Abstract: A room air purifier has a body with a frame at least partially defining an interior chamber and an opening to the chamber. A purification mechanism in the chamber includes one or more filters and one or more blowers. A panel is configured to removably mount to the body and cover the opening to the chamber. A base mounted to the body, and each leg of a set of legs is mounted to the base. A nonwoven fabric portion covers at least part of the body. The blower when activated generates an inflow through the nonwoven fabric portion and a filter, and an outflow though the body, all while hidden from view in what to an observer looks like an article of furniture.

Abstract: Disclosed herein is an air cleaner capable of being coupled or separated in a vertical direction to improve space utilization. An air cleaner may include a first air cleaning module provided with a first connection unit, and a second air cleaning module detachably coupled to the first air cleaning module and provided with a second connection unit, wherein the second connection unit is configured to be detachably coupled to the first connection unit, and configured to be rotatable with respect to the first connection unit when the second connection unit is coupled to the first connection unit.

Abstract: A filter assembly that includes a filter housing with a housing interlocking feature, a filter cover with a filter cover interlocking feature, and a filter element with a filter element interlocking feature is disclosed. The filter element is positionable within the filter housing, and the filter cover is attachable to a top portion of at least one of the filter element and the filter housing. The housing interlocking feature, the filter cover interlocking feature, and the filter element interlocking feature are interlockable with each other and extend in a nonplanar configuration along at least one side of the filter element when the filter housing, the filter cover, and the filter element are assembled together.

Abstract: An aerosol distributor and an arrangement for filter leakage detection in a gas filtration system comprising such aerosol distributor, the aerosol distributor being configured to be positioned in a gas stream upstream of the filter, said aerosol distributor comprising: a housing comprising a primary chamber in fluid connection with two or more secondary chambers; the housing having an inlet for admitting a test aerosol from an aerosol source into the primary chamber and passages for releasing the test aerosol from the primary chamber into each of the secondary chambers; said secondary chambers being elongated and provided with a plurality of outlet holes along the length thereof for releasing the test aerosol from the secondary chambers into a gas stream surrounding the aerosol distributor; characterized in that the dimensions of the inlet, the primary chamber, the passages, the secondary chambers and the outlet holes are selected such that during operation, the pressure of the test aerosol in the primary cha

Abstract: Air cleaner assemblies and components therefor are described. An example first or main filter cartridge is described which includes a media pack comprising fluted material secured to facing sheets. The media pack defines opposite inlet and outlet flow faces, with flutes extending in a direction therebetween. The cartridge defines a closed end, spaced from, but in overlap with, the outlet end face of the media pack.

Abstract: Disclosed are a pollutant capturer and mobilizer and method of mobilizing a polluted gaseous substance from one location towards another location and capturing one or multiple types of polluting substances, such as CO2, from an atmospheric body of polluted gaseous substance or from exhaust of vehicles, chimneys, or stacks and thereby combat the negative health, environmental, and economic impacts of the of the polluting substances on communities. Wet or dry embodiments of the pollutant capturer and mobilizer utilize wet or dry pollutant capturing components, respectively, to capture one or multiple types of polluting substances from a body of polluted gaseous substance. Flow establishing devices can be used to set the body of polluted gaseous substance in motion through the pollutant capturing component. The pollutant capturer and mobilizer may also be mounted on any type of vehicles, with or without using flow establishing devices.

Abstract: Embodiments of methods and associate system for removing acid gas from a sour gas stream are provided. The method includes (1) passing the sour gas stream in a counter-flow arrangement with an encapsulated phase change material and a lean amine based sorbent liquid configured to absorb the acid gas from the sour gas stream in an absorber; (2) separating the rich amine based sorbent liquid and the encapsulated phase change material; (3) passing the rich amine based sorbent liquid to an amine regenerator wherein the rich amine based sorbent liquid is heated to release the absorbed sour gas and regenerate the lean amine based sorbent liquid; and (4) passing the encapsulated phase change material and the regenerated lean amine based sorbent liquid through a cooler to reduce the temperature of the encapsulated phase change material such that the phase change material in the encapsulated phase change material solidifies.

