Abstract: The present disclosure relates to a method for the removal of organic contaminates from wastewater. The method comprises contacting wastewater comprising water and an organic contaminate with a basic immobilized amine sorbent, where the basic immobilized amine sorbent comprises a polyamine bound to an inorganic support via a linker, such that contacting the wastewater causes at a least a portion of the organic contaminate to bind to the basic immobilized amine sorbent.

Abstract: A scanner includes a reading unit that reads an image of a paper, a medium feeding portion that is capable of selecting a first feeding mode in which a separation feeding for separately feeding a paper bundle in which a plurality of sheets of paper is overlapped with each other is performed and a second feeding mode in which a non-separation feeding for collectively feeding the paper bundle without separating is performed, and a pair of first transporting rollers and a pair of second transporting rollers that transport the paper fed by the medium feeding portion, in a case in which the medium feeding portion feeds the paper in the second feeding mode, a first driven roller and a second driven roller respectively constituting the pair of first transporting rollers and the pair of second transporting rollers are driven in a rotation direction where the paper is transported.

Abstract: The present invention relates to a method and system for removing an impurity from a feed gas stream. Various embodiments include, for example, using a rotating packed bed, a pressure reducing device such as a turbine and/or control valve, a regenerator, and novel internal seal designs and liquid distributors. Advantageously, at least a portion of any energy produced is recycled for use in the process or elsewhere.

Abstract: Vapor-liquid contacting apparatuses and methods for removing contaminants from gas streams are provided. In an embodiment, a vapor-liquid contacting apparatus includes a vortex contacting stage having a contacting zone bound by a wall and defining an axis, a radially inner region surrounding the axis, and a radially outer region adjacent the wall. The vapor-liquid contacting apparatus also includes a feed conduit configured to direct flow of a feed gas into the radially outer region of the contacting zone in a direction tangential to the axis to form a vortex. Further, the vapor-liquid contacting apparatus includes a liquid conduit configured to deliver a liquid absorbent stream to the radially inner region in the contacting zone.

Abstract: A device for separating liquid from gas in a well flow when compressing the well flow comprises a liquid separator (1?) having an inlet (13) for the well flow, an outlet (5) for gas and an outlet (4) for liquid. According to the invention separated liquid from the liquid separator (1?) is fine-divided in connection with the liquid outlet (4), and the fine-divided liquid is supplied into the gas outlet (5) at a mixing point (8) downstream the liquid separator (1?) and upstream a compressor (11).

Abstract: The invention relates to a process for separation or purification of gaseous streams by removal of acid gases using a liquid amine solution. The process involves the steps of—contacting the gaseous stream with liquid lean amine solution in at least one continuous flow stirred-tank reactor (10; 10a, 10b; 10c); —removing a sweetened gaseous flow from said continuous flow stirred-tank reactor (10); —removing rich amine from said continuous flow stirred-tank reactor (10; 10a, 10b; 10c) for regeneration; —passing rich amine solution through at least one flash tank stripper 20; 20a, 20b; 20c; —removing acid gases and vapour from said flash tank stripper 20; 20a, 20b; 20c; —removing lean amine from said flash tank stripper for recirculation to said continuous flow stirred-tank reactor (10; 10a, 10b; 10c).

Abstract: Wet-scrubber for cleaning flue gas, said wet scrubber comprising. The wet scrubber comprises a first end and a second end. Furthermore, it comprises an annular wall extending between the first end and the second end so as to form a chamber having a longitudinal axis, said annular wall and said ends having an inner surface and an outer surface, where said chamber comprises an inlet opening and an outlet opening, said openings being in fluid communication and defining a downstream direction from the inlet opening to the outlet opening. Furthermore, the wet-scrubber comprises a liquid distribution system comprising at least one liquid exit aperture for distributing a liquid film on the inner surface of the chamber. Finally, the wet-scrubber further comprises means arranged to rotate the liquid film on the inner surface of the annular wall relative to the annular wall.

Abstract: The system to remove contaminants from an air stream provides an apparatus and method for removing pollutants, especially carbon, from polluted air. The apparatus and method include a device for thoroughly mixing polluted air with water in a manner to cause the carbon to disassociate from the air and be suspended in the water. The cleansed air is re-circulated for reuse. In one embodiment, clay or sand is utilized to absorb the carbon from the water. As contemplated, the carbon-enriched clay or sand may be used for land reclamation.

