Catalysts bound with low acidity refractory oxide

Details Catalysts bound with low acidity refractory oxide Catalysts bound with low acidity refractory oxide

1992-06-02

1993-01-26

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 60, 502 64, B01J 2900, B01J 3700

Patent

active

051822423

ABSTRACT:
Low acidity refractory oxide-bound molecular sieve, e.g., zeolite, compositions, for example, zirconia-bound zeolite Beta, possessing superior physical properties, e.g., crush strength, and the method for their manufacture are described. Since low acidity refractory oxide-bound catalysts are less active than alumina-bound zeolite catalysts, the former are particularly useful in hydrocarbon conversion processes in which reduced coke make increases catalyst cycle length. Due to their stability in acid environments, the low acidity refractory oxide-bound molecular sieve extrudate herein can be acid treated without unduly compromising its structural integrity.

REFERENCES:
patent: 3702886 (1972-11-01), Argauer et al.
patent: 3843741 (1974-10-01), Yan
patent: 4013732 (1977-03-01), Chang et al.
patent: 4582815 (1986-04-01), Bowes
patent: 5053374 (1991-10-01), Absil et al.
patent: 5116792 (1992-05-01), Ward

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