ZSM-22 Formula |Ca6 (H2O)40| [Al12Si24O72]-CHA
Description
ZSM-22 channel can inhibit the production of carbon deposition and has a strong shape selectivity for small molecule reactions.
ZSM-22 has the topological skeleton of TON structure, which includes Five-membered rings, Six-membered rings and Ten-membered rings at the same time. The one-dimensional channel composed ofTen-membered rings is a parallel channel that is not cross-linked and the hole mouth is elliptic.
Specification
|
Items |
Unit |
Specification |
|
Appearance |
mm |
White powder |
|
SiO2/Al2O3 (molar ratio) |
% |
60-100 |
|
BET Surface area |
m2/g |
≥180 |
|
Relative crystallinity |
% |
≥95 |
Applications
Due to ZSM-22 suitable pore structure and strong surface acidity, ZSM-22 can be used in catalytic cracking, hydrocracking, dewaxing, isomerization (such as paraffin isomerization and butylene skeleton isomerization), alkylation, dealkylation, hydrogenation, dehydrogenation, dehydration, cyclization and aromatization.
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