A built-in apparatus and method for treating air including a housing with an air inlet and an air outlet. An air mover positioned near the air outlet is configured to draw the air through the air inlet. The housing encloses an air treatment zone, such as including an oxidizing zone, and an ozone removal zone positioned downstream of the air treatment zone and oxidizing zone. The air treatment zone includes UV light and/or ozone that partially oxidizes the chemical contaminants in the air treatment zone. A catalyst in the oxidizing zone oxidizes elements within the air treatment zone. The ozone removal zone includes a second, different catalyst material. A UV bulb that may or may not generate ozone is positioned within or downstream of the first and/or second catalyst materials to assist catalyst oxidation and/or self-clean the apparatus.

An object of the present invention is to provide a new frameless catalytic thermal oxidation device capable of treating concentrations of harmful materials including NOx at a low temperature. Further, another object of the present invention is to provide a frameless catalytic thermal oxidation device capable of minimizing the occurrence of THC and minimizing a risk of accidents and environmental pollution which may occur in maintenance operations. According to the objects, the present invention provides a cartridge-type thermal oxidation device capable of being separated for maintenance, wherein a cartridge internal structure is configured so that the time while the material to be treated stays in a zone with the catalyst is increased, and a member capable of dropping and collecting powder generated by thermal oxidation reaction is configured.

The present invention discloses methods for extracting and recycling ammonia in MOCVD processes by FTrPSA. Through pretreatment, medium-shallow temperature PSA concentration, condensation and freezing, liquid ammonia vaporization, PSA ammonia extraction, and ammonia gas purification procedures, ammonia-containing exhaust gases from MOCVD processes are purified to meet the electronic-level ammonia gas standard required by the MOCVD processes, so as to implement recycling and reuse of the exhaust gases, where the ammonia gas yield is greater than or equal to 70-85%. The present invention solves the technical problem that atmospheric-pressure or low-pressure ammonia-containing exhaust gases in MOCVD processes cannot be returned to the MOCVD processes for use after being recycled, and fills the gap in green and circular economy development of the LED industry.

The invention discloses a visible light responsive titanium dioxide nanowire/metal organic skeleton/carbon nanofiber membrane and preparation method and application thereof. A CNF (Carbon Nano Fiber)/TiO.sub.2 nano-wire/MIL-100 (represented as CTWM) membrane material is prepared and an MIL-100 material is used for adsorbing waste gas to enhance the photocatalytic effect of titanium dioxide on the membrane material; a CNF/TiO.sub.2/MIL-100 membrane catalyst sufficiently utilizes the adsorption capability of MIL-100 on the waste gas, the photocatalytic degradation performance of the TiO.sub.2 and high electrical conductivity of CNF to effectively prolong the service life of photoelectrons and promote the photocatalytic activity of the photoelectrons.

Described is related to nano-structured composite materials for removing harmful chemical air pollutants and odors from the air to prevent people from breathing in disease-causing chemicals and provide them with clean indoor air. The nano-structured composite materials comprise nano-catalysts embedded in the pores of nano-structured substrate materials selected from the group consisting of nano-porous carbon, nano-porous rare earth oxide, nano-porous zeolite, nano-porous alumina and nano-porous silica. The nano-scale synergy of nano-catalysts and nano-structured substrate materials provides effective air filtration materials for the complete trapping and elimination of the full spectrum of chemical air pollutants including both organic and inorganic compounds and odors for indoor spaces, which HEPA or activated carbon filters cannot achieve.

A built-in apparatus and method for treating air including a housing with an air inlet and an air outlet. An air mover positioned near the air outlet is configured to draw the air through the air inlet. The housing encloses an air treatment zone, such as including an oxidizing zone, and an ozone removal zone positioned downstream of the air treatment zone and oxidizing zone. The air treatment zone includes UV light and/or ozone that partially oxidizes the chemical contaminants in the air treatment zone. A catalyst in the oxidizing zone oxidizes elements within the air treatment zone. The ozone removal zone includes a second, different catalyst material. A UV bulb that may or may not generate ozone is positioned within or downstream of the first and/or second catalyst materials to assist catalyst oxidation and/or self-clean the apparatus.

A method for simultaneous removal of NO and carbonic particles and inorganic dust from flue gases in a reactor with a catalyst for direct decomposition of nitric oxide located on a metallic monolith, includes tangential introduction of flue gases to the reactor circumference. Flue gases flow rotationally and downwards in the reactor in contact with an undulating surface of metallic foil located on an inner wall of the reactor chamber and in contact with the catalyst on a spiral band falling to the lower part of the reactor, and next flue gases jet direction counter-currently to a cylindrical inner chamber containing slices of the monolithic catalyst disturbing laminar flow of the flue gases jet. The reactor arrangement provides for simultaneous removal of NO and carbon particles and inorganic dust from flue gases.

A cooking apparatus and method for use of the same are disclosed that utilize forced convection and radiant heating cooking. In one embodiment, the cooking apparatus includes an oven housing defining a cooking chamber, a circulation chamber, and a catalyst chamber. The catalyst chamber is superposed to the circulation chamber and the circulation chamber is superposed to the cooking chamber. Heating elements are located in at least one of the cooking chamber and the circulation chamber. An airflow circulation loop is located between the cooking chamber and the circulation chamber. An exhaust airflow path is provided from the circulation chamber to the catalyst chamber to an exterior of the oven housing. A fan subassembly is located within the oven housing and the fan subassembly circulates convection air along the airflow circulation loop with a portion of the convection air being diverted into the exhaust airflow path.

A deodorization and dehumidification device including an accommodation room in which an object is accommodated, a deodorizer including a deodorization route provided outside the accommodation room to deodorize air in the accommodation room and supply the deodorized air to the accommodation room, and a dehumidifier including a dehumidification route provided outside the accommodation room and separated from the deodorization route to dehumidify air in the accommodation room and supply the dehumidified air to the accommodation room.

An LED panel for filtering elements for fluids, in particular air, comprising a supporting element having a main lying surface and supporting a plurality of LEDs. The LED the panel also comprises electrical connection means for the connection of the LEDs to an electricity supply source. The supporting element has a grid-shaped configuration having a plurality of through openings configured to allow the passage of a flow of the fluid through the main lying surface of the LED panel.