Abstract: In one embodiment, an apparatus for use with a tube structure (e.g., a bottle) includes a wall which extends between first and second ends. A first rod member has first and second ends with a mass attached to the first end and a support member pivotally attached to the second end for attachment about a tube opening. When the first rod member end and the mass are positioned within the tube, the support member is positioned in or about the opening, and the rod member and the mass are pivotally positioned and supported by the support member. The mass can be swung from the support member within the tube structure to strike opposing first and second parts of the wall.

Abstract: A balloon inflating device includes a gas mixing device fluidly connecting a supply of pressurized lighter-than-air (LTA) gas and a supply of a second gas to a balloon interface nozzle via a gas shut-off valve. The gas mixing device includes an outer pipe including a closed first end, an inner chamber, an inner pipe that projects through the closed first end of the outer pipe into the inner chamber, a first fluidic inlet and an outlet port. The inner pipe includes a second fluidic inlet into the inner chamber. The second fluidic inlet fluidly connects to the supply of LTA gas. The first fluidic inlet is proximal to the closed first end and fluidly connects to the supply of the second gas. A second end of the outer pipe fluidly connects to the outlet port. The outlet port fluidly connects via the gas shut-off valve to the balloon interface nozzle.

Abstract: A toy assembly is provided. The toy assembly may include a housing, a drive shaft mounted for rotation to the housing and defining an axis, a propeller with a central portion mounted for pivotal movement to the drive shaft, and two blades extending from the central portion to distal ends. The toy assembly may also include a circular safety ring extending about the drive shaft axis and secured to the distal ends, a motor secured to the housing and operably connected to the drive shaft, a power source in communication with the motor, a controller secured to the housing and configured to direct operation of the motor and power source, and a plurality of fins secured to the housing and extending away from the propeller. The toy assembly may further include a plurality of frame segments secured to the housing which may define an exo-skeletal frame. The exo-skeletal frame may define a region about the propeller.

Abstract: A children's entertainment structure or play gym includes a first support member, a second support member, an arched member coupled to the top of the first support member and the top of the second support member, and a mat reconfigurable between the first and second support members and beneath the arched member. Moreover, each of the support members has an upper opening and an internal passageway that is in connection with the upper opening that extends through at least a portion of the support member. The upper opening and the passageway are sized and configured to receive and transport balls to the bottom of the support members. The arched member includes a channel that is also configured to receive balls, while allowing them to roll towards the upper openings on the support members.

Abstract: Interactive blocks with sensors for collecting information about how tactile objects are interacted with and with one or more communication interface for sending the interaction data to one or more other device or platform for analyzing the interactivity, providing feedback to a user, and assessing manual ability and dexterousness, cognitive ability, memory and retention, providing challenges based on past performance, learning curve, etc.

Abstract: An element (10) of amusement articles includes: a flat body with two opposite faces (10a, 10b), a hub region (12), and a contour region (14) around the hub region (12), a plurality of coupling elements arranged facing one another along the contour region (14) in an alternating sequence of first coupling elements (18) and second coupling elements (16, 28), wherein the first coupling elements are in the form of swivel-coupling recesses (18) and the second coupling elements are chosen from between: a) toothed coupling sectors (16); and b) swivel-engagement heads (28) complementary to said swivel-coupling recesses (18), and complementary axial-engagement formations (20a, 20b) provided on one (10a) and the other (10b) of said opposite faces. The element (10) may be used as pendant or necklace, as component of a modular construction toy, possibly with different possibilities of connection, such as (e.g., radial and axial) coupling and swivel connection, as wheel (e.g.

Abstract: A toy that has a pair of wheel-like members mounted on a central axle. The central axle is a ferrous metal rod with a pair of small permanent or other magnets attached to each end of the rod. The two magnets are positioned so that like poles face each other in opposition and face the center of the rod. A non-ferrous support plate such as a flat piece of wood with a metal strip on its edges forms a track. The magnets associated with the axle causes the toy to achieve the effect of clinging to the metal strip portions of the track. When the device is placed on the track, it will roll along the track under the force of gravity while magnetically clinging to the track in any horizontal or vertical position of the track.

Abstract: Methods and systems for diffusing non-condensable gas are described. In an embodiment, a gas diffusion apparatus may be used to reduce non-condensable gas located adjacent to a condensation surface of a heat transfer system. The non-condensable gas may impede condensation at the condensation surface. The gas diffusion apparatus may include a plurality of blades arranged around a hub that is perpendicular to the condensation surface. The plurality of blades may rotate in a plane that is parallel or substantially parallel to the condensation surface. As the blades rotate, they generate gas flow that moves the non-condensable gas away from the condensation surface and imparts momentum on the vapor molecules heading toward the condensation surface. The blades may also contact the non-condensable gas layer and push them away from the condensation surface.

