Catalytic cracking catalysts for high octane gasoline products

Patent · Tue May 17 04:00:00 EDT 1988

OSTI ID:7052894

Chiang, R L; Staniulis, M T

This patent describes the process for cracking a hydrocarbon feedstock to produce lower boiling hydrocarbons to provide products having increased gasoline octane number wherein the process comprises contacting the hydrocarbon feedstock with a cracking catalyst comprising: (a) a aluminosilicate which has a mole ratio of oxides in the dehydrated state of (0.85-1.1)M/sub 2/n/O:Al/sub 2/O/sub 3/:xSiO/sub 2/ wherein M is a cation having a valence of ''n'', the SiO/sub 2/ to Al/sub 2/O/sub 3/ ratio ''x'' has a value greater than 6 to about 11, 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; (b) an inorganic oxide matrix; (c) having from greater than zero to less than 5 weight percent of at least one rare earth, expressed as the oxide, based on the weight of the aluminosilicate employed in such catalyst; and (d) having less than 1.2 weight percent Na/sub 2/O based on the weight of the aluminosilicate employed in such catalyst.

• Assignee: Union Carbide Corp., Danbury, CT
• Patent Number(s): US 4744886
• OSTI ID: 7052894
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
ANTIKNOCK RATINGS
CATALYSTS
CATALYTIC CRACKING
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COHERENT SCATTERING
CRACKING
DECOMPOSITION
DIFFRACTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASOLINE
HYDROCARBONS
LIQUID FUELS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM PRODUCTS
PRODUCTION
PYROLYSIS
SCATTERING
SILICATES
SILICON COMPOUNDS
STRUCTURAL CHEMICAL ANALYSIS
THERMOCHEMICAL PROCESSES
X-RAY DIFFRACTION