Abstract:
A molten salt-type exhaust gas purification catalyst has, as a catalyst component, a first composite metal oxide of cesium and vanadium, and a sulfate containing cesium and an alkaline earth metal.
Abstract:
Humidifying and cleaning device of the present disclosure includes: centrifugal crushing unit that generates hypochlorous acid water micronized by a micronization operation for micronizing hypochlorous acid water stored in humidifier tank, and causes air flowing inside of the humidifying and cleaning unit to contain and release the hypochlorous acid water micronized by the micronization operation; and humidification controller that controls the micronization operation. Humidification controller is configured to perform a first treatment of draining the hypochlorous acid water stored in humidifier tank and supplying new hypochlorous acid water based on time information specified in advance during the micronization operation, that is, time information from when the micronization operation is started until a content of the hypochlorous acid contained in the hypochlorous acid water stored in humidifier tank becomes less than or equal to a reference content.