To provide a honeycomb catalyst structure and an SCR device which not only have high reliability without being damaged, for example, by vibration of a diesel engine for a marine vessel but also prevents increase in pressure loss even when the number of cells increases.SOLUTION: A honeycomb catalyst structure in which an SCR catalyst is carried on a metal honeycomb unit 10 having such a structure that a plurality of cells 13 extending from one end face to other end face in a longitudinal direction are partitioned by a cell wall, in which a material of the metal honeycomb unit 10 is made of an alloy containing Fe as a main component and 15-20 wt.% Cr and 2-5 wt.% Al, the SCR catalyst carried on the metal honeycomb unit 10 is made of TiO2 alone or is obtained by mixing TiO2 as a main component with one or two or more kinds of V2O5, WO3, MoO3, SiO2 and Al2O3, and cell density of the cells 13 is 50-500 cpsi.SELECTED DRAWING: Figure 4

    【課題】例えば船舶用ディーゼルエンジンの振動によってダメージをうけることなく、高い信頼性を有するのみならず、セル数を増やしても圧力損失が増大しにくいハニカム触媒構造体及びSCR装置を提供すること。【解決手段】長手方向に沿って、一方の端面から他方の端面に延設された複数のセル13がセル壁によって区画された形状のメタルハニカムユニット10にSCR触媒が担持されたハニカム触媒構造体であって、メタルハニカムユニット10の材質は、Feを主成分として、Crが15~20wt%、Alが2~5wt%含む合金製であり、メタルハニカムユニット10に担持されるSCR触媒が、TiO2単独からなるか、あるいはTiO2を主成分として、V2O5、WO3、MoO3、SiO2、Al2O3のいずれか1種又は2種以上が混合されたものであり、セル13のセル密度が、50~500cpsiであることを特徴とするハニカム触媒構造体。【選択図】図4


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    Title :

    HONEYCOMB CATALYST STRUCTURE AND SCR DEVICE


    Additional title:

    ハニカム触媒構造体及びSCR装置


    Contributors:

    Publication date :

    2022-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B01J Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie , CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY / B01D SEPARATION , Trennen / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein



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