The present invention discloses an air purifier with a photocatalyst, including an air intake structure and an air discharge structure. The air intake structure is provided with a purification cavity, and a connection seat is provided in the purification cavity and is provided with a photocatalyst purification member detachably mounted to the connection seat. The air purifier with a photocatalyst of the present invention has a simple structure and a rational design, and demounting and mounting operations of photocatalyst purification member are simple, easy and quick, thereby effectively improving the demounting and mounting efficiency of the photocatalyst purification member.

Provided is a cooking apparatus including: a main body; and a ventilator comprising a ventilator body including an inlet configured to inhale air containing oil mist generated in a cooking process using a heating device, a blower configured to blow the inhaled air from the inlet; and an oil mist filter positioned inside the ventilator body, and configured to remove the oil mist by filtering the oil mist from the inhaled air.

Provided are a catalyst structure for ozone decomposition including a support containing a porous inorganic material, and an α-MnO.sub.2 catalyst located on at least a portion of inner pores and a surface of the support, an air-cleaning method using the same, and an air-cleaning device and an air-cleaning system each including the catalyst structure for ozone decomposition.

A carbon processing system comprises an air mover and a multi-stage reactor. The multi-stage reactor processes ambient air and generates carbon dioxide and generates exhausted gas released to ambient air. In operation, air contacts the base solution via the air mover. The air reacts with the base solution thereby generating a base solution having carbon dioxide and generating exhaust (absorption reaction). Next, the exhaust is released from the reactor. Next, heat is applied to the base solution having carbon dioxide thereby generating carbon dioxide and generating a base solution without carbon dioxide (desorption reaction). The base solution without carbon dioxide generated after applying heat is reusable in processing new air. The absorption reaction and desorption reaction are reversible reactions resulting in regeneration of the base solution into its form prior to contact with the air yielding high scalability and less processing volume as required by many conventional carbon processing techniques.

Provided are a method for producing a purified gas, which, when a valuable material is generated from a waste-derived raw material gas, can efficiently remove a phase transitioning impurity contained in the raw material gas, a method for producing a valuable material, a gas purification apparatus, and an apparatus for producing a valuable material. A method for producing a purified gas, comprising removing an impurity in a waste-derived raw material gas, the method comprising: a solid-phased impurity removing step S11 of passing the raw material gas through a phase transitioning impurity removing unit to remove a solid-phased phase transitioning impurity in the raw material gas; and an impurity removing step S12 of passing the raw material gas after the solid-phased impurity removing step through a pressure swing adsorption apparatus combined with a vacuum pump to remove an impurity in the raw material gas.

The present disclosure relates generally to a system for removing fuel from a mixture of air and fuel vapor in an ullage space of an aircraft fuel tank. The system includes a compressor for drawing the mixture of air and fuel vapor from the ullage space and directing the mixture of air and fuel vapor through a heat exchanger where the mixture of air and fuel vapor is cooled. The system also includes a turbine configured to be driven by the mixture of air and fuel from the heat exchanger. Power from the turbine can be transferred back toward the compressor to assist in driving rotation of the compressor. The system further includes a separator for receiving the mixture of air and fuel vapor from the turbine and separating at least some liquid fuel from the mixture of air and fuel vapor. From the separator, a separated liquid fuel and a mixture of air and fuel vapor with reduced concentration of fuel vapor are returned to the aircraft fuel tank.

A nickel-based MOF film photocatalyst grown in-situ on a foamed nickel surface, a preparation method therefor, and an application thereof. The nickel-based MOF film photocatalyst grown in-situ on a foamed nickel surface is prepared by first immersing foamed nickel in a diluted acid and performing ultrasonic processing, then cleaning the foamed nickel with deionized water, and drying the foamed nickel to obtain surface-activated foamed nickel; immersing the surface-activated nickel foam in a mixture of an imidazole compound, sodium formate, and a solvent and reacting at 100° C. to 180° C. to obtain an unactivated nickel-based MOFs film on the surface of the foamed nickel, and after cooling to room temperature, removing same and soaking in an organic solvent to activate, and then drying the obtained product. The film photocatalyst synthesized in-situ on the foamed nickel can increase the specific surface area of the material to facilitate the adsorption and diffusion of VOCs, and can expose more catalytic sites, so that the VOCs can be effectively degraded under the action of sunlight.

A filtering device for incorporation into an architectural façade panel includes a tubular channel having an inlet section, an outlet section, and a constricted section interposed between and in fluid communication with the inlet section and outlet section. A filtering component is attached to the tubular channel or integrated into a material forming the tubular channel. The filtering device also includes an attachment component for attachment of the filtering device to an architectural structure. The attachment component is adapted to orient the tubular channel with the inlet section positioned to face predetermined prevailing winds when the filtering device is attached to the architectural structure.

A method for treating arsenic-containing flue gas is disclosed. In the method, the arsenic-containing flue gas is subjected to a dry pre-dedusting treatment, and the dedusted flue gas is pre-cooled and then introduced into a vortex quenching system. The arsenic-containing flue gas is divided into high-temperature flue gas and low-temperature flue gas through the vortex quenching system. The outlet temperature of the low-temperature flue gas is dropped below the desublimation temperature of gaseous arsenic trioxide. The low-temperature flue gas is subjected to a gas-solid separation to obtain solid arsenic trioxide and treated flue gas.

This application provides an air purifier, which includes a casing, a fan, a filter, and a purification module. The filter is in a cylindrical shape. The purification module includes an inner filter for purification of harmful gases in air. The inner filter includes an inner filter cylinder and a purification plate, the purification plate and/or the inner filter cylinder are honeycomb-like or reticulate, and the inner filter cylinder is disposed in the filter. In the present application, the air purifier is provided with an inner filter to remove harmful gases such as formaldehyde in the air, and the purification plate and/or inner filter cylinder are honeycomb-like or reticulate to reduce wind resistance of the inner filter and reduce air resistance, thereby reducing the fan speed and noise.