Abstract: An outlet well cover for use in an in-line grease interceptor is disclosed. The outlet well cover is fitted onto a hollow well extending upwardly from the bottom of the grease interceptor tank, and having an open top. The outlet well cover has at least one, and preferably two arms that extend outwards and define water passageways from the ends of the arms to the middle of the well. Water inflow openings at the ends of the arms allow clarified water to flow into the covered hollow well. The water inflow openings face generally downward to limit the amount of floating FOG material that can be drawn in through the openings. The well cover may also include a central bore adapted to receive a standard sized pipe. The pipe can be connected to an outlet from the tank.

Abstract: Apparatus and method to remove sediment from tubes of a tube settler assembly used in water clarification. A series of tube laterals extends beneath the area of the tube settler assembly and allows air to escape from air exit holes in the tube laterals. An air supply provides air to the tube laterals. The air released from one tube lateral may be released by a second tube lateral at a time different from the time of air released by the first tube lateral. The air entrained in liquid rises and dislodges sediment in the tubes of the tube settler assembly. A flow deflector may be located below the structure supporting the tube settler assembly to deflect rising air into the tube settler assembly which would otherwise be blocked from air entry.

Abstract: The present invention provides a fluidizing unit (1) for use in a vessel desanding system, comprising a discharge pipe (2) and a supply duct (3), the discharge pipe comprises a discharge inlet (4) and a discharge outlet (5), and the supply duct is formed by a housing (6) arranged around the discharge pipe defining an annular space (7) between an outer surface of said pipe and an inner surface of the housing, the supply duct comprises a pressurized liquid inlet (8) and a pressurized liquid outlet (9), wherein the pressurized liquid outlet, during use, is able to provide a pressurized liquid flow having a substantially elliptic cross-section.

Abstract: A filtering assembly includes a screen housing having two sidewalls and two end walls, defining a perimeter with a length and a width. The screen housing also includes a top face and a bottom face. A plurality of screen segments are positioned on the top face of the screen housing, such that the plurality of screen segments on the top face provide a screening surface area less than a total surface area of the top face, and a plurality of screen segments are positioned on the bottom face of the screen housing, such that the plurality of screen segments on the bottom face provide a screening surface area less than a total surface area of the bottom face. A total screening surface area of the filtering assembly is greater than the total surface area of the top face.

Abstract: An in-line or in situ filter is disclosed for filtering fluid flowing through a hydraulic system, and particularly an automotive hydraulic system. The filter has a magnetic base with a central opening at its outlet end and a seat with a central opening at its inlet. The base and the seat are joined by a cylindrical filter element made of a magnetically susceptible mesh screen material. A spring within the filter element biases a ball against the central opening of the seat normally sealing off the opening and forcing fluid to flow through the filter element to be filtered before exiting through the central opening of the base. If the mesh screen becomes clogged, backpressure forces the ball away from the seat against the bias of the spring to allow fluid to bypass the filter element and flow directly through the filter. In the process, ferrous debris entrained within the fluid flow continues to be captured by attraction to the magnetic base and the magnetized filter element.

Abstract: A filter apparatus is provided. The filter apparatus includes a filter element. The filter element includes filter media supported in a frame construction. The frame construction having opposed side panels and a rectangular border flange along a first end. The rectangular border flange projects outward from and extending around the opposed side panels. The first end is an inlet end or an outlet end of the filter element. The filter apparatus includes a filter frame adapter formed separately from the frame construction and secured to the frame construction to adapt the filter element for a different mounting interface. The filter frame adapter includes a pair of complimentary adapter flanges each projecting outward relative to one of the opposed side panels. The adapter flanges are at a second end that is opposite a first end. The second end is at the inlet end or the outlet end.

Abstract: A filter housing of a filter for air, water, fuel, oil or urea-water solution of an internal combustion engine, including: an inlet for fluid to be purified; and an outlet for purified fluid; a hollow filter element including a filter medium for filtering fluid, which surrounds an element interior space with respect to a filter axis, is exchangeably arranged so as to separate the inlet from outlet; wherein the filter housing has at least two housing parts, which can be partly be separated from one another in order to open up an installation opening of the filter housing for the hollow filter element; wherein at least one of the housing parts has connecting tab(s) and at least one other of the housing parts has a tab receptacle(s) adapted to a connecting tab(s) for the insertion of the at least one connecting tab for connecting the housing parts.

