Introduction to Alumina Catalyst Support Balls

Alumina catalyst carrier balls are a material made of alumina in the form of spheres used to carry catalysts. They are used in the petrochemical industry for hydrogenation, dehydrogenation, desulfurization, reforming, and cracking catalytic reactions, such as in the heavy oil hydrogenation catalyst, where alumina catalyst carrier balls can carry hydrogenation catalysts to improve the conversion efficiency and product quality of heavy oil. In the chemical pharmaceutical industry, they are used in drug synthesis reactions as a carrier for catalysts to improve the selectivity and yield of the reaction and reduce the occurrence of side reactions.

Characteristics of Alumina Catalyst Support Balls:

1. High specific surface area: This allows the catalyst to be better dispersed on its surface, increasing the contact area between the catalyst and the reactants, thereby improving the efficiency of the catalytic reaction.
2. Good pore structure: It has rich pores, including micro-pores, meso-pores, and macropores of different pore sizes. These pores not only accommodate the catalyst but also provide channels for the transport of reactants and products, facilitating the reaction.
3. High mechanical strength: In the reaction process, it needs to withstand certain pressure, friction, and impact, so it needs to have high mechanical strength to ensure the stability of its structure and service life.
4. Good chemical stability: Under various chemical reaction conditions, it can maintain its chemical properties stability, not react with reactants, products, or catalysts, thus affecting the effect of catalytic reaction.
5. Good thermal stability: Under high temperature conditions, it can maintain the stability of its structure and performance, without deformation, sintering, etc., suitable for high-temperature catalytic reactions.

The main components of the alumina catalyst carrier balls are aluminum oxide (Al₂O₃) and silicon dioxide (SiO₂). However, in actual alumina catalyst carrier ball products, in addition to aluminum oxide, there may be small amounts of other components such as silicon (Si), sodium (Na), iron (Fe), and calcium (Ca), but the content of these impurities is usually very low.

What is the function of the support balls for alumina catalysts?

Alumina catalyst support balls play a crucial role in the chemical catalytic reaction system. Their main function is to provide a stable support structure for the catalyst. By evenly distributing the flow paths of gas or liquid reactants, they prevent phenomena such as channling and skewed flow in the catalyst bed, thereby ensuring full contact between the reaction medium and the catalyst and enhancing the reaction efficiency. Meanwhile, it can effectively bear the weight of the catalyst particles and the pressure during the reaction process, preventing the catalyst from breaking due to squeezing or collision, thereby maintaining the porosity and permeability of the catalyst bed, extending the service life of the catalyst. Moreover, with its own high hardness, high temperature resistance and corrosion resistance, it can maintain structural stability in harsh reaction environments. Lay the foundation for the continuous and efficient progress of catalytic reactions.