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Peptization Control of Aluminum Chloride‐Containing Composites for Catalysts with Active Matrix
Author(s) -
Carrasco Saavedra Andres,
Seifert Markus,
Hauck Mathias,
Brünner Andrea,
Doert Thomas,
Busse Oliver,
Weigand Jan J.
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202100011
Subject(s) - peptization , catalysis , zeolite , refining (metallurgy) , fluid catalytic cracking , materials science , chemical engineering , aluminium , zeta potential , porosity , chemistry , composite material , metallurgy , organic chemistry , nanotechnology , nanoparticle , engineering
Aluminum‐based composite particles are widely applied complex catalyst materials in oil refining. Due to their tunable shape, porosity, and acidity, they are commonly used for the production of cracking catalysts. Shaping of well‐defined particles remains a challenge for industrial catalyst preparation by spray drying, because catalyst properties must satisfy local demands of a refinery. The selectivity can be modified and the cracking activity enhanced with acid binders, e.g., AlCl 3 . Therefore, peptization of AlCl 3 ‐containing suspensions with zeolite Y and kaolin was characterized by pH value, 27 Al NMR spectroscopy, and zeta potential. A new control strategy for binding of kaolin and zeolite Y in spray drying was developed by adjusting the pH and binder Al/Cl ratio.