Abstract: A filtration system which uses a frame being a multi-sided tube positioned substantially horizontal. The tube is closed at a first end and supports a multitude of filters which filter the ambient air flowing into the interior of the multi-sided tube. A motor mechanism rotates the multi-sided tube around a horizontal axis while a fan draws air from the second end of said multi-sided tube, thereby pulling the ambient air through the filters. A pulsed air jet is directed at a bottom group of filters and periodically cleans the filters, allowing the debris to fall into a catch basin where an auger pulls the debris away.

Abstract: A filter element has a filter medium body with a plurality of filter segments that are joined to one another, of which at least two filter segments run adjacent and delimit an interposing intermediate space in which a support element is arranged for support on a housing component.

Abstract: Enhanced concentration of carbon dioxide, typically of carbon dioxide in the air, is advantageous in areas such as agriculture and horticulture involving raising of plants which utilize carbon dioxide for photosynthesis. Various carbon dioxide concentration apparatus have been developed, but the problems thereof are numerous. It is accordingly the purpose of the present invention to develop an adsorbent having exceptional adsorption of carbon dioxide, and to provide an apparatus for concentration of carbon dioxide in the air through the use thereof. Provided is a pressure swing concentration apparatus that uses ferrierite as the adsorbent, the ferrierite having been subjected to alkali treatment to give a pore diameter of 0.01-1 ?m and a pore volume of 0.1 mL/g or above.

Abstract: A gas cleaning unit for cleaning an effluent gas of at least one aluminium production electrolytic cell comprises a contact reactor in which the effluent gas is brought into contact with alumina, and a dust removal device for removing at least a portion of the alumina. The gas cleaning unit further comprises a wet scrubber in which the effluent gas is brought into contact with an absorption liquid containing water for removing further pollutants from the effluent gas. The wet scrubber is positioned at a point vertically higher than that of the dust removal device.

Abstract: A carbon dioxide absorbent is disclosed. The absorbent comprises organic amine, amino acid, and water, wherein said organic amine comprises tertiary amine and primary amine and/or secondary amine; and wherein amino acid is excess based on a stoichiometrical ratio of organic amine to amino acid in a reaction. A method for absorbing and desorbing carbon dioxide is further disclosed. In the absorbent system provided by the present disclosure, the conversion between primary (secondary) amine and (secondary) tertiary amine can be realized under the catalytic effect of amino acid with the changing of temperature, and carbon dioxide can be absorbed and desorbed effectively under a relatively low temperature.

Abstract: Provided are methods of separating one or more components from a fluid by using membranes and other materials comprising polymer graft nanoparticles arranged in a lattice structure. The disclosed compositions exhibit an increase in selectivity between two penetrants that is greater than the neat polymer selectivity for those penetrants. The compositions also exhibit an increase in selectivity between two penetrants with increasing permeability. Also provided are systems for effecting such separations, systems for agent detection, and additional methods for constructing separation components.

Abstract: A dehumidifier includes a first air distribution assembly connected to a process air inlet for receiving process air, and to a regeneration air outlet for exhausting regeneration air; and a second air distribution assembly connected to a process air outlet for delivering process air, and to a regeneration air inlet for receiving regeneration air. The dehumidifier includes multiple stationary modules connected in parallel between the air distribution assemblies. Each module contains desiccant and has opposing apertures for connecting to the air distribution assemblies. The air distribution assemblies are configured to cycle between a number of positions equal to the number of modules. In each position, the air distribution assemblies establish a regeneration air flow from the regeneration air inlet to the regeneration air outlet via one module, and a plurality of process air flows from the process air inlet to the process air outlet via each remaining module.

Abstract: The present invention relates to a system and a method for the concentration of slurry, especially mineral containing slurry. The invention provides a system comprising an electrophoresis unit and a separation unit, where the separation unit comprises a recipient, preferably of half cylindrical form, with adjusted flanks for separating the solid material or cake from the rotating anodes and a sliding carriage suitable for closing the recipient and stripping resting solid material from the flanks into the recipient before the solid material or cake is pressed out of the recipient by a piston.