Abstract: An air-liquid amine contactor for gaseous carbon dioxide extraction includes a manifold and a contactor. The manifold dispenses liquid amine into the contactor in a controlled manner. The liquid amine dispenses as a film that spreads over a plurality of plenum bodies mounted within the manifold. Each of the plurality of plenum bodies includes a plurality of V-shaped channels which increase the overall surface area of the plenum body. The plurality of V-shaped channels includes a first inner wall and a second inner wall positioned at an angle ranging from 24 to 28 degrees to each other. Further, each of the plurality of wedge-inserts includes a first fluid orifice, a second fluid orifice, and an inlet orifice. Each wedge-insert is positioned within a corresponding V-shaped channel. Finally, the contactor is mounted adjacent to the contactor which positions the plurality of V-shaped channels perpendicular to a bottom surface of the manifold.

Abstract: Disclosed herein is a rotating packed bed, RPB, for mass transfer between a sorbent and a gas, the RPB comprising: a central chamber arranged to receive a flow of a sorbent that is a liquid; and a flow path for the sorbent between the central chamber and a region for mass transfer between a gas and the sorbent; wherein, in use, the flow of sorbent through the region for mass transfer is substantially in cross-flow with the flow of gas through the region for mass transfer. Advantageously, mass transfer between a liquid sorbent and a gas is improved.

Abstract: Hydrogen generation assemblies, hydrogen purification devices, and their components are disclosed. In some embodiments, the devices may include a permeate frame with a membrane support structure having first and second membrane support plates that are free from perforations and that include a plurality of microgrooves configured to provide flow channels for at least part of the permeate stream. In some embodiments, the assemblies may include a return conduit fluidly connecting a buffer tank and a reformate conduit, a return valve assembly configured to manage flow in the return conduit, and a control assembly configured to operate a fuel processing assembly between run and standby modes based, at least in part, on detected pressure in the buffer tank and configured to direct the return valve assembly to allow product hydrogen stream to flow from the buffer tank to the reformate conduit when the fuel processing assembly is in the standby mode.

Abstract: Hydrogen generation assemblies and methods of generating hydrogen are disclosed. In some embodiments, the method may include receiving a feed stream in a fuel processing assembly of the hydrogen generation assembly; and generating a product hydrogen stream in the fuel processing assembly from the received feed stream. Generating a product hydrogen stream may, in some embodiments, include generating an output stream in a hydrogen generating region from the received feed stream, and generating the product hydrogen stream in a purification region from the output stream. The method may additionally include receiving the generated product hydrogen stream in a buffer tank of the hydrogen generation assembly; and detecting pressure in the buffer tank via a tank sensor assembly. The method may further include stopping generation of the product hydrogen stream in the fuel processing assembly when the detected pressure in the buffer tank is above a predetermined maximum pressure.

Abstract: Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided, as well as related apparatus, processes and uses thereof. A single-stage air scrubbing apparatus is provided that includes at least one reaction vessel, at least one introduction duct, and a turbulence component, wherein a residence time is sufficient to allow the conversion of at least one atmospheric pollution compound to at least one other compound, molecule or atom. In some embodiments, the at least one atmospheric pollution compound comprises nitrogen oxide, sulfur oxide or a combination thereof. Additionally, methods of removing atmospheric pollution compounds from a waste gas stream are disclosed that include introducing a waste gas stream and at least one additional gas stream, mist stream, liquid stream or combination thereof into a single-stage air scrubbing apparatus at a flow rate sufficient to allow for conversion of the at least one atmospheric pollution compound.

Abstract: Disclosed herein is an air cleansing system including an air supplying device and an air cleansing device. The air supplying device is configured to deliver an airflow that contains pollutants therein into the air cleansing device. The air cleansing device comprises an electric generator, which is configured to generate an electrical energy from the airflow. The air cleansing device also comprises an ozone generator, which is driven by the electrical energy and is configured to produce ozone to cleanse the airflow via removing the pollutants therefrom. The air cleansing device is substantially operated without utilizing any additional electrical energy supplied from outside the air cleansing system; and the airflow is substantially cleansed without utilizing any pollutant trapping material to remove the pollutants from the airflow.

