Multiple feed point catalytic cracking apparatus using elutriable catalyst mixture

Patent · Tue Oct 01 04:00:00 EDT 1991

OSTI ID:5796396

Herbst, J A; Owen, H; Schipper, P H

This patent describes an apparatus for the catalytic cracking of heavy feed to lighter products comprising a vertical riser reactor adapted to maintain a fluidizable catalyst and the heavy feed as a dilute phase the reactor having an inlet in a base portion for hot, regenerated catalyst and feed and an outlet in a top portion of the reactor for cracked products. It comprises a lower elutriating section comprising at least one inlet for a hydrocarbon feed and an inlet for an elutriable mixture of catalyst particles, the lower elutriating section having an average cross-sectional area and comprising a lower section having a cross-sectional area and an upper section having a reduced cross-sectional area relative to the lower section, and having an upper outlet in the upper section for the discharge of cracked products and catalyst; a dilute phase transport riser means having an average cross-sectional area and a lower elutriating section, at least one inlet for a hydrocarbon containing feed, an upper elutriating riser section having an average cross-sectional area and an inlet in a base portion connective with the dilute phase transport riser outlet.

• Assignee: Mobil Oil Corp., Fairfax, VA (United States)
• Patent Number(s): A; US 5053204
• Application Number: PPN: US 7-500357
• OSTI ID: 5796396
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
10 SYNTHETIC FUELS
100200 -- Synthetic Fuels-- Production-- (1990-)
BY-PRODUCTS
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELUTRIATION
FLUIDIZATION
FLUIDIZED BED REACTORS
FUEL DISPERSION REACTORS
HOMOGENEOUS REACTORS
HYDROCARBONS
INDUSTRIAL PLANTS
ORGANIC COMPOUNDS
PETROLEUM REFINERIES
PYROLYSIS
REACTORS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VISCOSITY