本发明公开了一种高强度船用SCR催化剂及其制备方法和应用,以V2O5‑TiO2掺杂柱撑黏土为催化载体,以Ce为活性物质,通过将负载Ce的V2O5‑TiO2掺杂柱撑黏土与堇青石陶瓷载体结合制备得到。本发明以蜂窝状堇青石陶瓷为载体,使催化剂成品具有极高的机械强度,可更好地应对船舶颠簸晃动的行驶条件;V‑Ti‑PILC催化基体具有高活性、高比表面积且整体脱硝性能优良;针对船舶尾气特点,选用活性高、温度范围广的活性改性物质Ce,利用Ce的宽温度活性范围和V‑Ti‑PILC基体中V的基础活性,兼顾Ce的电子转移能力和Ce、V的中温段脱硝能力,使催化剂在250‑450℃内都有极高的脱硝效率,使用寿命延长。

    The invention discloses a high-strength marine SCR (Selective Catalytic Reduction) catalyst as well as a preparation method and application thereof, V2O5-TiO2 doped pillared clay is taken as a catalytic carrier, Ce is taken as an active substance, and the high-strength marine SCR catalyst is prepared by combining the Ce-loaded V2O5-TiO2 doped pillared clay with a cordierite ceramic carrier. According to the invention, the honeycomb cordierite ceramic is used as a carrier, so that the catalyst finished product has extremely high mechanical strength, and can better cope with the driving conditions of jolting and shaking of a ship; the V-Ti-PILC catalytic matrix has high activity, high specific surface area and excellent overall denitration performance; aiming at the characteristics of ship tail gas, an active modified substance Ce with high activity and a wide temperature range is selected, the wide temperature activity range of Ce and the basic activity of V in a V-Ti-PILC matrix are utilized, and the electron transfer capability of Ce and the medium-temperature section denitration capability of Ce and V are considered, so that the catalyst has extremely high denitration efficiency within 250-450 DEG C, and the service life is prolonged.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    一种高强度船用SCR催化剂及其制备方法和应用


    Erscheinungsdatum :

    2024-04-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B01J Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie , CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY / B01D SEPARATION , Trennen / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS