Abstract: Provided is an ammonia decomposition catalyst that exhibits high durability while maintaining high ammonia decomposition activity and low emissions of nitrogen oxides, for example, even under an atmosphere with a steam concentration of about 10% by volume. An ammonia decomposition catalyst capable of decomposing ammonia contained in an exhaust gas, the catalyst comprising an inorganic oxide loaded with an alloy containing Pt and Pd, and a zeolite.

Abstract: A method for purifying a gas inside a polymer film production furnace with the use of the purification catalyst is provided. A purification catalyst for a gas inside a polymer film production furnace, contains a mixed oxide composed of a manganese-based oxide containing manganese and potassium and having a cryptomelane structure, and copper oxide. A method for purifying a gas inside a polymer film production furnace, includes a step 1 of bringing hot air containing volatile and/or sublimable organic substances, generated during production of a polymer film by the polymer film production furnace, into contact with the catalyst provided inside or outside the furnace, at a temperature in the range of 200 to 350° C. to decompose the organic substances oxidatively, and a step 2 of refluxing all or a part of a resultant decomposition gas to the polymer film production furnace.

Abstract: The present disclosure relates to an air purification filter including a substrate, and an enzyme and glycine supported on the substrate, wherein the enzyme includes at least one enzyme selected from the group consisting of ?-1,3-glucanase, chitinase, lysozyme, protease, glycosidase, ?-galactosidase, endo-?-N-acetylglucosaminidase and endolysine.

Abstract: Provided is an ammonia decomposition catalyst that exhibits high durability while maintaining high ammonia decomposition activity and low emissions of nitrogen oxides, for example, even under an atmosphere with a steam concentration of about 10% by volume. An ammonia decomposition catalyst capable of decomposing ammonia contained in an exhaust gas, the catalyst comprising an inorganic oxide loaded with an alloy containing Pt and Pd, and a zeolite.

Abstract: A filtering material for air filters, the filtering material including a base material; and an enzyme-containing antibacterial material, an inorganic anti-allergenic material, and a fungal inhibitor, all being supported on the base material.

Abstract: A method for purifying a gas inside a polymer film production furnace with the use of the purification catalyst is provided. A purification catalyst for a gas inside a polymer film production furnace, contains a mixed oxide composed of a manganese-based oxide containing manganese and potassium and having a cryptomelane structure, and copper oxide. A method for purifying a gas inside a polymer film production furnace, includes a step 1 of bringing hot air containing volatile and/or sublimable organic substances, generated during production of a polymer film by the polymer film production furnace, into contact with the catalyst provided inside or outside the furnace, at a temperature in the range of 200 to 350° C. to decompose the organic substances oxidatively, and a step 2 of refluxing all or a part of a resultant decomposition gas to the polymer film production furnace.

Abstract: A high durability catalyst for decomposing volatile organic compounds (VOCs) or sublimable organic substances, generated inside a polymer film production furnace, at a high conversion rate is provided. A method for purifying a gas inside a polymer film production furnace with the use of the catalyst is also provided. Provided are a purification catalyst for a gas inside a polymer film production furnace, which contains a mixed oxide composed of a manganese-based oxide containing manganese and potassium and having a cryptomelane structure, and copper oxide; and a method for purifying a gas inside a polymer film production furnace, comprising a step 1 of bringing hot air containing volatile and/or sublimable organic substances, generated during production of a polymer film by the polymer film production furnace, into contact with the catalyst provided inside or outside the furnace, at a temperature in the range of 200 to 350° C.

Abstract: An ammonia decomposition catalyst to be used for an ammonia exhaust gas having a high moisture content; and a method for purifying the ammonia exhaust gas. An ammonia decomposition catalyst for treating an ammonia exhaust gas containing moisture, the catalyst comprising: a lower layer having a noble metal, an inorganic oxide, phosphorus, and a first proton type zeolite or a first ion exchange type zeolite ion-exchanged with Cu, Co or Fe ions; and an upper layer provided on the lower layer and having a second proton type zeolite or a second ion exchange type zeolite ion-exchanged with Cu, Co or Fe ions.

Abstract: A catalyst composition of excellent silicon-resistant performance, and a catalyst containing the catalyst composition are provided. The catalyst composition is one for purifying an exhaust gas containing an organic compound, the catalyst composition comprising at least one inorganic oxide (component 1) selected from the group consisting of alumina, zirconia, titania, silica, ceria, and ceria-zirconia, each having a noble metal supported thereon; ? zeolite (component 2) having supported thereon at least one metal selected from the group consisting of Fe, Cu, Co and Ni; and a Pt—Fe composite oxide (component 3).