PLATINUM-SUPPORTED CATALYST, AIR CLEANING SYSTEM AND AIR CLEANING METHOD

• Main Authors: YAMAMOTO TETSUSHI, SAITO YUJI, HORATA HIROFUMI, WAKAYAMA YOSHIHIDE, TAKI HIRONORI, ICHIHARA SANEMARE
• Format: Patent
• Language: English; Japanese
• Published: 27.01.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

To provide a novel platinum-supported catalyst, and an air cleaning system and an air cleaning method using the platinum-supported catalyst.SOLUTION: Provided are: a platinum-supported catalyst in which platinum nanoparticles with a particle size of 10 nm or less are uniformly supported on the surface of a porous carrier with an apparent volume of 5 mm3 or more; an air cleaning system that has a first cleaning unit including a platinum-supported catalyst that converts chemical substance in the air into intermediate product, and a second cleaning unit including a photocatalyst that decomposes the intermediate product into a final product containing carbon dioxide and water; and an air cleaning method comprising a step of converting chemical substance in the air into another compound using a platinum-supported catalyst.SELECTED DRAWING: Figure 2 【課題】新規な白金担持触媒と、この白金担持触媒を利用した空気浄化システムおよび空気浄化方法を提供すること。【解決手段】見かけ体積５ｍｍ３以上の多孔質担体の表面に、粒径１０ｎｍ以下の白金ナノ粒子が均一に担持されている白金担持触媒、空気中の化学物質を中間生成物に変換する白金担持触媒を備える第一の浄化装置と、中間生成物を二酸化炭素と水を含む最終生成物に分解する光触媒を備える第二の浄化装置とを有する空気浄化システム、白金担持触媒を用いて、空気中の化学物質を他の化合物に変換するステップを有することを特徴とする空気浄化方法。【選択図】図２