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Alumina activated used as a catalyst carrier can be summarized into the following types according to its physical and chemical properties and the role played by alumina:
(1) High temperature alumina activated carrier. This type of alumina has a small specific surface area, high temperature resistance, chemical resistance and high mechanical strength, so it can withstand harsh operating conditions. Due to the inertness of alumina, the high-temperature alumina carrier will not become a potential source of activity that causes side reactions and a decrease in selectivity, nor will it become a potential source of toxicity for the catalyst system.
(2) Interactive carrier. This type of alumina is the most widely used. It can react with the active components of the catalyst to disperse the active components of the catalyst into the carrier, provide effective specific surface area and suitable pore structure for the active components, so as to improve the thermal stability of the catalyst And anti-toxic properties.
(3) Play a synergistic or dual-function carrier. In addition to serving as the skeleton of the active component, this type of alumina also provides a gain effect for the catalytic effect of the catalyst.
The amount of alumina activated used as catalyst and carrier is more than the total amount of catalysts of molecular sieve, silica gel, activated carbon, diatomaceous earth and silica alumina gel. This shows the pivotal position of alumina in catalysts and carriers. Among them, η-Al2O3 and γ-Al2O3 are the most important catalysts and supports. They are both spinel structures containing defects. The difference between the two is: the tetrahedral crystal structure is different (γ>η), and the hexagonal layer stack The row regularity is different (γ>η) and the Al—O bond distance is different (η>γ, the difference is 0.05～0.1nm).
Changxing is one of the most efficient customers I have ever chosen, with high enthusiasm for service
Changxing’s carbon molecular sieve has undergone its own research and development technology, and its nitrogen production effect is ahead of other peers.
I choose to cooperate with Changxing because they will arrange everything after I place the order, I only need to wait for the receipt of the goods.
Changxing has a complete range of molecular carbon models, and their products are very high-quality, which speeds up the production efficiency of our factory, very good!
The alumina activated we have now developed has been upgraded on the existing technology, which has greatly improved the product characteristics.
After confirming the order of alumina activated, we will arrange the packaging here and ship it as quickly as possible.
Our alumina activated is prepared by the latest PSA method up to 99.999999% at a time, making the production more economical.
Choosing high-quality alumina activated can improve production efficiency, reduce enterprise costs, and produce more quality products.
Our alumina activated is produced through continuous innovation and is a professional supplier. The address is in Lvzhou Industrial Zone, Sian Town Changxing, Zhejiang, China.
When you encounter difficulties in the process of using alumina activated, you can get in touch with our customer service on our official website. Our 24-hour service is online.