Role of zeolite non-framework aluminium in catalytic cracking

Autor:	G. McElhiney, D.A. Harding, S. Cartlidge, S.W. Addison
Rok vydání:	1988
Předmět:	Cracking chemistry Aluminium Inorganic chemistry General Engineering chemistry.chemical_element Fuel oil Coke Molecular sieve Fluid catalytic cracking Zeolite Catalysis
Zdroj:	Applied Catalysis. 45:307-323
ISSN:	0166-9834
DOI:	10.1016/s0166-9834(00)83036-5
Popis:	Catalytic cracking catalysts containing hydrothermally stabilized, acid treated (USE) Y zeolites were prepared and tested for the conversion of West Texas Heavy Gas Oil. The cracking catalyst zeolite contents were equivalent; however, the amounts of zeolite non-framework aluminium were decreased from catalyst to catalyst. Steam deactivated cracking catalyst activity was highest when catalyst zeolite non-framework aluminium content was highest, as was the selectivity to gasoline. Zeolites which have low amounts of non-framework aluminium also have maximum free mesopore volumes. Cracking catalysts prepared from such low-aluminium zeolites are not active for heavy oil cracking and high boiling hydrocarbons plug the mesopores causing high coke yields.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::450d6a749495653d3db7868c4b48c151 https://doi.org/10.1016/s0166-9834(00)83036-5 Zobrazit plný text záznamu