ZSM-5 zeolite molecular sieve (Zeolite Socony Mobil-5 or ZSM-5 zeolite powder), also known as ZSM-5 catalyst, is a synthetic zeolite with a crystal type of MFI. ZSM-5 molecular sieve is one of the most important industrial zeolite catalysts due to its unique pore architecture, excellent stability, and outstanding catalytic performance.
The crystal structure of ZSM-5 zeolite molecular sieve, consists of an interconnected three-dimensional channel system formed by ten-membered rings. The pore openings are approximately 0.54 nm × 0.56 nm, allowing selective diffusion and conversion of molecules based on their size and shape. This characteristic, known as shape selectivity, makes ZSM-5 particularly effective in numerous catalytic and adsorption processes.
One of the most remarkable features of ZSM-5 molecular sieve is its exceptional thermal and hydrothermal stability. It can maintain its crystalline structure and catalytic activity under severe operating conditions, including high temperatures and steam-rich environments. And its high silica-to-alumina ratio can be adjusted during synthesis, enabling precise control of acidity, hydrophobicity, and catalytic performance to meet specific process requirements.
ZSM-5 zeolite catalyst exhibits strong Brønsted and Lewis acidity, excellent resistance to acids and chemical attack, and superior anti-coking properties compared with many conventional catalysts. As a highly efficient catalyst, hydrophobic adsorbent, and catalyst support material, ZSM-5 is widely utilized throughout the petrochemical, refining, environmental protection, and fine chemical industries.
| Type | ZSM-5 |
| Apprearance | White powder |
| Crystal Structure | MFI |
| Crystal Size(μm) | 0.2~10 |
| BET Surface Area(㎡/g) | >300 |
| SiO2/Al2O3(mol/mol) | 10~∞ |
| Na2O(wt%) | <0.1 |
| Crystallinity(%) | >90 |
| Loss on ignition(wt%) | <11 |
* Environmental VOCs Removal
* Petrochemical FCC
* Methanol Conversion Technologies
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