Abstract: In one aspect the invention provides a fumigant gas capture apparatus. This apparatus includes at least one channel adapted for connection to a volume containing a fumigant gas, the channel defining an inlet which receives gas and an outlet which allows gas to exit the channel. The apparatus also includes at least one drive structure arranged to drive fumigant gas through the channel, at least one spray nozzle adapted to deliver a treatment liquid into the channel, and at least one packing element positioned within the channel to allow a spray nozzle or nozzle to spray treatment liquid on to the packing element.

Abstract: A nitric acid production process, comprising tertiary abatement of N2O and NOx on a tail gas withdrawn from an absorption stage, said abatement including passing the tail gas over a sequence of a deN2O stage comprising a Fe-z catalyst and a deNOx stage comprising a V2O5-TiO2 catalyst in the presence of gaseous ammonia, wherein the tail gas at the inlet of deN2O stage and the tail gas at the inlet of deNOx stage have a temperature greater than 400° C.

Abstract: The present invention solves the existing problem of using very expensive oxidation reagents, such as H2O2 and ozone, in removal of NOx and SOx from flue gases, by performing simultaneous oxidation of NOx and SOx with atmospheric oxygen in a combined system for catalytic oxidation and wet-scrubbing of both NOx and SOx from a flue gas and manufacturing fertilisers. Two major configurations of the oxidation system are disclosed in the present invention. The first configuration operates on oxygen-enriched air to increase efficiency of the oxidation reaction and requires an additional oxygen concentrator unit. The second configuration operates on atmospheric air at ambient conditions and requires an additional catalyst activation unit. In the second configuration, the efficient oxidation process is carried out at low temperatures of about 30-90° C. in the presence of recovered and re-activated catalyst.

Abstract: A cleaning device includes a housing, an air driver, an ozone generator, and a catalyst. The housing defines an inlet, an outlet, and an internal cavity connecting the inlet to the outlet. The air driver is positioned within the internal cavity. The air driver is configured to draw contaminated air from an external environment into the inlet and through the internal cavity of the housing to facilitate decontaminating the contaminated air and emitting clean air out of the outlet into the external environment. The ozone generator is positioned within the internal cavity. The ozone generator is configured to generate ozone. The catalyst is positioned within the internal cavity. The ozone and/or the catalyst are configured to interact with the contaminated air to produce the clean air.

Abstract: A cleaning device includes a housing having a first end defining an inlet and an opposing second end defining an outlet. The housing defines an internal cavity. The housing has a first portion, a second portion, and an intermediate portion. The first portion defines a first chamber of the internal cavity that is connected to the inlet. The first portion has a first width. The second portion defines a second chamber of the internal cavity that is connected to the outlet. The second portion has a second width greater than the first width. The intermediate portion extends between the first portion and the second portion. The intermediate portion defines an intermediate chamber. The intermediate portion has a linear profile or a non-linear profile. The cleaning device further includes an air driver positioned within the first chamber, an ozone generator positioned within the intermediate portion, and a catalyst positioned within the second chamber.

Abstract: A concurrent desalination and boron removal (CDBR) process and a system thereof are provided. The system includes: a plurality of single-stage reverse osmosis (SSRO) stages connected in series, and a countercurrent membrane cascade with recycle (CMCR). The process includes the following steps: introducing a retentate from one SSRO stage or a series of SSRO stages optimally as a feed to a CMCR; countercurrent a retentate flow and a permeate flow in the CMCR; permeate recycling to a retentate side in the CMCR; retentate self-recycling in at least one of membrane stages in the CMCR; introducing a permeate from the SSRO stage(s) as a feed to an LPMS; and blending permeate streams from the CMCR and LPMS to achieve concentrations in a water product.

Abstract: A multiple tangential flow filtration (TFF) apparatus includes a plurality of tangential flow filtration (TFF) systems, a support frame defining a plurality of stations for supporting individual TFF systems and a single controller for controlling the plurality of tangential flow filtration systems. Each of the systems include at least a product vessel, a tangential flow filtration (TFF) filter and a pump for circulating a flow of liquid between said product vessel and said filter.

