Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1979-10-12
1981-03-24
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208120, 208138, 252477R, 585739, 10G 1105, B01J 2928
Patent
active
042578744
ABSTRACT:
An amorphous aluminosilicate sol with uniform size particles and a porous amorphous aluminosilicate powder are useful as catalyst in petroleum cracking. Water is removed from the sol without gelling so that the particles become uniformly packed into aggregates having pores of substantially uniform size and coating said powder with a surface layer 0 to 15% by weight of a metal or metal oxide, said powder having a specific surface area of 30 to 750 m.sup.2 /g, a bulk density of 0.5 g/cc or more and substantially uniform size pore diameters of from 20 A to 250 A, with pore diameters of 20 A to 45 A having a uniformity such that at least 90% of the pore volume is made up of pores of from 0.6D to 1.4D and pore diameters of 45 A to 250 A having a uniformity such that at least 80% of the pore volume is made up of pores of from 0.6D to 1.4D, where D is the median pore diameter.
REFERENCES:
patent: 2688003 (1954-08-01), Ryland
patent: 2941958 (1960-06-01), Connor et al.
patent: 3284369 (1966-11-01), Bergna et al.
patent: 3346509 (1967-10-01), Stewart
patent: 3346512 (1967-10-01), Gladron et al.
patent: 3766057 (1973-10-01), Oguchi et al.
E. I. Du Pont de Nemours and Company
Gantz Delbert E.
Schmitkons G. E.
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