HY Zeolite Specifications
Standard specification ranges for HY zeolite (H-form FAU) supplied by ZeoCatalyst. HY is produced by proton exchange of Na-Y, delivering strong Bronsted acidity. Batch COA with every shipment.
Standard Specifications
| Parameter | Typical Range | Test Method |
|---|---|---|
| SiO2/Al2O3 (molar) | 5 to 80 plus | XRF |
| BET surface area | 600 to 800 m2/g | N2 adsorption |
| Unit cell size | 24.50 to 24.70 A | XRD |
| Pore size | 7.4 A (12-MR FAU) | Structure |
| Na2O content | 0.1 wt percent max | XRF |
| XRD crystallinity | 90 percent min vs FAU reference | XRD |
HY vs USY
HY provides maximum Bronsted acidity from proton exchange without dealumination. USY sacrifices some acidity for hydrothermal stability. HY vs USY covers the full comparison.
Recommended Applications
- FCC active matrix (high initial activity)
- Hydrocracking (strong acidity)
- Fine chemical acid catalysis
Download the USY TDS for comparison. For HY-specific data, request a sample with your target Si/Al ratio.
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