Abstract: Provided is a method for cleaning a filtration membrane provided in a membrane filtration device that is immersed in a liquid to be treated and performs solid-liquid separation on the liquid to be treated. When a transmembrane pressure difference exceeds a first predetermined pressure difference P1, a first cleaning step W1 for cleaning a filtration membrane is performed using a first chemical solution; when the transmembrane pressure difference immediately after performing the first cleaning step W1 exceeds a second predetermined pressure difference P2 that is lower than the first predetermined pressure difference, a second cleaning step W2 for cleaning the filtration membrane is performed using a second chemical solution having a concentration higher than the first chemical solution; and when the second cleaning step W2 is performed, the concentration of the second chemical solution and/or the cleaning time is changed according to the temperature of the liquid to be treated.

Abstract: A permeable material that allows air to easily pass through the interstices in any direction. The permeable material may be a cloth, a mesh, latex, rubber, or any polymer. The material is saturated with a water and/or alcohol based solution containing either a cationic or anionic agent, a disinfecting agent, and a biocide. The solvent on the permeable material is permitted to evaporate. What remains on the permeable material is the cationic or anionic agent and the biocide. This coated material is now surrounded by an electrostatic field. The electrostatically charged material attracts oppositely charged particles and repels similarly charged particles. The particles that contain living organisms are inactivated by the biocide. The formulations have been shown to have efficacy against rhinovirus causing colds, influenza and corona viruses causing diseases such as swine flu and COVID-19, as well as other harmful airborne microscopic and sub-microscopic particles.

Abstract: Described are composite hollow fibers filter membranes that include a porous polymeric hollow fiber support and a filter layer; methods of making the composite hollow fibers and using the composite hollow fibers as a filter membrane; methods of making a filter component or filter from the composite hollow fiber; and filter components and filters that contain the composite hollow fibers as filter membranes.

Abstract: The present invention provides a porous hollow fiber membrane suitable for the removal of minute substances, e.g., viruses, contained in a liquid. The present invention relates to a porous hollow fiber membrane which is provided with a separation-functioning layer containing a fluororesin, has a gas diffusion amount of 0.5 to 5.0 mL/m2/hr as measured in a diffusion test, and also has foaming points at a density of 0.005 to 0.2 point/cm2 as measured in a foaming test under the immersion in 2-propanol.

Abstract: An apparatus for producing nano-bubbles in a volume of liquid is described. The apparatus includes a motor having a rotatable shaft, an axially rotatable permeable member couplable to a gas inlet, and a rotatable tube support coupled to the rotatable shaft of the motor and having an inner cavity that houses the axially rotatable permeable member. When rotated, the axially rotatable permeable member is rotated so that the surface velocity of the rotatable permeable member simulates axial turbulent flow above the turbulent threshold in the liquid that allows the liquid to shear gas from the outer surface of the axially rotatable permeable member, thereby forming nano-bubbles in the liquid.

Abstract: An elongate diffuser (10) comprises a diffuser body (30), and a membrane (20) attached so that introduction of gas at a working pressure into the diffuser displaces part of the membrane (20) from contact with the diffuser body (10) providing an elongate sealed compartment (50) between the membrane (20) and a surface (32) of the diffuser body (30). The gas can pass from the compartment (50) through the membrane (20) for aeration of fluid in which the diffuser (10) is immersed. The diffuser body surface (32) which bounds the compartment (50) is recessed away from the membrane (20) in use, to contribute to the lateral cross sectional area of the compartment (50) and facilitate distribution of gas along the diffuser by the compartment (50). An automatic purge valve for purging water from a gas feed pipe of a diffuser is also disclosed.

Abstract: A mixing apparatus includes a phosphoric acid aqueous solution supply, an additive supply, a tank, a phosphoric acid aqueous solution supply path and an additive supply path. The phosphoric acid aqueous solution supply is configured to supply a phosphoric acid aqueous solution. The additive supply is configured to supply an additive configured to suppress precipitation of a silicon oxide. The phosphoric acid aqueous solution supply path is configured to connect the phosphoric acid aqueous solution supply with the tank. The additive supply path is configured to connect the additive supply with the tank. The additive is supplied while fluidity is imparted to the phosphoric acid aqueous solution supplied from the phosphoric acid aqueous solution supply into the tank.

