Al2O3 Catalyst Support
1.Al2O3 catalyst support is a γ-Al2O3 supported Pt-Pd double precious metal catalyst and rare element is added as a promoter.
2.It has high dehydrogenation activity, high resistance to sulfur, CO and methanol poisoning, good stability and long service life.
3.It has high dispersity and crushing strength
Product Introduction
The mechanism of catalytic dehydrogenation is mainly based on free radical mechanism and ionic reaction mechanism.
Al2O3 catalyst support has the advantages of porosity, large surface area, high dispersibility, high thermal stability and so on. It's mainly used as a dehydrogenation catalyst carrier, and is also widely used in other industrial catalysis fields after the corresponding technical specifications are adjusted.
It has good mechanical strength, and good surface structure, pore structure, surface area, grain size, etc. required for chemical catalytic reactions. This product can play a very good role in catalytic reactions (selective dehydrogenation, hydrogenation, hydrogenolysis, oxidation, etc.).
Technical Index:
Item | Unit | Technical Index | |
Al2O3 | % | ≥92 | ≥92 |
SiO2 | % | ≤0.10 | ≤0.10 |
Fe2O3 | % | ≤0.04 | ≤0.04 |
Na2O | % | ≤0.45 | ≤0.45 |
Burn reduction | % | ≤7.0 | ≤7.0 |
Bulk density | g/ml | ≤0.70 | ≤0.70 |
Specific surface area | m2/g | ≥200 | ≥200 |
Pore volume | ml/g | ≥0.40 | ≥0.40 |
Crushing strength | N/Granule | ≥80（3-5mm） | ≥100（4-6mm） |
Feature:
The pore structure (including surface area, pore volume and pore size distribution) of the Al2O3 catalyst support not only has an important effect on the dispersion of the active component, but also directly affects the mass transfer and diffusion during the reaction. Therefore, the activity, selectivity and stability of the polyphase catalyst depend not only on the catalytic characteristics of the active components, but also on the pore structure of the catalyst carrier. It can load the active component mainly depends on its porous structure.
Different catalytic reactions have different requirements on the pore structure of the catalyst, which is determined by the pore structure of the carrier. Therefore, the adjustment of the pore structure of alumina is an important step for each catalytic reaction to select the appropriate catalyst carrier.
Our Lab:
At present, Al2O3 catalyst support is the most commonly used catalyst carrier for this type of catalyst, and the pore properties of the alumina support have an important influence on the catalyst activity.
In the AVANT preparation process of dehydrogenation catalyst carrier activated alumina, the proportion of pore distribution is large and the pore distribution is concentrated, which is beneficial to the improvement of catalyst activity.
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