Abstract: The invention relates to a continuous process for removal of acid gas, such as carbon dioxide (CO2) from a fluid stream, such as natural gas comprising mainly hydrocarbons, by means of a absorbent medium in a rotating absorption zone. Subsequently, the acid gas is desorbed in a rotating desorption zone from the absorbent medium to allow the absorbent medium to be recirculated and the acid gas is removed for storage or drying and processing. This process can be carried out continuously, as the absorption medium is re-used.

Abstract: The present invention provides an automotive exhaust system that removes harmful contaminants from engine exhaust and thus reduces air pollution, presents a number of distinct and significant benefits and advantages. Foremost, the Green Muffler subjects engine exhaust gases to a two-stage cleansing and purification process, first scrubbing the gases in a recirculating air-and-water bath; and then combining the remnant gases with an air-freshening chemical before release to the atmosphere. The Green Muffler, then, serves to lower a vehicle's carbon-dioxide and carbon-monoxide emissions and thereby reduces the level of air pollution and atmospheric warming due to car exhaust. Further, the Green Muffler reduces the temperature of vehicle exhaust, another plus for the planet.

Abstract: A rotating packed bed RPB that includes a first and second packed bed both arranged on the same rotatable shaft. A gas is directed via a gas inlet through the first packed bed in co-current flow with a liquid in a radially outward direction towards the outer radius of the packed bed. The liquid enters the first packed bed via a first liquid inlet. The gas exiting the first packed bed is directed to the second packed bed and forced through it in a radially inward direction in counter-current flow with a liquid, which enters through a second liquid inlet. The arrangement allows an operation of the rotating packed bed with less energy compared to RPBs of the prior art operating in counter-current flow only. The apparatus allows low-cost design and high design flexibility.

Abstract: A gas and liquid contacting vessel comprises a distributor apparatus. The distributor apparatus comprising at least one housing rotatable about an axis of the housing for receiving liquid. Each rotatable housing having a distributor region comprising at least one liquid outlet or arrangement of liquid outlets formed in the housing from which liquid is projected from the housing as at least one liquid sheet onto an inner wall of the vessel. A pressurised source of liquid such as via a pump for providing liquid through the liquid outlets in the distributor apparatus to project liquid from the housing at least initially, in a stream of liquid extending continuously along the length of the liquid outlet corresponding to the inner wall of the vessel, and a gas inlet communicating with the gas liquid contacting space, the gas inlet directing gas into contact with the liquid sheets projected from the outlets in the housing.

Abstract: A nozzle for spraying a liquid, comprising a central body which comprises a connecting portion for connecting the nozzle to a supply of liquid, an atomizing portion forming droplets of the liquid, and a liquid supply pipe forwarding liquid to the atomizing portion. The nozzle further comprises a sleeve mounted on the central body, the sleeve comprising a central aperture, which at least partly encloses the atomizing portion of the central body, and a spray angle controlling rim which at least partly encircles the atomizing portion.

Abstract: A method of removing contaminants from a gas stream utilizing a supersonic venturi including a converging section, a throat, and a diverging section is provided. A contaminated gas stream and a scrubbing liquid stream are introduced into the converging section, thereby forming a mixed stream which experiences choked flow upon exiting. The choked mixed stream is introduced into the throat section wherein the scrubbing liquid is contacted with the contaminated gas stream. The contaminated scrubbing liquid stream is removed from the supersonic venture scrubber, and an essentially pure gas stream is removed from the diverging section. A flow modification device may be introduced into the throat section. The flow modification device may be either axially or radially adjustable in order to effect the atomization of the scrubbing liquid and/or the contacting of atomized scrubbing liquid with the contaminated gas stream within the throat section.

Abstract: Provided is a method, liquid distributor and reactor for contacting a gas with a liquid in a rotating packed bed. The method comprises providing a rotating packed bed comprising two sets of rotatable packing rings disposed within a chamber and defining an interior region. The rotating packed bed also comprises at least one liquid distributor with an inlet for accepting a liquid, the inlet in communication with an exit port for infusing the liquid into the interior region. The liquid distributor also comprises at least one gas outlet for accepting gas which has passed through the packed bed and for removing the gas from the interior region. The two sets of rotatable packing rings are caused to rotate. Liquid is infused into the interior region by way of the liquid inlet, and gas is injected through at least one gas inlet into the interior region, with the liquid and gas passing through each of the packing rings in countercurrent flow.

Abstract: An apparatus for mass transfer of a gas into a liquid, including a tank that defines a chamber for receiving the gas, and at least one surface provided within the chamber. Each surface has an inner region, an outer region and an edge adjacent the outer region. Each surface is configured to receive the liquid at the inner region and rotate such that the liquid flows on the surface from the inner region to the outer region, and, upon reaching the edge of the surface, separates to form liquid particles that move outwardly through the gas in the chamber. The liquid particles are sized so that the gas is absorbed by the liquid particles to produce a mixed liquid saturated with the gas during a brief flight time of the liquid particles through the chamber.

