Catalytic conversion of trichloroethylene on nickel containing beta zeolites into value added products
PBN-AR
Instytucja
Instytut Chemii Fizycznej Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
CATALYSIS COMMUNICATIONS
ISSN
1566-7367
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2014
Numer zeszytu
Strony od-do
107-110
Numer tomu
57
Identyfikator DOI
Liczba arkuszy
Autorzy
Pozostali autorzy
+ 2
Słowa kluczowe
en
Nickel
Beta zeolites
Trichloroethylene
Hydrodechlorination
Streszczenia
Język
en
Treść
Nickel containing BEA zeolites, NiSiBEA and NiHAlBEA, with 2 wa, of Ni were prepared by a two-step postsynthesis method and conventional wet impregnation. The calcination of NiSiBEA and NiHAlBEA at 773 K for 3 h in air led to the formation of C-NiSiBEA and C-NiHAlBEA. After reduction at 873 K for 3 h in flowing 10\% H-2/Ar, red-C-NiSiBEA and red-C-NiHAlBEA were obtained and investigated as the catalysts in hydrodechlorination of trichloroethylene at 503 K. Comparative study performed on red-C-NiSiBEA and red-C-NiHAlBEA showed very high stability of the catalyst prepared by a two-step postsynthesis method and strong deactivation of the catalyst prepared by conventional wet impregnation during similar to 17 h of reaction. Application of both catalysts resulted in high selectivity to unsaturated hydrocarbons that are the most desired products in HOC processes. TPH of the catalysts after kinetic run have shown that the main cause of deactivation of NiHAlBEA is the formation of carbonaceous species during hydrodechlorination of trichloroethylene. (C) 2014 Elsevier B.V. All rights reserved.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
706995
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