I 、Product introduction
SAPO-11 molecular sieve has AEI structure and belongs to the orthogonal crystal system. Its skeleton is mainly formed by tetrahedron interweaving with each other being composed of P\SI\AL atoms and has an elliptic Ten-membered ring and a one-dimensional straight ring channel. Because of its weak acidity, it is often used in catalytic cracking reaction in petrochemical industry to improve the octane number of gasoline.
II 、Product application
1、 Low carbon olefin isomerization
2、 It is used to prepare catalysts for catalytic cracking to improve octane number of gasoline and for hydroisomerization and dewaxing of lubricating oil.
3、 Isodewaxing of diesel and base oil
4、Iron or cobalt catalysts are used in combination with SAPO-11 molecular sieves to convert syngas into gasoline components above C5, improving process selectivity and product quality
5、Alkylation of aromatic hydrocarbons with branched group
III 、Typical indicators
Analytical item |
Unit |
Analytical result |
Analytical method |
Appearance |
|
white powder |
|
Silica-alumina ratio |
|
0.5-1.5 |
XRF |
Relative crystallinity |
% |
≥90 |
X-ray diffractometer |
Total specific surface area |
㎡/g |
≥200 |
N2 Adsorption |
Pore volume |
cm3/g |
0.14-0.16 |
N2 Adsorption |
Aperture |
nm |
0.5-0.7 |
N2 Adsorption |
Mean grain size |
um |
2--10 |
Laser Scatter Distribution |
Na2O |
wt% |
≤0.1 |
Flame Photometric Analysis |
Loss on ignition |
wt% |
≤5 |
Gravimetric Analysis |