Apparatus for separating catalysts in FCC closed cyclone system

Patent · Tue Oct 18 04:00:00 EDT 1988

OSTI ID:6544193

Haddad, J H; Owen, H

This patent describes an apparatus for fluid catalytic cracking of a hydrocarbon feed, comprising: a reactor vessel comprising a riser conversion zone formed as a vertically disposed elongated tubular conduit having an upstream end and a downstream end, the downstream end terminating within the reactor vessel; means for introducing a suspension of hydrocarbon feed and catalyst into an upstream end of the riser conversion zone to produce a mixture of catalyst and cracked hydrocarbon feed traveling in an upward direction of flow towards the downstream end of the riser conversion zone; catalyst conduit means, the catalyst conduit means comprising a horizontal portion for communicating with the downstream end of the conversion zone and for conveying the mixture in a first direction, and a vertical portion for subsequently conveying the mixture downwardly to a catalyst storage area within the reactor vessel, the catalyst conduit horizontal portion merging with the catalyst conduit vertical portion and being in communication with the catalyst conduit vertical portion; a riser cyclone separator means, having an inlet disposed adjacent the horizontal portion of the catalyst conduit means, an effluent exhaust and a catalyst exhaust, the inlet having an inlet flow direction and being in fluid communication with the catalyst conduit means, the mixture direction and the inlet flow direction lying in a substantially horizontal plane; conduit means for conducting the separator means effluent exhaust out of the reactor vessel; and a dipleg for conveying the separator catalyst from the cyclone catalyst exhaust to the catalyst storage area.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4778660
• OSTI ID: 6544193
• 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
DESIGN
EQUIPMENT
HYDROCARBONS
INERTIAL SEPARATORS
ORGANIC COMPOUNDS
PIPES
POLLUTION CONTROL EQUIPMENT
PYROLYSIS
SEPARATION EQUIPMENT
THERMOCHEMICAL PROCESSES