Gamma Alumina, as a catalyst carrier, plays an irreplaceable role in the fields of petrochemical, environmental protection, coal chemical, and fine chemical industries due to its high specific surface area, adjustable pore structure, good thermal stability, and economy. It is a key bridge connecting active components and industrial reactors, and is truly the “mother of industrial catalysts”.
Industry wide application scenarios covering energy, environmental protection, and fine chemicals
Scenario 1: Petroleum Refining and Hydrogenation System (the world’s largest application track)
More than 60% of catalytic carriers in the refining industry use gamma alumina, which is essential for clean production of diesel and gasoline
- Hydrodesulfurization/Denitrification: Load Co Mo and Ni Mo catalysts to deeply remove sulfur and nitrogen impurities from crude oil, reducing the sulfur content of the oil to less than 10ppm and meeting the National VI and Euro VII clean fuel standards;
- Hydrocracking: Heavy residual oil is lightened, and high molecular weight heavy oil is cracked into gasoline and diesel raw materials. The conversion rate of raw materials in a single unit can reach 92%;
- Catalytic reforming: A dual functional carrier is used to prepare high octane gasoline and aromatic hydrocarbon raw materials, supporting the supply of plastic and chemical fiber basic chemical raw materials.
Scenario 2: Three way catalytic converter for automobile exhaust (environmentally friendly and essential track)
The core substrate of the automotive three-way catalyst is loaded with precious metals such as platinum, palladium, and rhodium, which efficiently converts three types of pollutants in exhaust gas: carbon monoxide, hydrocarbons, and nitrogen oxides. The CO conversion efficiency is 99%, and the NO ₓ purification rate exceeds 97%. The carrier is resistant to high temperature and thermal shock, and maintains the integrity of the pore under high temperature fluctuations during vehicle start and stop. Precious metals are not easy to fail, and it is suitable for exhaust treatment of all categories of passenger cars, trucks, and construction machinery.
Scenario 3: Industrial waste gas VOCs, flue gas purification
Factory painting, printing, chemical exhaust catalytic combustion, combined with precious metal catalysts to decompose organic waste gases; The Claus sulfur recovery process in coal chemical and natural gas plants relies on the acidic carrier of high purity gamma alumina to convert hydrogen sulfide into elemental sulfur, simultaneously achieving standard emissions of exhaust gas and sulfur resource recovery, balancing environmental protection and resource recycling.
Scenario 4: Fine Chemicals and Coal Chemical Synthesis
- Dehydration of alcohols to produce ethylene and ether, with the carrier acting as an acidic catalyst without the need for additional additives;
- Propane dehydrogenation, methanol to olefin, Fischer Tropsch synthesis, stable dispersion of cobalt and iron active components, ensuring stable production of olefins and fuels;
- Preparation of synthetic ammonia and formaldehyde as support carriers to enhance reaction stability and reduce the generation of by-products.
In the dual carbon era, this carrier balances production efficiency and environmental protection needs, reduces hazardous waste generation, and lowers device energy consumption. With stable and reliable comprehensive performance, it has become an indispensable basic new material for the energy, environmental protection, and chemical industries.