Both molecular sieve and Activated alumina can be used as adsorbent in industrial production, but in actual use, they are aimed at different substances. Therefore, many users do not know which product to choose when purchasing. Next, let's talk about the difference between molecular sieve and Activated alumina carefully from the Y-type molecular sieve manufacturer.
Household molecular sieves and Activated alumina balls have one thing in common, and both can be used as desiccants.
1、 The difference between the two lies in their different uses:
1. Molecular sieves have strong moisture absorption ability and are used for gas purification treatment. During storage, they should avoid direct exposure to the air. Molecular sieves that have been stored for a long time and absorb moisture should be regenerated before use. Oil and liquid water should be avoided during use, and contact with oil and liquid water should be avoided as much as possible during use.
2. Activated alumina balls are mainly used for dehydration and drying of Industrial gas such as chemical industry, metallurgy, electronics and petroleum, such as permanent gases such as air, oxygen and nitrogen, smelting gas and petroleum cracking gas.
2、 Different characteristics
Activated alumina: white spherical material, made by special process. Due to its unique skeleton structure, it has a strong affinity with active ingredients. This product has uniform micropore distribution, suitable pore size and pores, and is characterized by high water absorption, low bulk density, good mechanical performance, good stability, etc. It is suitable for desiccants, catalyst carriers, defluorinators, pressure swing adsorbents, hydrogen peroxide special regenerators, etc.
The specific surface area is 300-1000m2/g larger, and the inner crystal surface is highly polarized. It is an efficient adsorbent, a solid acid with high acid concentration and strength on the surface, which can cause positive carbon ion type catalytic reactions. When metal ions in the composition exchange with other ions in the solution, the pore size can be adjusted, the adsorption performance can be changed, and the catalytic performance can be changed to prepare molecular sieve catalysts with different performance.
The simple difference between the two is that zeolite is mainly composed of three elements: silicon and aluminum. Molecular sieves with different pore sizes are formed based on different guiding agents, and their catalytic performance depends on the distribution of acid centers, while their adsorption performance depends on physical factors such as pore size and specific surface area.
