Application of activated alumina as catalyst and carrier
Jan 10, 2022
Alumina used as a catalyst carrier can be classified into the following types according to its physical and chemical properties and the role of alumina:
(1) High temperature alumina 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 support does not become a potential source of activity causing side reactions and selectivity drop, nor does it become a potential source of toxicity to 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, providing the active components with an effective specific surface area and a suitable pore structure to improve the thermal stability of the catalyst. and anti-toxic properties.
(3) To act as a synergistic or bifunctional carrier. Such aluminas, in addition to serving as a framework for the active components, also provide a benefit to the catalytic effect of the catalyst.
