Since its industrial application in the 1940s, alumina catalysts have become one of the most important materials in the field of heterogeneous catalysis. According to statistics, about 60% of the world's industrial catalytic processes directly or indirectly use alumina as a catalyst or carrier. In modern chemical production, catalysts are known as the "chips of the chemical industry", and alumina catalysts are undoubtedly one of the most dazzling stars in this chip. Compared with other catalytic materials, alumina has outstanding advantages such as low cost, mature preparation technology, and good structural stability, and is particularly suitable for large-scale industrial applications.
Unique structural characteristics: Catalytic talent given by nature
Porous structure: Alumina has an ultra-high specific surface area, equivalent to the size of a basketball court per gram of material after unfolding.
Active sites: Lewis acid sites and Bronsted acid sites exist on the surface at the same time, making it easy to control various reactions.
Controllable characteristics: By controlling the preparation conditions, its crystal form, pore size and acidity can be adjusted to meet different reaction requirements.
Excellent performance: Hard power for industrial applications
High temperature resistance: The structure can remain stable at high temperatures. In high temperature reactions such as petroleum cracking, alumina catalysts can continue to work for thousands of hours.
Economical: Compared with expensive materials such as molecular sieves, the cost of alumina raw materials is relatively affordable and can be reused 10-15 times, making it the "king of cost-effectiveness" in the catalytic industry.
Wide range of applications: from laboratory to industrialization
The "heart" of oil refining: During the hydrodesulfurization process, Ni-Mo/Al₂O₃ catalysts can reduce the sulfur content of oil products to below 10ppm, meeting the Euro VI standard. More than 2 billion tons of oil are processed by this type of catalyst every year worldwide.
Environmental guardian: As the main carrier of automobile exhaust purification catalysts, it helps convert more than 90% of harmful gases. The three-way catalytic converter of an ordinary car contains about 1.5kg of alumina.
New energy pioneer: Showing its prowess in emerging fields such as biomass conversion and fuel cells. The latest research shows that modified alumina catalysts can increase biomass conversion efficiency by more than 30%.
The reason why alumina catalyst has become the "standard configuration" in the field of industrial catalysis is that it perfectly balances the contradictory relationship between performance and cost. With its excellent comprehensive performance and extremely high cost performance, it has become the core component supporting the operation of the entire system. It is in this role that alumina catalyst silently supports many industrial processes from oil refining to environmental protection.