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: To develop a means for effectively utilize terpene compounds contained in tree leaves, whereby branches and leaves cut in tree thinning and pruning can be effectively utilized as a resource. For this purpose, provided are a monoterpene component-rich essential oil containing 90% or more of monoterpene components; a method for producing the monoterpene component-rich essential oil which includes subjecting coniferous leaves to microwave steam distillation and collecting a distillate thus obtained; and a method for removing environmental pollutants which includes bringing the monoterpene component-rich essential oil into contact with atmosphere containing the environmental pollutants.

Abstract: A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. The vessel contains an ionic liquid therein. The fluid is contacted with the ionic liquid for take-up of the fluid by the ionic liquid. There is substantially no chemical change in the ionic liquid and the fluid. The fluid is released from the ionic liquid and dispensed from the vessel.

Abstract: Provided is a method for contacting a gas with a liquid in a rotating packed bed. The method comprises providing a rotating packed bed comprising two sets of rotatable packing rings disposed within a chamber and defining an interior region. The rotating packed bed also comprises at least one liquid distributor with an inlet for accepting a liquid, the inlet in communication with an exit port for infusing the liquid into the interior region. The liquid distributor also comprises at least one gas outlet for accepting gas which has passed through the packed bed and for removing the gas from the interior region. The two sets of rotatable packing rings are caused to rotate. Liquid is infused into the interior region by way of the liquid inlet, and gas is injected through at least one gas inlet into the interior region, with the liquid and gas passing through each of the packing rings in countercurrent flow.

Abstract: Vapor-liquid contacting apparatuses comprising both a primary absorption zone and a secondary absorption zone comprising a plurality of vortex contacting stages are described. The apparatuses provide improved heat and mass transfer between vapor and liquid phases in processes such as absorption, to selectively solubilize contaminants (e.g., acid gases) from an impure vapor (e.g., sour natural gas). Vortex contacting stage(s) in a zone of vapor-liquid contacting, such as a secondary or finishing absorption zone, are used following bulk absorption in a primary or main absorption zone.

Abstract: A device for exchanging energy and/or mass between a gas and a liquid, including a gas-liquid exchanging vessel having a gas inlet end, a gas outlet end and an upper end; a gas inlet pipeline; a gas outlet pipeline; a gas blocking plate; a liquid blocking plate; and a gas passage. The upper end of the gas-liquid exchanging vessel is closed. The gas inlet end of the vessel is connected with the gas inlet pipeline. The gas outlet end of the vessel is connected with the gas outlet pipeline. The gas blocking plate is fitted in the gas inlet end of the vessel. The liquid blocking plate is fitted in the gas outlet end of the vessel. The vessel is filled with liquid. The gas passage formed above the liquid is communicated with the gas inlet pipeline and the gas outlet pipeline.

Abstract: An exhaust-gas processing apparatus in nonferrous smelting facilities includes: a tower that removes particulate impurities from an exhaust gas emitted from a furnace by spraying a circulating liquid onto the exhaust gas, and deposits the circulating liquid in a lower portion of the tower, the impurities being suspended in the circulating liquid; a pipe in which the circulating liquid deposited in the lower portion of the tower circulates; and a filtering device that has the pipe connected thereto, and captures and filters the circulating liquid having the impurities suspended therein, the filtering device continuously removing the impurities from the circulating liquid, the filtering device packing the removed impurities into containers.

Abstract: A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. A solvent mixture comprising an ionic liquid and a cosolvent is provided within the vessel. The fluid is contacted with the solvent mixture for take-up of the fluid by the solvent mixture. The fluid is released from the ionic liquid and dispensed from the vessel.

Abstract: A system includes a direct contact absorber configured to circulate a flow of a liquid desiccant solution for absorbing moisture from a gas stream flowing through the direct contact absorber.

Abstract: An air filtration system is described for removing oil and grease entrained in air extracted from the region above a cooker. The system comprises a first mesh screen filter leading to a first chamber, in which two nozzles 10 create two separate continuous water curtains 15a, 15b which overlap when viewed in the direction of the air flow to form a combined curtain extending across the region through which the air passes. The extracted air then passes via a second mesh screen filter 11 into a second chamber 12, identical to the first chamber 9, in which two further nozzles 13 are provided which create two further water curtains 15c, 15d. The water curtains 15a, 15b, 15c, 15d cool and condense vaporized oil and grease within the air, which condensed oil and grease droplets fall with the water into a container. The main bore of each nozzle is of circular cross-section, but a profiled plate causes the resulting water curtain to have a width which is narrow relative to the diameter of the nozzle bore.