Abstract: The method is used for performing a cleaning operation on a water filtration device having an inlet, a concentrate outlet, a permeate outlet, a filtration membrane between the inlet and the permeate outlet, the filtration membrane filtering water under pressure during a filtration operation of the water filtration device, and a recirculation line leading from at least one of the concentrate outlet and the permeate outlet back to the inlet. The method generally has a step of performing the cleaning operation including recirculating a solution along the recirculation line, the solution having at least water and one cleaning agent, the step of recirculating including maintaining a circulation of the solution along the entire length of the recirculation line.

Abstract: The present invention is directed to a method for modifying polymeric membranes to mitigate biofouling. More particularly, dopamine powder is dissolved in a buffer solution, and the membrane surface is exposed to the solution, resulting in the formation of a polydopamine thin film on the membrane. The surface of the polydopamine-modified membrane is then exposed to AgNO3 solutions, resulting in the formation of silver nanoparticles (AgNPs) on the membrane surface. The resulting membrane is expected to be resistant to biofouling for at least two reasons. First, polydopamine is extremely hydrophilic and thus membranes modified with polydopamine are resistant to bacterial attachment, which is the first stage of the biofouling process. Second, silver nanoparticles are antimicrobial and these nanoparticles on the membrane surface serve to inactivate depositing bacteria, and thus, retard the growth and proliferation of bacteria on the membrane.

Abstract: This invention relates to a system and a method for generating emulsified fuels for improved fuel efficiency of combustion devices with reduced specific fuel consumption rate and emissions, comprising at least a continuous phase fuel, a dispersed phase component, and an infrared radiation source whose infrared radiation spans at least a portion of 3-16 micrometers wavelength spectrum. In said system the continuous phase fuel and/or dispersed phase component are exposed to said infrared before or during emulsification. The continuous phase fuel may be selected from fossil fuels, biofuels, alcohol fuels, vegetable oils, or any combustible liquid fuels, while the dispersed phase component may be oxygen, hydrogen, nitrogen, carbon monoxide, methane, propane, butane, any petroleum gas, hydrogen peroxide, or water. The emulsified fuels can be used in combustion devices such as internal combustion engines, boilers, burners, or gas turbines.

Abstract: Disclosed is an apparatus for producing composite gas used for fabricating nanocomposite materials. The apparatus includes a pressure tank having a housing, which has an internal space and an upper opening, and a closing cap opening or closing the opening, a carrier mounted below the housing, a gas supply supplying inert gas into the pressure tank, a powder supply mounted to the closing cap to supply nano-powders into the pressurized inert gas tank, an exhaust part discharging the inert gas containing nano-powders supplied into the pressure tank, an upper rotor disposed to the inner side of the closing cap, and a lower fan mounted at a lower portion of the housing.

Abstract: A car wash chemical delivery device can include an inlet manifold having a water inlet, a plurality of water outlets, and an inlet chamber to receive water from the water inlet and distribute the water via the plurality of water outlets. The car wash chemical delivery device can also include a plurality of chemical injectors. Each chemical injector can be fluidly coupled to corresponding water outlets and have a chemical inlet to introduce a car wash chemical into the water to form a mixture. In addition, the car wash chemical delivery device can include an outlet manifold having a plurality of mixture inlets, a mixture outlet, and an outlet chamber. Each mixture inlet can be fluidly coupled to a corresponding one of the plurality of chemical injectors. The outlet chamber can receive one or more mixtures from the plurality of chemical injectors for delivery to a car wash tool.

Abstract: The processing machine (1) is adapted to carry a processing tool driven by a motor and includes a safety shield (4) adapted to at least partly shield the processing tool in relation to a user. The safety shield (4) is arranged displaceably away from its shielding position and a magnetically activatable safety arrangement (14) includes a safety switch (15) being operable between a passive state in which the motor (2) is allowed to operate and an activated state in which the motor is prevented from operation. The safety switch (15) is arranged to switch from its passive state to its activated state when the safety shield (4) is displaced away from its shielding position. At least one magnet (16) is arranged to hold said displaceable safety shield (4) in its shielding position and at the same time hold the safety switch (15) in its passive state.

Abstract: A (Liquid Mixer for mixing nail polish) is invention electronic machines that has the basic colors of nail polish liquid in containers, and can mix them to create many different polish color shade as user choose by computer software program interface . It can also make the three types of nail polish colors (normal/glitter/matt) in very short time, which will save time and money for the user.

