Zeolite ZSM-5 Catalytic are mainly applied for catalytic cracking, catalytic dewaxing,toluene disproportionation, xylene isomerization,ethylene-benzene alkylation,methanol converting to gasoline,methanol catalytic dehydration to produce dimethyl ether,and lower carbon hydrocarbon aromatization.
|SiO2/Al2O3=25 ||SiO2/Al2O3=38 ||SiO2/Al2O3=50 |
|Na2O 4-4.5% ||Na2O 2.8-2.9% ||Na2O 2.1-2.3% |
|Al2O3 5-5.5% ||Al2O3 3.8-3.9% ||Al2O3 2.3-2.6% |
|SiO2 80-85 ||SiO2 85-86 ||SiO2 86-87 |
|Adsorption ||Normal Hexane ||Hexamethylene ||Water |
|SiO2/Al2O3=25 ||9.5-10.5% ||2.05-2.5% ||11.0-12.0% |
|SiO2/Al2O3=38 ||9.5-10.5% ||1.9-2.3% ||9.0-10.0% |
|SiO2/Al2O3=50 ||9.0-10.0% ||1.5-2.0% ||7.0-8.0% |
2. Pore size:5Å
3.Framework Density:1.81 (determined in isooctane)
4.Thermal stability:The differential thermal analyst(DTA) curve shows that the crystal exhibits no major structural change up to temperature of about 1200℃.
5.Hydro-thermal stability:The binder-additive catalyst could retain its crystallinity when treated under 100% steam at a temperature of 700℃ for 12h.
6.BET Specific Surface Area:340≥m2/g