Catalytic cracking process with partial CO combustion

Patent · Tue Dec 25 04:00:00 EST 1990

OSTI ID:5598465

Huh, B K; Yan, T Y

This patent describes an improvement in a catalytic cracking process for cracking of hydrocarbons by contacting a hot, regenerated, solid zeolite cracking catalyst with a crackable hydrocarbon feed containing vanadium in a cracking zone; cracking the feed to lighter hydrocarbons while depositing coke and vanadium on the catalyst; disengaging coked catalyst from lighter hydrocarbons; passing coked catalyst to a regenerator zone and contacting coked catalyst with an oxygen containing gas to burn coke from the catalyst and produce hot, regenerated catalyst and flue gas comprising CO and CO{sub 2}; returning the regenerated catalyst to the cracking zone. It comprises adding to the cracking catalyst about 0.1 to 10 wt. % of separate particles of a solid additive material, which has more affinity for vanadium than the zeolite cracking catalyst; and limiting the flow of oxygen containing gas to the regenerator to maintain at least 1.0 mole % CO in the flue gas.

• Assignee: Mobil Oil Corp., Fairfax, VA (USA)
• Patent Number(s): US 4980050; A
• Application Number: PPN: US 7-206241
• OSTI ID: 5598465
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020800 -- Petroleum-- Waste Management
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
CRACKING
DECOMPOSITION
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PYROLYSIS
REGENERATION
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
VANADIUM
ZEOLITES