Combination of zirconia toughened alumina and molecular sieve

Combination of zirconia toughened alumina and molecular sieve

Zirconia toughened alumina has great surface hardness and compressive strength. It is not easy to break under static pressure and wear under alternating pressure, so it is very suitable for dehydration and drying of compressed air. Activated alumina has a specific surface area of 260-380m2/g, large adsorption capacity, and can be used for drying of high humidity gases.

When the metal ions in the composition exchange with other ions in the solution, the pore size can be adjusted to change their adsorption and catalytic properties, resulting in the preparation of molecular sieve catalysts with different performance. Molecular sieve refers to a large class of adsorbents with uniform micropores and the ability to selectively adsorb molecules with a diameter smaller than its pore size

The combination of zirconia toughened alumina and molecular sieve is usually used when dealing with gas with high water content. Zirconia toughened alumina should be pre dried first, and then molecular sieve should be used to eliminate residual water. This can extend the service life of molecular sieve and also enhance the drying effect.

It is precisely because alumina has the best water absorption rate at relatively high water content, high strength, and is not easy to pulverize. Molecular sieve has the best adsorption rate at low relative humidity, so zirconia toughened alumina and molecular sieve can be used together to achieve the best drying effect.

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