| abstract |
Hydrocarbon conversion catalysts containing zeolite beta as a catalytically active component, either on its own or with other zeolites, especially faujasites such as ultrastable zeolite Y (USY) are produced by including a metal cationic complex compound such as aluminum hydroxychloride or aluminum zirconium hydroxychloride as a stabilizing component to improve the hydrothermal stability and physical strength of the catalyst. The zeolites may be formulated into catalysts for catalytic cracking, hydrocracking, dewaxing, alkylation, isomerization, hydration and other hydrocarbon conversion processes using porous matrix materials such as silica, silica alumina or clays. |