Remarkable effect of postsynthesis preparation procedures on catalytic properties of Ni-loaded BEA zeolites in hydrodechlorination of 1,2-dichloroethane

- Ni was incorporated in framework of SiBEA as pseudo-tetrahedral Ni(II).
- Ni was formed in extra-framework of HAlBEA mainly as octahedral Ni(II).
- Activity of red-C-NiSiBEA and red-C-NiHAlBEA depended on their acidity and Ni° particles size.
- Selectivity to ethylene was very high for red-C-Ni2.0SiBEA catalyst (∼90%).
- Red-C-Ni2.0HAlBEA catalyst promoted strongly formation of vinyl chloride (∼70%).