High Efficiency Catalysis Of Avant Activated Alumina Ball

Avant activated alumina balls are particles with many capillary channels that have a strong affinity for substances with strong water molecules. The adsorbent is characterized by high static capacity, low wear, water resistance and strong adsorption capacity.

However, Avant activated alumina ball is a novel catalyst carrier and covering filler. It not only has the characteristics of high temperature, high pressure and high mechanical strength of inert ceramic ball, but also has certain catalytic activity. It can catalyze olefins saturation, desulfurization and denitrification processes. For hydrofining, hydrocracking, reforming prehydrogenation and benzene hydrogenation of distillate oil, filling Avant activated alumina ball on top of catalyst bed can make primary hydrogenation of olefins in secondary processing raw oil. Reduce catalyst coking. The use of Avant activated alumina ball can not only effectively improve the space utilization of the reactor, but also protect the catalyst from poisoning and sintering to a certain extent, thus prolonging the service life.

In addition, the role of Avant activated alumina carrier in multicomponent catalysts: 

1. It can dilute the active components in the catalyst to meet the requirement of heat balance and maintain the high dispersibility of the active components;

2. Active components dispersed on the surface of the carrier to obtain a higher specific surface area and improve the catalytic effect of the active components per unit mass;

3. The catalyst prepared may be of appropriate shape, size and mechanical strength to meet the operational requirements of the industrial reactor;

4. It also prevents the sintering of active ingredients in the process of use, and improves the heat resistance of the catalyst. Improve the conductivity of catalyst;

5. Reduce the content of active ingredients, provision of additional activity centres, the thermal stability of catalyst is improved.

Catalyst carrier, also known as carrier, is one of the components of the supported catalyst. The catalytic active component is supported on the surface of the carrier. The carrier is mainly used to load the active component, so the catalyst has specific physical properties, and the carrier itself usually does not have catalytic activity.

Most additives are products of the catalyst industry.Alumina carrier, silica gel carrier, activated carbon carrier and some natural products, such as pumice, diatomite, etc.