Abstract: A microfluidic device for forming droplets includes at least one ferrofluid reservoir disposed in the microfluidic device and containing a ferrofluid therein. The microfluidic device includes a continuous-phase reservoir disposed in the microfluidic device and containing an oil phase therein and one or more microfluidic channels connecting between the at least one ferrofluid reservoir and the continuous-phase reservoir, the continuous-phase reservoir comprising a step region having an increased height as compared to a height of the one or more microfluidic channels. To form droplets an externally applied magnetic field is applied to the device to pull the ferrofluid into the continuous-phase reservoir, whereby droplets are formed at step region.

Abstract: A chemical liquid dilution system includes a first material offering device providing fluid, a second material offering device, and a mixing device. The second material offering device provides liquid. The mixing device includes a fluid mixer, a first connection port, a second connection port, and an output port. The fluid mixer has a fluid limiting channel with an interface communicating with the first connection port and another interface communicating with the second connection port and the output port. The first connection port is connected to the first material offering device. The second connection port is connected to the second material offering device. After the fluid passes through the first connection port and the fluid limiting channel, the fluid and liquid are mixed up to form a diluted chemical liquid, and the output port discharges the diluted chemical liquid. A chemical liquid dilution method is also disclosed.

Abstract: An outpouring assembly, comprising an outpouring plate, wherein the outpouring plate is provided with a liquid outlet through hole, a paste discharge pipe is disposed in the liquid outlet through hole, the paste discharge pipe moves up and down in the liquid outlet through hole, and when a lower end of the paste discharge pipe extends out of the liquid outlet through hole, the paste discharge pipe is in a liquid outpouring state. A beneficial effect of the present invention is as follows: Because a liquid such as the color paste or water has surface tension, the color paste adheres to a surface of an outlet, outpouring precision of the outpouring assembly is affected. A paste discharge pipe is disposed in the liquid outlet through hole, so that a quantity of color pastes adhered to a paste discharge outlet of the paste discharge pipe can be effectively reduced.

Abstract: The presently disclosed subject matter relates to a system for customizing a cosmetic product. The system includes: an interface device, in electronic communication with a single batch formulation device. The single batch formulation device is configured to formulate a customized cosmetic product, and a threaded container configured to be imported into the single batch formulation device containing a base and exported from the single batch formulation device containing the customized cosmetic.

Abstract: A well material distribution method includes obtaining at least one material-containing sack containing at least one well material, placing the at least one material-containing sack in an automatic sack cutting machine, opening the at least one material-containing sack and dispensing the at least one well material by operation of the automatic sack cutting machine and distributing the at least one well material from the automatic sack cutting machine directly into a mixing vessel configured to simultaneously handle a plurality of well materials. Well material distribution systems are also disclosed.

Abstract: A well material distribution method includes obtaining at least one material-containing sack containing at least one well material, placing the at least one material-containing sack in an automatic sack cutting machine, opening the at least one material-containing sack and dispensing the at least one well material by operation of the automatic sack cutting machine and distributing the at least one well material from the automatic sack cutting machine directly into a mixing vessel configured to simultaneously handle a plurality of well materials. Well material distribution systems are also disclosed.

Abstract: A structural improvement for microwave-assisted high temperature high-pressure chemistry vessel systems is disclosed that among other advantages offers dynamic venting and resealing while a reaction proceeds and eliminates the risk of cross contamination associated with systems that use a common pressurized chamber. The improvement includes a relatively thin-walled disposable liner cylinder that includes one closed end and one open end defining a mouth, and a liner cap positioned in the mouth of the rigid liner cylinder for closing the rigid liner cylinder. The liner cap includes a depending column that engages the inside diameter of the rigid liner cylinder, and a disk at one end of the depending column having a diameter sufficient to rest upon the rigid liner cylinder without falling into the rigid cylinder liner so that the cylindrical liner cap can rest in the rigid liner cylinder at the mouth of the rigid liner cylinder.

