection vessel.

Abstract: A scrubber removes dust from an exhaust gas. The scrubber includes a casing having an exhaust gas inlet and an exhaust gas outlet, an impeller housed in the casing and supported by a shaft, and a cleaning liquid supply tube for ejecting a cleaning liquid by which the dust contained in the exhaust gas is captured. The scrubber further includes a plurality of protrusions provided around the impeller such that the exhaust gas and the cleaning liquid which are discharged from the impeller impinge upon the protrusions.

Abstract: A filter device for purifying air includes a filtering tank and a mixing rotor. The a filtering tank has a filter chamber for containing a predetermined volume of filtering solution to filter particles of the air and defining an upper air portion and a lower solution portion, an air inlet formed at the air portion for guiding the air to flow into the filter chamber and an air outlet. The mixing rotor is rotatably supported in the filtering tank, wherein the mixing rotor includes a rotor hub driven to be rotated within the filter chamber, and a plurality of air paddles radially extended from the rotor hub for striking towards the filtering solution at the solution portion of the filter chamber from the at the air portion thereof so as to substantially mix the air from the air inlet with the filtering solution.

Abstract: A wet type air cleaner includes a purification unit installed in a housing. The purification unit includes a blower unit for directing air to cleaning water in the bottom of the housing, an inner guide for drawing up the cleaning water in the bottom of the housing, and a nozzle portion for radially dispersing the cleaning water drawn up by the inner guide. The air directed by the blower unit flows through the dispersed cleaning water. An outer guide is disposed for guiding the directed air and the dispersed cleaning water into the cleaning water in the bottom of the housing. The blower unit, the inner guide and the outer guide are together rotated by a driving unit. The inner guide has a central portion and a spiral guide portion disposed on an outer surface of the central portion.

Abstract: A wet type air cleaner includes a housing accommodating therein water; a blower having a fan for downwardly transferring air, installed above the water in the housing; an outer guide portion for transferring the air downwardly transferred by the blower into the water, connected to the blower as a unit; a driving unit for rotating the blower and the outer guide portion as a unit; and a plurality of discharge holes formed on a circumferential bottom surface of the outer guide portion. The air downwardly transferred by the blower is dispersed into the water in the housing through the discharge holes.

Abstract: A wet type air cleaner includes a housing storing cleaning water in a bottom portion thereof; and a purification unit installed in the housing. The purification unit includes: a blower unit for directing air to the cleaning water in the bottom of the housing; an inner guide for drawing up and dispersing radially the cleaning water in the bottom of the housing, the air directed by the blower unit flowing through the dispersed cleaning water; and an outer guide for guiding the directed air and the dispersed cleaning water into the cleaning water in the bottom of the housing, the outer guide surrounding the inner guide to form a gap therebetween, wherein the blower unit, the inner guide and the outer guide are together rotated by a driving unit.

Abstract: An integrated environmental control system for cabin air of an aircraft or spacecraft. Humidity and temperature of cabin air are controlled with a direct contact liquid air contaminant control system that revitalizes cabin air by removal of carbon dioxide and other trace gas contaminants through use of a direct contact air, liquid scrubber element and stripper element. The scrubber element has two rotor elements rotatably mounted in a housing first for centrifugal separation of an air flow and liquid absorbent mixture which liquid absorbent has absorbed carbon dioxide and trace gas contaminants. Then second for centrifugal separation of an air flow and acid water wash mixture which acid water wash has liquid absorbent and other contaminants. The processed air is then passed through a charcoal bed filter for further removal of contaminants. A rotary contact processor may also be used to reprocess contaminated liquid absorbent for reuse.

Abstract: Fan blades within a fan assembly are rotated in a first rotational direction, thereby generating airflow from above the fan blades downward past the fan blades. Airborne particles adhere to the surface of the fan blades as the air flows past. The fan direction is then reversed maintained at a relatively low rotational rate. A fluid is dispensed onto the hub of the fan blades. Due to the centripetal force of the spinning fan blades, the fluid is spread thin across the top surface of the fan blades and the liquid film washes the blade of the fan, removing particulates from the fan blade. The solution is pushed outward against the inner wall of the fan housing forming a fluid meniscus. The fan speed is increased to push the fluid meniscus into an annular reservoir. The collected fluid is then vacuumed and consolidated into the collection vessel.

Abstract: The direct contact liquid air contaminant control system and method to revitalize air by removal of carbon dioxide and other trace gas contaminants use a direct contact air, liquid scrubber element and stripper element. The scrubber element has two rotor elements rotatably mounted in a housing first for centrifugal separation of an air flow and liquid absorbent mixture which liquid absorbent has absorbed carbon dioxide and trace gas contaminants. Then second for centrifugal separation of an air flow and acid water wash mixture which acid water wash has liquid absorbent and other contaminants. The processed air is then passed through a charcoal bed filter for further removal of contaminants. A rotary contact processor may also be used to reprocess contaminated liquid absorbent for reuse.

Abstract: An air filtration and aromatizer apparatus which includes a housing, a motor in the housing with a fan for drawing air through an inlet toward an outlet through a pollution-collecting chamber, and an elongated hollow tubular perforated member having an upper end connected to the motor output shaft and a lower end disposed in a bath of water. The hollow tubular member is formed in such a manner that as it is rotated by the motor, it draws water from the container under the influence of centrifugal force, and then forces the water through the perforations to form a mist or rain-like atmosphere in the path of motion of the air passing from the housing inlet toward the housing outlet.

Abstract: An emission control device and a method of operation thereof removes particulates from air. The air is directed into the device after finely divided mist has been added to the air. The air is abruptly forced to change directions within the device and the added moisture is removed along with the particulates. A fan with inner vanes and outer blades is located within the device to direct the flow of air and to remove the moisture and particulates.

Abstract: An apparatus for rectification liquids and/or for scrubbing of gases has an elongated, horizontally extending, cylindrical process chamber or housing. A liquid and a gaseous phase are passed counter-currently through the apparatus. The liquid is thrown outwardly towards the peripheral housing wall by a rotor extending along the bottom of the housing. Liquid flowing downwards along the peripheral housing wall is collected in an upwardly open channel and the liquid collected therein may be supplied to the rotor via an adjustable slot or opening. Transversely extending, axially spaced guide plates are arranged within the housing so as to define a tortuous path for the gas phase flowing through the housing.

Abstract: A device for treatment of a gas stream includes one or more entities (3) having functional elements (10, 20, 110, 200, 230, 310, 320, 330, 400) that are attached to, and able to rotate with, a hollow axle (4). The device also includes one or more pipes (5) mounted axially inside the hollow axle for transportation of necessary auxiliary fluids to effect the gas treatment.

Abstract: A system and method of cleaning a gas of undesired particulate, aromas, and gases of the type utilizing a centrifuge with various combinations and apparatus used to liquid wet a gas stream is provided. The gas scrubber of the present invention includes a container for containing a liquid having a surface forming a space between said surface and the container top; a motor having a rotatable vertically mounted shaft mounted above said top with said shaft connected to and rotatable with a centrifuge cylinder having an inlet positioned outside of said container and having an outlet positioned in said space. Said cylinder contains fan blades to draw gas from said cylinder inlet and out said cylinder outlet. A vertically mounted rotatable siphon pipe, connected to said shaft, that has an inlet positioned below said surface and an outlet positioned proximate said centrifuge inlet to draw liquid up and out to the centrifuge inlet and flow down the centrifuge wall to clean the wall and mix with said gas.

Abstract: An emission control device and a method of operation thereof removes particulates from air. The air is directed into the device after finely divided mist has been added to the air. The air is abruptly forced to change directions within the device and the added moisture is removed along with the particulates. A fan with inner vanes and outer blades is located within the device to direct the flow of air and to remove the moisture and particulates.

Abstract: A waste gas treatment system has a primary cooling section provided at a stage subsequent to a decomposition treatment section in which a waste gas is subjected to decomposition treatment at high temperature. The primary cooling section has a liquid spray part for spraying a liquid on the treated gas from the decomposition treatment section. A secondary cooling section cools the treated gas sprayed with the liquid in the primary cooling section to reduce the volume of the treated gas. Further, a particle collecting section injects a liquid into the treated gas cooled in the secondary cooling section to collect fine particles contained in the treated gas.

Abstract: The present invention relates to a device for treatment of an exhaust gas or a flue gas stream. The device comprises one or more entities (3) embracing frictional elements (10, 20, 110, 230, 310, 330, 400) attached to, and which are able to rotate with, a hollow axle (4) and one or more pipes (5) running axially inside the hollow axle for transporting of necessary auxiliary fluids to effect the gas treatment. Furthermore, the invention relates to a method for treatment of an exhaust gas or a flue gas stream flowing through an exhaust gas duct or flue gas duct. The method comprises that the gas stream is conducted through one or more entities embracing functional elements attached to, and rotating with, a hollow, rotating axle and where necessary auxiliary fluids effecting the gas treatment enter and leave the functional element in each entity through pipes running axially inside the axle. The invention is particularly applicable for energy recovery and/or removal of CO2 from exhaust or flue gas.

Abstract: The present invention is a system 100 for removing particulate matter and aerosols from a gas stream generated by gasification prior to the gas stream being used as fuel in an internal combustion device or as synthesis gas for subsequent processing. The present invention consists of removing excess ash by passing the gas stream through a high temperature cyclone separator 102, cooling the gas stream, oil scrubbing the gas to further cool it and to remove particulates and some tars, passing the gas stream through one or more vortex chambers 28 to remove additional tars, passing the gas stream through a heat exchanger 104 to cool the gas, and finally passing the gas stream through a demister 106 to remove aerosols from the gas.

Abstract: Methods and apparatus for purifying contaminated air using mixed liquid are disclosed. The invention includes an air inlet structure for taking in contaminated air, an air purifying compartment connected to the air inlet structure at one end for purifying contaminated air, and an air outlet structure connected to the air purifying compartment at another end for discharging purified air to the outside. The invention uses mixed liquid in its air purifying method. The invention includes a method that uses centrifugal force to form a mixed liquid filter, a method that takes in contaminated air, a method that purifies the contaminated air, and a method that discharges purified air to the outside. The invention can achieve a high degree of economic efficiency and a high degree of purification efficiency.

Abstract: A vacuum cleaner assembly comprising a main housing, a primary filter system, and a secondary filter system. The main housing includes an inlet and an outlet. The primary filter system filters the air prior to being exhausted outwardly through the outlet. The secondary filter system is placed in downstream airflow from the primary filter system and provides additional filtering of the air prior to being exhausted to atmosphere.

Abstract: The present invention is a system 100 for removing particulate matter and aerosols from a gas stream generated by gasification prior to the gas stream being used as fuel in an internal combustion device or as synthesis gas for subsequent processing. The present invention consists of removing excess ash by passing the gas stream through a high temperature cyclone separator 102, cooling the gas stream, oil scrubbing the gas to further cool it and to remove particulates and some tars, passing the gas stream through one or more vortex chambers 28 to remove additional tars, passing the gas stream through a heat exchanger 104 to cool the gas, and finally passing the gas stream through a demister 106 to remove aerosols from the gas.

Abstract: The present invention is a method for removing particulate matter and aerosols from a gas stream generated by gasification prior to the gas stream being used as fuel in an internal combustion device or as synthesis gas for subsequent processing. The present invention consists of first cooling the gas stream, then oil scrubbing it to further cool it and to remove particulates and some tars, and finally passing the gas stream through one or more vortex chambers to remove additional tars. Each vortex chamber employs a high-speed fan that forces the tar droplets against the interior wall of the vortex chamber where the tar coalesces and is removed.

Abstract: A particulate capture system has an air circulating chamber that separates a first portion of particulates trapped within an air stream. The particulate capture system also has a water injection chamber that separates a second portion of particulates trapped within the air stream. The first portion of particulates is separated via circulating air flow. The second portion of particulates is separated via encapsulating the particulates in water and returning the encapsulated particulates to a cooling chamber where the particulates are blended with a bulk product being processed within the cooling chamber prior to collection of the bulk product.

Abstract: A vacuum cleaner assembly (10) includes a main housing (12) having an inlet (14) and an outlet (16). A motor (17a) is disposed within the main housing (12) for providing motive force to a cooling fan (17b), a blower (17c), and a separator (22). The separator (22) circulates the air and water bath (20) within a water bath pan (36) and provides, in combination with the water bath (20), a primary filter for filtering the air. A second filter assembly (24) is also provided preferably including a high efficiency filter (100 or 100a), or HEPA rated filter, for filtering microscopic dust and dirt particles that escape the separator (22) and water bath (20) and is disposed after both the water bath (20) and the separator (22) for additional filtering of the air. Alternatively, it may be a non-HEPA rated filter (101).

Abstract: An air washer includes an upwardly-open vessel for holding an air washing liquid. An air inlet opening into the upwardly open vessel introduces air to be washed below the upper level of the air washing liquid, and a chamber above the upper level of air washing liquid has inner and outer walls. A fan spaced from the upper level of air washing liquid is positioned within the outer wall of the chamber. The fan pulls an air flow through the inner wall of the chamber and exhausts it to an exhaust path downstream of the fan. Operation of the fan induces air to pass through the inlet and to be washed by the air washing liquid in the vessel and to pass through the chamber to the fan and then to be exhausted through the exhaust path. Air washing liquid entrained as liquid droplets in the cleaned air is propelled outwardly by the fan and centrifugally removed from the cleaned air.

Abstract: Gases containing solubles or suspended particles are mixed with a scrubbing liquid in a mixing apparatus having a chamber with a rotatable wheel mounted therein. The gas is mixed with a scrubbing liquid by the rotating wheel which has first and second scrubbing surfaces including vanes for creating turbulence and moving the gas through the chamber. The vanes on the first scrubbing surface increase in height from the axis of the wheel to its periphery to move gas radially outwardly. The vanes on the second scrubbing surface increase in height from the periphery to the axis of the wheel to move the gas radially inwardly.

Abstract: A liquid management unit uses a substantially horizontal rotor device partially submerged in a liquid so that at least a portion of a rotating component or the rotor device moves a liquid above the surface of the body of water and is then collected in a container for filtering, irrigation, or other purposes. A flap may be used with the container for opening and closing the container to incoming liquid. A control device such as an endless screw, chain, or rod may be used for opening and closing the flap especially when it is located on the interior of a shroud. A flow restriction unit can also be used with the liquid management unit to provide increased velocity to incoming liquid. The flow restriction unit is formed as a U-shaped member with an open inlet and opposite open outlet end. The inlet end cross sectional area may be increased by angling the sides outward at the inlet or slanting the bottom downward from the outlet to the inlet ends.

Abstract: A gas separation centrifuge is provided with a housing having a top, a bottom and a plurality of joined side walls parallel to an axis and forming a predetermined regular polygon cross-sectional shape perpendicular to the axis. A rotor is mounted for coaxial rotation within the housing, including a plurality of inverted truncated pyramid plates forming the predetermined regular polygon shape at an outer periphery, and forming the predetermined regular polygon shape at an interior edge. The plurality of inverted truncated pyramid plates are stacked coaxially and are axially spaced apart to form planar channels therebetween and define an interior annular volume with openings therefrom into the planar channels. There are also openings through the outer periphery. A first plurality of stationary concentric input tubes extends into the interior annular volume.

Abstract: Gases containing solubles or suspended particles are mixed with a scrubbing liquid in a mixing apparatus having a chamber with a rotatable wheel mounted therein. The gas is mixed with a scrubbing liquid by the rotating wheel which has first and second scrubbing surfaces including vanes for creating turbulence and moving the gas through the chamber. The vanes on the first scrubbing surface increase in height from the axis of the wheel to its periphery to move gas radially outwardly. The vanes on the second scrubbing surface increase in height from the periphery to the axis of the wheel to move the gas radially inwardly.

Abstract: Method and Apparatus for Percolating Vacuum Cleaning wherein driven by vacuum incoming to the apparatus mixture of air and other substances is directed under the top surface of a liquid, where heavier than air particles remain, but cleaned air particles percolate up to the sucking entrance of the vacuum initiator and then are exhausted from the apparatus.

Abstract: Fluid gases are stripped clean of gaseous and particulate pollutants as they pass rapidly up the stack of an industrial or electric power generation plant by a battery of rapidly rotated air foil spokes arrayed in two sets interleaved and revolving around a common central axis, a single motor providing the power that maintains the cleaning operation as long as flue gas flows toward discharge to the atmosphere.

Abstract: A waste gas scrubber includes a hollow, cylindrical atomizer, mounted for rotation about its longitudinal axis. The atomizer is partially submerged in a pool of liquid. The atomizer has relatively large openings at its two ends, and has a plurality of closely-spaced vanes along its middle section. Waste gas is drawn into the openings at one end of the atomizer, and is combined with liquid scooped in by the vanes when the atomizer rotates. The liquid tends to absorb and/or encapsulate particulates in the gas stream. The resulting fluid is then drawn out of the atomizer through the openings at its other end. A blower provides negative pressure which draws the fluids through the desired path, and which overcomes the centrifugal force produced by rotation of the atomizer. Substantially the entire interior region of the atomizer is used for scrubbing, so that the scrubber is much more efficient than waste gas scrubbers of the prior art.

Abstract: In the event of a breach in the off-gas line of a melter operation requiring closure of the line, a secondary vessel vent line is provided with a particulate collector utilizing atomization for removal of large particulates from the off-gas. The collector receives the gas containing particulates and directs a portion of the gas through outer and inner annular channels. The collector further receives a fluid, such as water, which is directed through the outer channel together with a second portion of the particulate-laden gas. The outer and inner channels have respective ring-like termination apertures concentrically disposed adjacent one another on the outer edge of the downstream side of the particulate collector. Each of the outer and inner channels curves outwardly away from the collector's centerline in proceeding toward the downstream side of the collector.

Abstract: A method and apparatus for controlling the flow of a fiber suspension having a direction of flow and a consistency from 5-25% including a treatment chamber having an axis extending in the direction of flow of the fiber suspension, a suspension inlet and a suspension outlet opposite the suspension inlet, the suspension inlet and outlet having the same diameter and an axis in alignment with the axis of said treatment chamber;a fluidizing rotor within the chamber for fluidizing the fiber suspension, the fluidizing rotor having an axis of rotation transverse to the axis of the treatment chamber; anda throttling arrangement disposed between the rotor and the suspension outlet for throttling the suspension flow.