摘要:
The invention concerns the use of a composition based on TiO2 as a catalyst for hydrolyzing COS and/or HCN in a gas mixture; said composition comprising at least 1% by weight of at least one sulphate of an alkaline-earth metal selected from calcium, barium, strontium and magnesium.
摘要:
Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concentration of airborne biologicals. Sensors based on regenerative collection surfaces may be incorporated in many networks for applications such as building automation.
摘要:
Functionalized hydrophobic aerogel/solid support structure composites have been developed to remove metals and organic compounds from aqueous and vapor media. The targeted metals and organics are removed by passing the aqueous or vapor phase through the composite which can be in molded, granular, or powder form. The composites adsorb the metals and the organics leaving a purified aqueous or vapor stream. The species-specific adsorption occurs through specific functionalization of the aerogels tailored towards specific metals and/or organics. After adsorption, the composites can be disposed of or the targeted metals and/or organics can be reclaimed or removed and the composites recycled.
摘要:
The invention relates to a hood (10) for a filter ventilator, which is connected to an outside wall (40) of a space to be ventilated, in particular the outside wall (40) of a control box, circuit housing, or case for various kinds of devices, and which comprises an air inlet (11), an air outlet (12), a filter (20) mounted in the air outlet and a maintenance portal (13), in particular for exchanging the filter (20). In order to enable effortless and rapid exchange of the filter, the maintenance portal (13) is made such that it can be closed by at least one pivotable flap 30. (FIG. 1)
摘要:
A method and apparatus for continuously removing siloxanes and H2O from a waste gas stream containing H2O and siloxanes comprises cooling the waste gas stream in a primary heat exchanger to a temperature of greater than 32null F. to condense a portion of the H2O from the waste gas stream, chilling the waste gas stream in a first gas-refrigerant heat exchanger to a temperature of about null20null F. to condense the siloxanes and freeze the H2O, and then directing the cooled waste gas stream from the primary heat exchanger to a second gas-refrigerant heat exchanger while the first gas-refrigerant heat exchanger is defrosted to remove frozen H2O and siloxanes.
摘要:
An aerosol delivery apparatus is used to deliver an aerosol into a reaction chamber for chemical reaction to produce reaction products such as nanoparticles. A variety of improved aerosol delivery approaches provide for the production of more uniform reaction products. In preferred embodiments, a reaction chamber is used that has a cross section perpendicular to the flow of reactant having a dimension along a major axis greater than a dimension along a minor axis. The aerosol preferably is elongated along the major axis of the reaction chamber.
摘要:
The invention provides a combination of a kit for air filtration and an air-conditioning unit, including an air-conditioning unit of the type installed inside a room, having a front, back, top, bottom and side walls, and a compartment having an air intake port, air outlet aperture and means for engaging with a wall of the air-conditioning unit, so as to form a single body when engaged, the compartment being sized to enclose a power source and an air filter attached at its air inlet to the port for propelling filtered air through said aperture into the air-conditioning unit.
摘要:
The present invention relates to a purification method of poisonous gas comprising spraying an aqueous solution dispersed with titanium dioxide photo-catalyst having 1 to 500 nm particle size to the poisonous gas including harmful and offensive odor generating materials and, at the same time, radiating light from a light source onto the poisonous gas to execute a photo-decomposition of the harmful and offensive odor generating materials. The purification method of the present invention can remove hydrophobic organic materials and offensive odor generating materials in improved clearance rates and has excellent applicable and economical benefits sufficient to enhance working condition of small manufacturing firms including dye works and/or processing industry.
摘要:
This invention relates to the use of a catalyst for reducing the quantity and/or size of particles in the exhaust gases of a diesel engine by means of a zeolite-containing catalyst having acidic properties.
摘要:
This is an apparatus that disinfects room air by destroying common allergens such as mold spore, dust mites, microbes, and VOCs, as well as dangerous substances, both organic and inorganic. Using photocatalytic oxidation, it places a continuing supply of the oxygen radical hydroxyl into a local environment. This helps prevent the spread of infectious diseases by destroying infectious microbes, contained in the droplet nuclei of human and animal respiration, as they float in the air. This apparatus also removes carbon monoxide, radon and other contaminants from the air by turning them into such harmless substances as carbon dioxide and water. It uses little energy, needs no filters, and operates silently.