Conversion of side by side FCC unit

Patent · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:6423478

Cetinkaya, I B

A method is described for improving a side by side reactor/regenerator arrangement by converting the side by side reactor/regenerator arrangement into a three-stage regenerator, said side by side reactor/regenerator arrangement having a regenerator vessel, a first reactor located to the side of the regenerator vessel, an external conduit for transporting catalyst from a lower portion of said regenerator vessel to a riser conduit, said riser conduit transporting said catalyst from said external conduit to said first reactor vessel, means for adding spent catalyst to said regenerator vessel, means for recovering regeneration gas from an upper portion of said regenerator vessel and a stripping vessel subadjacent to and in open communication with said reactor vessel, said improvement comprising: (a) providing said side by side reactor/regenerator arrangement; (b) providing means for distributing catalyst across a lower portion of said reactor vessel and providing a cyclone separator to recover regeneration gas from the upper end of said reactor vessel to modify said reactor vessel to function as a second-stage regeneration vessel; (c) installing means for distributing an oxygen-containing gas into a lower portion of said stripping vessel and providing a withdrawal conduit for withdrawing catalyst from said stripping vessel to modify said stripping vessel to function as a third-stage regeneration vessel.

• Assignee: UOP, Des Plaines, IL (United States)
• Patent Number(s): US 5215720; A
• Application Number: PPN: US 7-662655
• OSTI ID: 6423478
• 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
DISTRIBUTION
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUELS
GASES
INERTIAL SEPARATORS
INSTALLATION
MANAGEMENT
MATERIALS RECOVERY
OPERATION
PETROLEUM
POLLUTION CONTROL EQUIPMENT
PROCESSING
PYROLYSIS
REGENERATION
RETROFITTING
SEPARATION EQUIPMENT
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING