Catalytic cracking process

Details Catalytic cracking process Catalytic cracking process

1987-04-27

1988-11-01

Sneed, H. M. S.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208111, 208113, 502 65, C10G 1102, C10G 1104

Patent

active

047818158

ABSTRACT:
Catalytic cracking catalysts, the process of their preparation and the process of their use. The cracking catalyst comprises a zeolite having a mole ratio of oxides in the dehydrated state of (0.85-1.1) M.sub.2
O:Al.sub.2 O.sub.3 :xSiO.sub.2 wherein "M" is a cation having a valence of "n", "x" has a value greater than 6.0, has a x-ray powder diffraction pattern having at least the d-spacings of Table A, has extraneous silicon atoms in the crystal lattice in the form of framework SiO.sub.4 tetrahedra and has been thermally treated and/or cation exchanged with a multivalent cation. The catalyst of the instant invention are unique in the fact that the zeolitic aluminosilicate has less than 1.2 weight percent Na.sub.2 O and such is achieved without the requirement of a pre-calcination step.

REFERENCES:
patent: 4512875 (1985-04-01), Long et al.
patent: 4517073 (1985-05-01), Ward et al.
patent: 4534853 (1985-08-01), Long et al.
patent: 4576711 (1986-03-01), Ward et al.
patent: 4604373 (1986-08-01), Clark
patent: 4610856 (1986-09-01), Skeels et al.
patent: 4666875 (1987-05-01), Pellet et al.
patent: 4672048 (1987-06-01), Ward
patent: 4678765 (1987-07-01), Chiang et al.

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