Multiple zone catalytic cracking of hydrocarbons
Patent
·
OSTI ID:6929278
This patent describes a method of cracking a heavy hydrocarbon feedstock and a light hydrocarbon feedstock in a riser reactor, the method producing spent catalyst and regenerated catalyst, the spent and regeneration catalyst comprising a large pore size aluminosilicate zeolite cracking catalyst selected form zeolite Y or USY. It comprises: contacting the light hydrocarbon feedstock with spent catalyst at an initial contact location in the riser; passing a suspension comprising the light hydrocarbon feedstock and the spent catalyst through the riser; introducing the heavy hydrocarbon feedstock into the suspension at a second location downstream of the initial contact location; and introducing the regenerated catalyst into the suspension at a location in the riser downstream of the initial contact location.
- Assignee:
- Mobil Oil Corp., Fairfax, VA (United States)
- Patent Number(s):
- A; US 5154818
- Application Number:
- PPN: US 7-749483
- OSTI ID:
- 6929278
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
HYDROCARBONS
INDUSTRIAL PLANTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
PETROLEUM REFINERIES
POROSITY
PYROLYSIS
SILICATE MINERALS
THERMOCHEMICAL PROCESSES
VISCOSITY
ZEOLITES
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
HYDROCARBONS
INDUSTRIAL PLANTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
PETROLEUM REFINERIES
POROSITY
PYROLYSIS
SILICATE MINERALS
THERMOCHEMICAL PROCESSES
VISCOSITY
ZEOLITES