Closed cyclone FCC catalyst separation method and apparatus

Patent Application · Tue Aug 13 00:00:00 EDT 1991

OSTI ID:5793727

Haddad, J H; Owen, H; Schatz, W

This patent describes a method of fluid catalytic cracking of a hydrocarbon feed. It comprises passing a mixture of the hydrocarbon feed and a catalyst as a suspension, through a riser conversion zone and cracking the hydrocarbon feed in the riser conversion zone; passing the mixture from the riser conversion zone through a first enclosed conduit to a riser cyclone separator; separating at least a portion of the catalyst from the mixture in the riser cyclone separator; passing gaseous effluent from the riser cyclone separator through a second conduit to a primary cyclone separator; passing cracked hydrocarbons, as an effluent from the primary cyclone separator, to a downstream fractionation apparatus; contacting the separated catalyst from the riser cyclone separator and from the primary cyclone separator in a stripping zone with a stripping gas to strip hydrocarbons from the separated catalyst; and removing stripping gas and stripped hydrocarbons removed from the catalyst by the stripping gas from the reactor vessel, and passing the separated catalyst from the stripping zone to a regeneration vessel.

• Assignee: Mobil Oil Corp., Fairfax, VA (USA)
• Application Number: PPN: US 7-472550
• OSTI ID: 5793727
• Resource Relation: Patent File Date: 30 Jan 1990
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHEMICAL REACTORS
CYCLONE SEPARATORS
HYDROCARBONS
CATALYTIC CRACKING
PETROLEUM REFINERIES
POLLUTION CONTROL EQUIPMENT
AIR POLLUTION CONTROL
CATALYTIC CONVERTERS
CHEMICAL REACTIONS
CONCENTRATORS
CONTROL
CRACKING
DECOMPOSITION
EQUIPMENT
INDUSTRIAL PLANTS
INERTIAL SEPARATORS
ORGANIC COMPOUNDS
POLLUTION CONTROL
PYROLYSIS
SEPARATION EQUIPMENT
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
020900 - Petroleum- Environmental Aspects
400201 - Chemical & Physicochemical Properties