ZSM-5 Zeolite Molecular Sieve
ZSM-5 molecular sieve has 6 characteristics, as following: thermal stability, acid resistance, stability in the water vapor, hydrophobicity, prevention of carbon deposit, outstanding shape selectivity. So, it is the most important catalytic materials in shape-selective reactions in the petroleum industry. And can be widely used in the field of fine chemical engineering and environmental protection.
Technical indexes of ZSM-5 molecular sieve:
Items | Unit | Index |
Comparative Crastallinity | % | 85-93 |
SiO2/Al2O3 | / | 25-1000 |
Total Bet | m2/g | 349-379 |
Specific Bet | m2/g | 320-340 |
D50 Vol.% | μm | 5.3-6.1 |
D90 Vol.% | μm | 9.1-9.8 |
Na2O | wt% | 0.028-0.081 |
SO42- | wt% | 0.37 |
LOI | wt% | 2.7-5.6 |
Specific applications of ZSM-5 molecular sieve with different silica-alumina ratios:
ZSM-5 SiO2/ Al2O3(molar ratio) | specific application |
12.4 | Methanol to Gasoline |
19 | Benzylation |
24 | Polyethylene cracking |
29.2 | Alkylation, condensation, acylation |
31.4 | ethanol dehydration |
34.2 | macromolecular cleavage |
48 | Methanol was dehydrated to make dimethyl ether |
48 | Catalytic cracking |
51.4 | acetalation |
51.4 | Methoxychalcone was synthesized |
63 | Methanol to Gasoline |
100~150 | shape selective catalysis |
220~1000 | Adsorption of VOC in water for environmental protection |