Abstract: Device for use in a fluidized bed reactor includes a gas-solid separator communicated with an outlet of the fluidized bed reactor; a vertically arranged damper, a solid outlet of the gas-solid separator communicated with a lower region of the damper, a gas outlet of the gas-solid separator communicated with an upper region of the damper; a fine gas-solid separator, an inlet of the fine gas-solid separator communicated with the upper region of the damper, and a solid outlet of the fine gas-solid separator communicated with the lower region of the damper. Product from the fluidized bed reactor is fed into the preliminary gas-solid separator, most solid catalysts separated and fed into the lower region; the product entraining the rest catalysts is fed into the upper region, and into the fine gas-solid separator, the rest catalysts fed into the lower region; and final product is obtained from the fine gas-solid separator.

Abstract: Process for the fluidized-bed catalytic cracking of a weakly coking feedstock having a Conradson carbon residue equal to or less than 0.1% by weight and a hydrogen content equal to or greater than 12.7% by weight, comprising at least a step of cracking the feedstock, a step of separating/stripping the effluents from the coked catalyst particles and a step of regenerating said particles, the process being characterized in that at least one coking, carbonaceous and/or hydrocarbonaceous effluent having a content of aromatic compounds of greater than 50% by weight, comprising more than 20% by weight of polyaromatic compounds, is recycled to homogeneously distributed and weakly coked catalyst, before regeneration, in order to adjust the delta coke of the process.

Abstract: Described here is a metal-carbon composite, comprising (a) a porous three-dimensional scaffold comprising one or more of carbon nanotubes, graphene and graphene oxide, and (b) metal nanoparticles disposed on said porous scaffold, wherein the metal-carbon composite has a density of 1 g/cm3 or less, and wherein the metal nanoparticles account for 1 wt. % or more of the metal-carbon composite. Also described are methods for making the metal-carbon composite.

Abstract: A manufacturing system for producing polyolefin includes a polymerization reactor, a flash chamber, and a purge column. In certain embodiments, the purge column may receive a solids stream directly from the flash chamber. Further, the purge column may function as a feed tank for an extruder within an extrusion/loadout system. According to certain embodiments, the manufacturing system may be configured to consume less than 445 kilowatt-hours of energy per metric ton of polyolefin produced based on consumption of electricity, steam, and fuel gas.

Abstract: A method of disposing materials in an emulsion (301) into wells (302) of a device member (304) is disclosed. The method comprises generating the emulsion having droplets of a specific mass and size from a fluid sample and a carrier fluid, the fluid sample being immiscible with the carrier fluid, the fluid sample comprising the materials and each droplet having at least one copy of the materials, wherein the specific mass and size of the droplets enable a force acting on the droplets to speed up the settling of at least a portion of the droplets into some of the wells.

Abstract: Apparatus and methods for using a flow cell array are provided herein. A method includes determining placement of one or more reaction sites on a first component; providing a material for the one or more reaction sites in one or more surface channels of the first component; connecting the first component to a second component to form an array, wherein the one or more surface channels of the first component connect the one or more reaction sites with one or more vias, and wherein the second component comprises the one or more vias connected to multiple sub-surface channels; and aligning the one or more surface channels of the first component with the one or more vias of the second component to form a connection between the first component and the second component.

Abstract: An arc reactor and a process for the production of nanoparticles are disclosed. The reactor has a crucible in a gas-tight housing having a carrier gas inlet and a spaced-apart carrier gas outlet. The carrier gas inlet is directed to the side of the crucible opposite the crucible opening. The inlet can be disposed below the crucible and directed to the side of the crucible opposite the crucible opening. The carrier gas outlet is disposed above the crucible and exits the housing above the crucible. The carrier gas outlet is formed by a hood disposed at a distance above the crucible, which is separated from the crucible and formed by an exhaust pipe that connects the hood to the carrier gas outlet of the housing. The reactor housing has at least one inlet for cooling gas. This can be directed at an interstice formed between the crucible and the hood.

Abstract: A lean MEG stream having a first pH level is contacted with a CO2-rich gas stream to yield a lean MEG product having a second different and lower pH level preferably in a range of 6.5 to 7.0. The system and method can be readily incorporated into a slipstream MEG recovery package, with a source of the lean MEG stream being a MEG regeneration section of the package. The CO2-rich gas could be a vented CO2 stream from the MEG reclamation section of the package. Unlike hydrochloric and acetic acid overdosing, CO2 overdosing of the lean MEG stream does not lead to rapid acidification of the lean MEG product to be stored or injected.

Abstract: The process and apparatus of the present invention selectively hydrogenates a heavier olefinic naphtha stream in an upstream catalyst bed and the hydrogenated effluent and a lighter olefinic naphtha stream in a downstream catalyst bed. The heavier di-alkenes are less re-active and are contacted with more hydrogenation catalyst than the lighter di-alkenes which are more re-active.

Abstract: In a process for producing para-xylene, a feed stream comprising C6+ aromatic hydrocarbons is separated into a C7— aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream, and a C9+ aromatic hydrocarbon-containing stream. The C7? aromatic hydrocarbon-containing stream is contacted with a methylating agent to convert toluene to xylenes and produce a methylated effluent stream. Ethylbenzene is removed from the C8 aromatic hydrocarbon-containing stream, para-xylene is recovered from the ethylbenzene-depleted C8 aromatic hydrocarbon-containing stream and the methylated effluent stream in a para-xylene recovery section to produce a para-xylene depleted stream, which is then contacted with a xylene isomerization catalyst under liquid phase conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream.

Abstract: A catalyst structure is provided in a reaction-side flow passage of a reactor through which a fluid as a reaction object flows. The catalyst structure includes: a plurality of pillar-shaped pin rods extending in a direction intersecting with a flow direction of the fluid in the reaction-side flow passage; and a catalyst carried on surfaces of the pin rods to promote a reaction of the fluid.

Abstract: A methane microporous carbon adsorbent comprising a thermally-treated CVD carbon having a shape in the form of a negative replica of a crystalline zeolite has a BET specific surface area, a micropore volume, a micropore to mesopore volume ratio, a stored methane value and a methane delivered value and a sequential carbon synthesis method for forming the methane microporous carbon adsorbent. Introducing an organic precursor gas for a chemical vapor deposition (CVD) period to a crystalline zeolite that is maintained at a CVD temperature forms the carbon-zeolite composite. Introducing a non-reactive gas for a thermal treatment period to the carbon-zeolite composite maintained at a thermal treatment temperature forms the thermally-treated carbon-zeolite composite. Introducing an aqueous strong mineral acid mixture to the thermally-treated carbon-zeolite composite forms the methane microporous carbon adsorbent.

Abstract: A zinc titanate reactive adsorbent comprising multiphase, polycrystalline nanofibers comprising ZnTiO3, ZnO, TiO2, and Zn2TiO4.

Abstract: A catalyst for steam reforming. The catalyst comprises an active site of NiCu or NiCuZn, from about 15 wt % to about 25 wt % of the catalyst, a composition comprising at least one promoter and at least one support modifier, from about 5 wt % to about 30 wt % of the catalyst, and a support.

Abstract: New sulfided metal catalysts are described, containing a metal X selected from Ni, Co and mixtures thereof, a metal Y selected from Mo, W and mixtures thereof, an element Z selected from Si, Al and mixtures thereof, and possibly an organic residue, obtained by the sulfidation of mixed oxide precursors, also new, having general formula (A) Xa Yb Zc Od.

Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.

Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.

Abstract: A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a second component comprising a second substrate containing an ammonia oxidation catalyst, wherein said ammonia oxidation catalyst comprises a small pore molecular sieve supporting at least one transition metal; and (b) an oxygen-containing gas input disposed between the components. For example, a CHA Framework Type small pore molecular sieve may be used. A method for reducing NH3 emission includes introducing an oxygen-containing gas into a gas stream to produce an oxygenated gas stream; and exposing the oxygenated gas stream to an NH3 oxidation catalyst to selectively oxidize at least a portion of the NH3 to N2. The method may further include the step of exposing a rich burn exhaust gas to a three-way catalyst to produce the gas stream comprising NH3.

Abstract: This invention relates generally to enantiomerically enriched C—H activated ruthenium olefin metathesis catalyst compounds which are stereogenic at ruthenium, to the preparation of such compounds, and the use of such catalysts in the metathesis of olefins and olefin compounds, more particularly, in the use of such catalysts in enantio- and Z-selective olefin metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.

Abstract: The present invention is directed to methods of enhancing the catalytic activities of 8-MR zeolites, the methods comprising treating a precursor 8-MR zeolite that has been prepared without the use of an organic structure directing agent and having an Si/Al ratio of less than 5, with high temperature steam for a period of time sufficient to extract at least a portion of the aluminum from the precursor zeolite framework to form a steam-treated zeolite having an Si/tetrahedral Al ratio of greater than 5, wherein the steam has a temperature in a range of from about 350° C. to about 850° C. The compositions produced by these methods and their use in catalytic reactions are also provided.