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SSZ-13 zeolite |
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Item : SSZ-13 |
Details : SSZ-13 zeolite
SSZ-13 (framework type code CHA) is an aluminosilicate zeolite mineral possessing 0.38 × 0.38 nm micropores.[1] It belongs to the ABC-6 family of zeolites as well as offretite, cancrinite, erionite and other related minerals.[2] The framework topology is the same as that of chabazite but SSZ-13 has high-silica composition with Si/Al > 5 which leads to low cation exchange capacity. The typical chemical formula of the unit cell can be described as QxNayAl2.4Si33.6O72•zH2O (1.4 < x <27)(0.7 < y < 4.3)(1 < z <7), where Q is N,N,N-1-trimethyladamantammonium.[1] The material was patented by Chevronresearch Company in 1985,[3] and has a potential use as a solid catalyst for the methanol-to-olefins (MTO) process and the selective catalytic reduction(SCR) of NOx.
Specification of SSZ-13
| SSZ13 |
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| SiO2/Al2O3 |
20-50 |
20-50 |
| BET |
>650 |
>700 |
| crystal size |
0.5-1um |
200-300nm |
| Na2O |
0.05 |
0.05 |
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