Abstract: The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to individually fed nozzle banks including an array of nozzles configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas. An embodiment of the invention is directed towards a gas liquid contactor having a plurality of modules including a liquid inlet and outlet and a gas inlet and outlet. An array of nozzles is in communication with the liquid inlet and the gas inlet. The array of nozzles is configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas flow and maximize gas flow and liquid flow interactions while rapidly replenishing the liquid.

Abstract: The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to an array of nozzles configured to produce uniformly spaced flat liquid jets with reduced linear stability. An embodiment of the invention is directed towards a stability unit used with nozzles of a gas liquid contactor and/or an enhancer for stable jet formation, and more particularly to reducing the stability of liquid jets formed from nozzles of the gas liquid contactor. Another aspect of the invention relates to operating the apparatus at a condition that reduces the stability of liquid jets, e.g., a droplet generator apparatus. Yet another aspect of the invention relates to operation of the apparatus with an aqueous slurry. Still another aspect of the invention is directed towards to an apparatus for substantially separating at least two fluids.

Abstract: A system and associated method for removing metal, including metal in vapor form, from high temperature fluid emissions such as may occur at the exhaust of furnaces or thermal treatment equipment. One embodiment is the Integrated Metal Emissions Control System (IMECS™) incorporating both a Steel Screen Particulate (SSP) Filter System and a Perlite Based Sorbent (PBS) System. IMECS™ uses the SSP Filter System, with pore sizes down to one micron, to capture toxic metal particulate materials and the PBS System to capture vapor phase metals using surface-modified perlite. Using the IMECS™, EPA-listed heavy metals have been removed from representative high-temperature emissions in field tests to easily meet the NESHAP standards.

Abstract: A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. The vessel contains an ionic liquid therein. The fluid is contacted with the ionic liquid for take-up of the fluid by the ionic liquid. There is substantially no chemical change in the ionic liquid and the fluid. The fluid is released from the ionic liquid and dispensed from the vessel.

Abstract: The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to an array of nozzles configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas. An embodiment of the invention is directed towards a gas liquid contactor module including a liquid inlet and outlet and a gas inlet and outlet. An array of nozzles is in communication with the liquid inlet and the gas inlet. The array of nozzles is configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas flow and maximize gas flow and liquid flow interactions while rapidly replenishing the liquid.

Abstract: A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. The vessel contains an ionic liquid therein. The fluid is contacted with the ionic liquid for take-up of the fluid by the ionic liquid. There is substantially no chemical change in the ionic liquid and the fluid. The fluid is released from the ionic liquid and dispensed from the vessel.

Abstract: Greenhouse gas emissions containing methane are collected at the source and dispersed into the soil via subsurface drip irrigation techniques. In one embodiment, methane gas generated from anaerobic digestion in a septic tank, such as a decentralized septic system, is disposed of via a subsurface wastewater disposal system. Secondary-treated wastewater effluent from the septic tank and the air/methane gas drawn from above the septic tank can be alternately pumped downstream to a drain field containing a time-dosed dispersal system comprising drip irrigation emitters in downstream driplines. Alternatively, the air/methane gas can be simultaneously drawn from the septic tank and injected into the pressure flow of wastewater effluent via a venturi-type mixer-injector. The methane gas pumped through the drip system into the soil can oxidize and break down into carbon dioxide as one of its by-products.

Abstract: A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. A solvent mixture comprising an ionic liquid and a cosolvent is provided within the vessel. The fluid is contacted with the solvent mixture for take-up of the fluid by the solvent mixture. The fluid is released from the ionic liquid and dispensed from the vessel.

Abstract: A scrubber removes matter (e.g., particulate, gaseous, or liquid) from a gas stream in order to recover the matter and/or to clean the gas. In particular aspects, the scrubber contains multiple venturis that may provide additional flexibility and increased efficiency. The invention also pertains to related methods.

Abstract: An extraction device, preferably a scrubbing device, for a gas comprising a diffuser for transmitting a gas through a diffusing zone of the diffuser and means for jetting a stream of liquid over the whole of the diffusing zone such that the gas is entrained by the stream of liquid. A method is also provided, including jetting a stream of liquid over the whole of a diffusing zone of a diffuser and transmitting a gas through the diffusing zone into contact with the steam of liquid.

