Application of α Alumina and γ Alumina in the Catalysis of Petroleum Refining

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What is alumina

Alumina Al2O3 is an organic substance. It is an inorganic compound with the chemical formula Al2O3. It has a melting and boiling point of 2960degC. It is a crystalline ion that can be ionized under high temperatures.
Diaspore and bauxite (Al2O3*3H2O), which are both mineral aluminates, are used in the production of industrial alumina. Al2O3 of high purity is usually prepared chemically. Al2O3 comes in different forms. There are over 10 different types of crystals. There are 3 main crystal types: a, b and g Al2O3. At high temperatures above 1300, the structure is different and so are its properties.

Use of alumina

It is transformer oil in the industrial sector. Alumina comes in two main types: the a-type, and the g-type. The filterate is cooled and then aluminium hydroxide crystalline salts are added. This process is known as “Bayer.”

1. It is important to note that the aluminium oxide, or Crucible in the industry, is also known by the name of Aluminium Oxide, is highly flammable.

2. Alpha alumina does not dissolve in water or acid. 9-4, density 3, Catalyst, catalyst carrier. Alumina pure is a white, amorphous powder. It can also be used to produce refractory blocks with internal surfaces of up to 100 square meters per gram. These bricks have high activity and good adsorption. Industrial products can be colourless, or slightly pinkish, cylindrical particles. They are extracted from bauxite.
3. It is widely used as an adsorbent for the petroleum refining industry and petrochemical industries. It is still the most common method of producing alumina in industrial scale. When heated to 1,200 degrees, the lattice will convert completely into alumina.

4. G-type alumina cannot be dissolved in water. It is also known as activated alumina by industry. The melting point and boiling temperature are both 2980 degrees. KJ Bayer, an Austrian scientist, invented this technique in 1888. It is used as the primary raw material to produce metal aluminum. It can be recycled and reused by heating to 175°C for 6-8hrs. Presently, more than 90% (of the total production) of alumina is produced using the Bayer process. It is used in laboratories as a material to create artificial sapphires, rubies, and strong desiccants.

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