CATALYST ELEMENT AND METHOD FOR MANUFACTURE THEREOF

摘要

A catalyst body comprising a catalytic material containing an alkali metal and/or an alkaline earth metal, and a carrier carrying the catalytic material is provided. The carrier comprises a cordierite binder phase 1 and aggregate phases 2 dispersed in the cordierite binder phase 1. A method for manufacturing a catalyst body comprising a catalytic material containing an alkali metal and/or an alkaline earth metal, and a carrier carrying the catalytic material is provided. The method comprises steps of (I) forming a formed body from a carrier raw material containing an aggregate raw material for forming aggregate phases and a binder raw material for forming a cordierite binder phase; (II) firing the formed body to form a carrier containing the cordierite binder phase and the aggregate phases dispersed in the cordierite binder phase; and (III) loading a catalytic material containing an alkali metal and/or an alkaline earth metal on the carrier. The type of alkali metal-containing catalyst body and the manufacturing method thereof can hinder the reaction of the type of alkali metal with the carrier and hinder degradation of the carrier and deterioration in catalyst performance.