Ultra large pore cracking catalyst and process for catalytic cra

Details Ultra large pore cracking catalyst and process for catalytic cra Ultra large pore cracking catalyst and process for catalytic cra

1991-07-24

1993-11-02

Morris, Theodore

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208118, 208120, C10G 1105

Patent

active

052581144

ABSTRACT:
A process and catalyst for catalytic cracking comprising a non-layered, ultra-large pore crystalline material. The crystalline material preferably has a benzene adsorption capacity greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C. Preferred materials have a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units. Preferred cracking catalysts comprise ultra-large pore materials having pore openings formed by at least 20 tetrahedrally coordinated members, most preferably with 36 or 42 tetahedrally coordinated members.

REFERENCES:
patent: 4309280 (1982-01-01), Rosinski et al.
patent: 5057296 (1991-10-01), Beck
patent: 5102643 (1992-04-01), Kresge et al.
"Ultralarge Pore Molecular Sieves", P. A. Jacobs & R. A. vanSanten, 1989 Elsevier Science Publishers, pp. 439-446.

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