FCC product withdrawal and separation

Patent · Tue Aug 19 04:00:00 EDT 1986

OSTI ID:5178091

Haddad, J H; Owen, H

A method is described of fluid catalytic cracking of a hydrocarbon feed, comprising the steps of: passing a mixture, as a suspension, of the hydrocarbon feed and a catalyst through a riser conversion zone contained within a reactor vessel and cracking the hydrocarbon feed in the riser conversion zone; guiding the mixture in an upward direction adjacent at least one riser cyclone separator inlet located in direct fluid communication with the riser conversion zone towards an inlet of at least one elongated catalyst conduit, the separator inlet and the catalyst conduit inlet having inlet flow directions making angles with respect to the mixture direction; removing at least a portion of catalyst remaining in the cracked hydrocarbon feed in the riser cyclone separator; passing a gaseous effluent from the riser cyclone separator to a downstream fractionation apparatus; passing a stripping gas into the elongated catalyst conduit counter-current to the catalyst; and passing catalyst flowing through the catalyst conduit and catalyst separated in the riser cyclone separator to a catalyst separated in the riser cyclone separator to a catalyst storage area within the reactor vessel.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4606814
• OSTI ID: 5178091
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTIONS
CHEMICAL REACTORS
CONCENTRATORS
CRACKING
CYCLONE SEPARATORS
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
EQUIPMENT
FLUIDIZED BEDS
FOSSIL FUELS
FRACTIONATION
FUELS
GASEOUS WASTES
INCIDENCE ANGLE
INERTIAL SEPARATORS
MIXTURES
PETROLEUM
POLLUTION CONTROL EQUIPMENT
PYROLYSIS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
WASTES