Ceramic ball, also known as inert alumina ball, is mainly used to increase the distribution point of gas or liquid, support and protect the active catalyst with low strength. According to the content of AL2O3, it is divided into: ordinary ceramic balls, inert alumina ceramic balls, medium aluminum ceramic balls, high alumina ceramic balls, 99 high alumina ceramic balls, convex and concave groove open-hole ceramic balls, active ceramic balls, open-hole ceramic balls , Microporous ceramic balls, regenerative ceramic balls.
It is mainly used in the high temperature, high pressure and corrosive working environment of the chemical industry, and in the reformers, reaction furnaces and packed towers in the petroleum and chemical industries to prevent the equipment covered by the filtered silica from forming fouling or damaging the catalyst carrier.
1. The inert ceramic ball has the characteristics of high temperature and high pressure resistance, low water absorption and stable chemical properties. It can withstand the corrosion of acid, alkali and other organic solvents, and can withstand the temperature changes in the production process. The main function of the inert ceramic ball is to increase the distribution point of gas or liquid, and to support and protect the active catalyst with low strength.
2. Active ceramic balls are made by adding a small amount of transition metal oxides to inert ceramic balls. Active ceramic ball not only has the characteristics of high temperature resistance, high pressure and high mechanical strength of inert ceramic ball, it plays the role of filtering, dispersing vapor-liquid covering, supporting catalyst, but also has certain catalytic activity, which plays a role in olefin saturation and denitrification. Promoter.
3. The perforated ceramic ball is opened on the inert alumina ceramic ball to improve its specific surface area and porosity, and has the characteristics of small pressure drop and large flux.
4. Microporous ceramic balls are made of porous alumina ceramic balls to increase the porosity by 20~30%, and have the ability to filter impurities in oil. Tested by Dalian Institute of Chemical Physics, Chinese Academy of Sciences, the impurity removal rate is more than 75%. , After being used in the 400,000-ton coking gasoline and diesel hydrotreating unit of Jinzhou Petrochemical, the effect is good.
5. The heat storage ball has the characteristics of smooth surface, corrosion resistance, high strength and good heat storage performance, and is a special filler for air separation heat accumulators