Abstract: Useful apparatus for generating a gas, comprising an enclosure defining an internal space for containing a liquid capable of generating the gas by coming into contact with a catalyst, a catalytic system comprising first and second parts that together define a catalysis chamber for containing the catalyst and that are movable relative to each other between a closed position, in which the catalysis chamber is isolated from the internal space, and an open position, in which the catalysis chamber is in fluid communication with the internal space, so that, when the liquid and the catalyst are respectively contained in the internal space and in the catalysis chamber, in the open position, the liquid enters the catalysis chamber and the gas is generated by bringing the liquid into contact with the catalyst, an actuator connected to the catalytic system and configured to place the catalytic system in the open position and/or in the closed position, and a command unit for commanding the actuator.

Abstract: A reactor system for aromatization of higher hydrocarbons within a given temperature range T upon bringing a reactant stream including higher hydrocarbons into contact with a catalytic mixture. The reactor system includes a reactor unit arranged to accommodate a catalytic mixture. The catalytic mixture includes a catalyst material and a ferromagnetic material. The catalyst material is arranged to catalyze the aromatization of higher hydrocarbons. The ferromagnetic material is ferromagnetic at least at temperatures up to an upper limit of the given temperature range T, where the temperature range T is the range from between about 400° C. and about 700° C. or a subrange thereof. The reactor system also includes an induction coil arranged to be powered by a power source supplying alternating current, whereby the ferromagnetic material is heated to a temperature within the temperature range T by means of an alternating magnetic field.

Abstract: An ultra low density film and an ultra low density solid material are produced by the steps of providing a vessel, introducing two immiscible fluids into the vessel, adding nanocrystals to at least one of the two immiscible fluids, applying a shear force to the two immiscible fluids and the nanocrystals in a manner that causes the nanocrystals to self-assemble and form colloidosomes. The colloidosomes amass and evaporation of the two fluids produces dried colloidosomes. The ultra low density self-assembled colloidosomes are hollow self-assembled colloidosomes, which are formed into the ultra-low density film and the ultra-low density solid.

Abstract: An encapsulated perfume composition comprising a slurry of core-shell microcapsules in a suspending medium, the core comprising at least one perfume ingredient, and the shell comprising a thermosetting resin formed by the reaction of shell-forming materials selected from monomers, pre-polymers and/or pre-condensates, and wherein the encapsulated perfume composition comprises a polymeric stabilizer that is a reaction product of a polymeric surfactant, and a silane that contains functional groups capable of forming covalent bonds with the shell.

Abstract: The present invention relates to a method for preparing solid microcapsules, comprising the following steps, the addition, with stirring, of a composition C1, comprising at least one active ingredient, in a polymeric composition C2, the compositions C1 and C2 not being miscible with each other, wherein an emulsion (E1) is obtained comprising drops of composition C1 dispersed in composition C2. The addition, with stirring, of the emulsion (E1) in a composition C3, the compositions C2 and C3 not being miscible with each other, wherein a double emulsion (E2) is obtained comprising drops dispersed in composition C3. Applying shear to the emulsion (E2), wherein a double emulsion (E3) is obtained comprising drops of controlled size dispersed in composition C3; and polymerization of composition C2, wherein solid microcapsules are obtained dispersed in composition C3.

Abstract: A microarrayer for dispensing reagent onto a substrate, comprising a dispensing print head adapted to load reagent and provided with a plurality of nozzles to dispense said at least reagent on the substrate, wherein the print head is mounted in the microarrayer to allow the print head to move with respect to the substrate in subsequent, essentially, parallel print passes, wherein the print head moves during a first print pass between a first end of the substrate toward a second end of the substrate and during a subsequent printpass in the opposite direction, the microarrayer being characterised in that the microarrayer comprises a first camera adapted to move behind the print head during a print pass and a second camera adapted to move ahead of the print head during said print pass, the first and second camera being adapted to obtain images of the substrate.

Abstract: The invention relates to methods of tagging analytes in a sample.

Abstract: A miniaturized, automated method for controlled printing of large arrays of nano- to femtoliter droplets by actively transporting mother droplets over hydrophilic-in-hydrophobic (“HIH”) micropatches. The technology uses single or double-plate devices where mother droplets can be actuated and HIH micropatches on one or both plates of the device where the droplets are printed. Due to the selective wettability of the hydrophilic micropatches in a hydrophobic matrix, large nano- to femtoliter droplet arrays are created when mother droplets are transported over the arrays. The parent droplets are moved by various droplet actuation principles. Also, a method using two plates placed one top another while being separated by a spacer. One plate is dedicated to confirming and guiding parent droplets by using hydrophilic patches in a hydrophobic matrix, while the other plate contains HIH arrays for printing of the droplets.

Abstract: A structured packing arrangement for reducing vapor bypass in the gaps between the edges of structured packing elements or bricks and the packed distillation column wall is provided. The structured packing arrangement includes a high pressure drop shroud attached to portions of the perimeter of the structured packing elements and in the gap between the edge of the structured packing elements and the interior surface of the distillation column wall. The high pressure drop shroud urges the ascending vapor flowing at or near the edges of the structured packing elements to stay within the structured packing elements instead of escaping through the side of the structured packing toward the distillation column wall.

Abstract: A wiper band assembly suitable for use in packed distillation columns used in an air separation unit is provided. The wiper band assembly includes specially designed metal or metal alloy wiper tabs that are longer and thinner than conventional wiper tabs. The longer and thinner wiper tabs preferably have a thickness between about 0.05 mm and 0.25 mm and a length greater than about 50.0 mm. The physical dimensions and characteristics of the wiper tabs are selected to avoid permanent deformation during the installation process and provides continuous engagement with the interior surface of the packed column wall when the wiper tabs are exposed to pressure differentials typically seen in such packed distillation columns.

Abstract: Various embodiments of the present invention relate to reactive media including calcium. A reactive media includes a vitrified calcium silicate comprising reactive calcium. Various embodiments of the reactive media described herein are useful for removal of anionic impurities such as phosphate from water.

Abstract: Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a CO2 adsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed CO2 is disclosed.

Abstract: A method for preparing a nano-enabled activated carbon block, a nano-enabled activated carbon block produced by the method, a household water filtration system comprising the nano-enabled activated carbon block, and a method for filtering tap water using the household water filtration system are provided. The method includes contacting a solution including a metal(lic) precursor (e.g. a titanium compound and/or an iron compound and/or a zirconium compound) with activated carbon particles such that the solution fills pores of the activated carbon particles. The method further includes causing a metal (hydr)oxide (e.g. titanium dioxide and/or zirconium dioxide and/or iron oxide) to precipitate from the solution thereby causing metal oxide nanoparticles to become deposited within pores of the activated carbon particles. The method also includes preparing a nano-enabled activated carbon block from the activated carbon particles having metal oxide nanoparticles deposited within the pores thereof.

Abstract: A composite of polyurethane foam grafted with carbon nanofibers is described. This composite foam may be made by contacting and drying a polyurethane foam with a suspension of carbon nanofibers and then drying. Additional carbon nanofiber layers may be added with repeated contacting. The composite film has a high surface area of 276 m2/g and a hydrophobic character that may be exploited for separating an oil phase from water.

Abstract: Provided here are adsorbent compositions containing polyvinyl alcohol-bonded pellets of zeolite templated carbon. Also provided here are methods of producing adsorbent compositions by forming an aqueous mixture containing a binder, water, and zeolite-templated carbon; subjecting the aqueous mixture to a drying process to remove the water and form a dry mixture of the binder and the zeolite-templated carbon, and compacting the dry mixture of the binder and the zeolite-templated carbon to form the binder-bonded pellets of the zeolite templated carbon.

Abstract: A porous ceramic structure with low pressure loss and high catalytic performance is provided. The porous ceramic structure includes a porous structure body (i.e., honeycomb structure) composed primarily of cordierite, and manganese (Mn) and tungsten (W) that are fixedly attached to the honeycomb structure. Thus, pressure loss in the porous ceramic structure can be reduced, and an NO combustion temperature in the porous ceramic structure can be lowered. In other words, the aforementioned structure of the porous ceramic structure allows the porous ceramic structure to have low pressure loss and high catalytic performance.