摘要:
A method of adhering a particulate material, such as a hydrocarbon adsorbent material and/or a catalytic material, to a plastic surface, and products comprising the adhered material are disclosed.
摘要:
A device and method thereof for the indoor-air purification that utilizes photocatalytic oxidation and ultraviolet lights in a fluidized bed to remove pollutants. The fluidized bed contains ultraviolet lights that are immersed within the bed for direct access to ultraviolet-irradiation. Fluidization aids such as vibration and static mixers may be employed to allow for better circulation of the catalyst bed to increase reaction rates. Photocatalytic oxidation within the device uses photocatalyst particles that were designed to be more active, fluidize better and have ten-fold higher attrition-resistant qualities than current industry standards. The device provides for the most efficient use of and longevity of ultraviolet light which reduces operating costs.
摘要:
A method for hydride gas purification uses materials having at least one lanthanide metal or lanthanide metal oxide. The method reduces contaminants to less than 100 parts per billion (ppb), preferably 10 ppb, more preferably 1 ppb. The material can also include transition metals and transition metal oxides, rare earth elements and other metal oxides. The invention also includes materials for use in the method of the invention.
摘要:
A support system for a fragile substrate of an exhaust gas treatment device includes a microporous, inorganic insulating layer, which directly or indirectly engages at least a portion of the fragile substrate: and a flexible fibrous mounting mat which directly or indirectly engages at least a portion of said fragile substrate. The support system may support the fragile substrate of a catalytic converter, a diesel particulate trap filter, a selective catalyst reduction unit, or a NOx trap.
摘要:
An activated carbon-metal oxide matrix is disclosed. The activated carbon-metal oxide matrix may by obtained by a method including the steps of: preoxidizing a carbon material, grinding the preoxidized carbon material; mixing the ground preoxidized material with a metal oxide to form a carbon mixture; extruding the carbon mixture; carbonizing and activating the extrudate. The activated carbon-metal oxide matrix may be used to remove odorous compounds, acidic gases, and volatile organic compounds from a gas.
摘要:
Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the metal chlorite in the presence of water vapor, but does not react with the metal chlorite in the substantial absence of liquid water or water vapor to produce chlorine dioxide gas in a sustained amount of from about 0.001 to 1,000 ppm.
摘要:
An apparatus includes a housing into which a hazardous gas is introduced. A sleeve in the housing includes a perforate segment into which the gas is discharged along with flows of oxygen delivered from sleeve mounted nozzles. Particles forming in a sleeve defined mixing zone gravitate toward a first collection site within the housing. Within the housing are radially spaced tubular members through which the gas and oxygen mixture flows in a serpentine path with provision for the collection of particles precipitating from the flow adjacent one end of the housing. Metallic fibers render any gas collection in the housing inert. Provision is made for delivering, in the alternative, a pressurized air flow to the sleeve for oxidizing the hazardous gas flow utilizing ambient air. A diffuser plate imparts current to the ambient air discharged into the sleeve.
摘要:
A method for treating cullet before use as a raw material in a glass manufacturing process is disclosed. The method includes providing a bed of cullet; passing hot gases through the bed, the quantity and temperature of gases being sufficient to pyrolyze odor creating impurities within the bed of cullet; entraining volatile products of pyrolysis into gases leaving the moving bed; heating the gases leaving the bed to oxidize odor creating impurities; and discharging the gases to the atmosphere. The apparatus includes a housing containing a moving bed of cullet; a source of hot gases which permits the gases to pass through the moving bed of cullet to pyrolyze odor creating impurities within the cullet and entrain volatile products of pyrolysis into gases leaving the moving bed; and an incinerator to remove odor creating impurities from gases leaving the moving bed.
摘要:
An air cleaning filter having a carrier made of activated carbon fibers in the form of a web which supports at least one kind of chemical agent selected from the group consisting of (a) an alkali agent selected from a hydroxide or carbonate or an alkali metal, (b) an acidifying agent selected from acid aluminum phosphate or phosphoric acid, and (c) an oxidizing agent composed of two compounds, i.e. active manganese dioxide resulting from an alkali permanganate and an alkali iodate, or which supports combined chemicals of (a) the alkali agent and (c) the oxidizing agent, or combined chemicals of (b) the acidifying agent and (c) the oxidizing agent, wherein one or both surfaces of the web are covered with a nonwoven fabric to make an integrated filter.