Abstract: An apparatus for collecting airborne particles includes a cyclone into which external air and an absorbing liquid are sprayed to absorb the airborne particles in the external air with the absorbing liquid, a reservoir in fluid communication with the cyclone and which stores the absorbing liquid to be sprayed into the cyclone as an absorbing liquid film, a collector in fluid communication with the cyclone and which collects the absorbing liquid film from the cyclone, and a feedback pipe in fluid communication with the collector and the reservoir and which transports the absorbing liquid film collected in the collector to the reservoir.

Abstract: A process for producing a solution of a gas in a liquid in which the gas is soluble, the solution having a predetermined concentration up to saturation. The gas and the liquid are brought together under controlled supply in a proportion corresponding to the predetermined concentration of the solution, and the gas and the liquid are caused to form a stream passing through a common conduit. The gas and the liquid in the stream are caused to intermix under the action of gravity, and the intermixing is repeated before the gas and the liquid have separated, so that the gas is substantially absorbed in the liquid, forming a gas-liquid solution of the predetermined concentration. The stream may be brought into turbulence for intensifying the intermixing of the gas and the liquid. An apparatus for performing the process comprises a conduit including a continuous tubular coil formed with a plurality of upwardly and downwardly directed sections.

Abstract: The invention relates to a process for reducing the residual hydrogen fluoride gases in a fluorinated plastic tank, in particular in a plastic tank for a motor vehicle, in which firstly the space within the tank is subjected to a fluorination step and then, in at least one gas flushing process, the reaction products of the fluorination step are removed from the plastic tank. In a process in which the undesired reaction product hydrogen fluoride is completely eliminated and which is suitable for efficient large-scale production, after the gas flushing process, a neutralization step is carried out to bind residual fluorination gases on the inner layers of the plastic tank.

Abstract: The present invention is directed to an apparatus and method for providing absorption of two fluid phases with one another and for the magnetic treatment of the phases for molecular realignment for effective separation of contaminants.

Abstract: A gas suction filtration apparatus in which a liquid filter medium is contained in a closed container. A gas intake pipe is positioned so as to introduce the gas to be filtered into the bottom of the container and a suction device applies a suction force to the upper part of the container to draw the gas through the liquid filter medium. Gas-liquid mixing plates are disposed in the container which have numerous holes for passage of the gas therethrough. The mixing plates have diameters only slightly smaller than that of the container, and preferably the gap between the outside diameter of the plates and the inside diameter of the container is smaller than the diameter of the holes so that substantially all of the gas to be filtered must pass through the holes to facilitate contact between the gas and the liquid filter medium.

Abstract: A continuous process for recovery of acetylene-free gaseous mixture from gaseous feedstreams containing acetylene and optionally other low molecular weight hydrocarbons by contacting the acetylene-containing feedstream with an alkanol in combination with a super acid catalyst, Lewis acid, Bronsted acids, or mixtures thereof, under conditions of reaction sufficient to form a mixture containing at least one acetal organic compound, and a gaseous product substantially free of acetylene. Preferred catalysts include boron trifluoride in methanol with mercuric oxide. Processes according to the invention are, advantageously, used for recovery of acetylene-free gaseous mixture from gaseous feedstreams containing a mixture of acetylene, a synthesis gas comprising dihydrogen and carbon monoxide, and optionally one or more members of the group consisting of dimethyl ether, formaldehyde, ethylene, and propylene.

Abstract: A sewage purification method which includes a first step in which at least two kinds of flocculants are introduced in sewage for stirring and mixing therewith so as to float and settle inorganic and organic materials. The first step is sequentially repeated more than one time. Next, at least three kinds of flocculants are introduced into the supernatant obtained in the first step for stirring and mixing therewith so as to further float and settle remaining inorganic and organic materials. At least one of the first and second steps is sequentially repeated more than one time. In the above way, middle water, drinking water and super-pure water can be obtained from sewage. Purification of exhaust gas is also possible by introducing such exhaust gas in one of the above steps.

Abstract: Acid gas (a mixture of carbon dioxide and hydrogen sulfide) is absorbed by produced water from hydrocarbon wells. The acid gas is absorbed in the produced water in a static mixer. The time from the entry of the produced water into the static mixer to its exit is less than ten seconds. The produced water with the absorbed acid gas is pressurized to flow through a pipeline to an injection pump. The injection pump injects the produced water with the absorbed acid gas into injection wells which return the produced water into disposal strata. The produced water with the acid gas is maintained at a pressure higher than the pressure at the exit of the static mixer.