Process for control of multistage catalyst regeneration with full then partial CO combustion

Patent · Tue Apr 30 04:00:00 EDT 1991

OSTI ID:5144290

Owen, H; Schipper, P H

This patent describes a fluidized catalytic cracking process wherein a heavy hydrocarbon feed comprising hydrocarbons and sulfur and nitrogen compounds and having a boiling point above about 650 F. is catalytically cracked to lighter products. It comprises: catalytically cracking the feed in a catalytic cracking zone; separating the cracking zone effluent mixture; stripping the separated spent catalyst with a stripping gas; regenerating the stripped catalyst in a primary regeneration stage; discharging and separating the primary flue gas from partially regenerated catalyst; and recycling to the catalytic cracking process to regenerated catalyst.

• Assignee: Mobil Oil Corp., Fairfax, VA (USA)
• Patent Number(s): A; US 5011592
• Application Number: PPN: US 7-554309
• OSTI ID: 5144290
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010409 -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
400201 -- Chemical & Physicochemical Properties
CATALYSTS
CATALYTIC CRACKING
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COKE
COMBUSTION
CRACKING
DECOMPOSITION
FLUE GAS
FLUIDIZED-BED COMBUSTION
GASEOUS WASTES
HYDROCARBONS
MANAGEMENT
MATERIALS RECOVERY
ORGANIC COMPOUNDS
OXIDATION
PROCESSING
PYROLYSIS
RECOVERY
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VISCOSITY
WASTE MANAGEMENT
WASTE PROCESSING
WASTES