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Cracking properties of some reforming catalysts
Author(s) -
AlMadfai Suham,
Abbas Abdullah A.,
Ali Ahmed J.
Publication year - 1986
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450640614
Subject(s) - cracking , catalysis , cumene , benzene , fluid catalytic cracking , materials science , yield (engineering) , chemical engineering , metallurgy , chemistry , inorganic chemistry , composite material , organic chemistry , engineering
The cracking properties of industrial reforming catalysts of γ‐alumina loaded with 0.6% Pt, with 0.35% Pt, and with 0.35% Pt plus promoters were investigated. The mode of cracking of these catalysts was studied after treatment under different oxidation and reducing atmospheres. Cumene cracking was used as a model reaction. The cracking products were collected and analysed, and the quantity of benzene produced was used to compare the activities of these catalysts. Maximum cracking was observed around 550°C for all catalysts studied. Cracking rates differed for various treatment conditions for the same catalyst, normally increasing after oxidation treatment. Marked changes in the cracking activity of unloaded γ‐alumina were observed after it was chlorinated. Benzene yield was studied in relation to possible complex formation of Pt‐Al 2 O 3 ‐Cl 2 .