CERAMIC FIBER FILTER CONTAINING FIBROUS CATALYST CARRIER AND PREPARATION THEREOF

摘要

PURPOSE: A preparation of ceramic fiber filter containing a fibrous catalyst carrier is provided which has an air transmissivity not smaller than 500cc/cm¬2.min though the surface area of the ceramic filter increases due to forming the fibrous catalyst carrier in the ceramic filter. CONSTITUTION: A ceramic fiber filter is obtained by a process containing the steps of: mixing 40-70wt% of high strength ceramic fiber having surface area of less than 1 m2/g and 30-60wt% of fibrous catalyst carrier having surface area of 30-200 m2/g with water to form a slurry; molding to the form of a plate or a cylinder; adding 10-20wt% of colloidal inorganic bonding materials composed of each or mixture of aluminum, silica and titania; drying and sintering, which result in ceramic fiber filter containing a fibrous catalyst carrier having a porosity of 80-90% and a surface area of 20-100 m2/g