Coke reduction in catalytic cracking

Patent · Tue Jun 12 04:00:00 EDT 1990

OSTI ID:6633716

Huss, A; Schwartz, A B

This patent describes a catalytic cracking process, undertaken in the presence of a large pore size zeolite catalyst, in a catalytic cracking zone, to upgrade a heavy hydrocarbon feedstock to produce gasoline, during which upgrade, coke formation on the large pore size zeolite catalyst occurs, wherein the large pore size zeolite catalyst containing the coke during cracking is conveyed to a regenerator for regeneration and, after regeneration, is reduced in coke content and is conveyed to the zone. It comprises: passing a heavy hydrocarbon feed through the zone; increasing the feed conversion in the zone so that the coke produced equals, that coke formation on the large pore zeolite catalyst; and recovering upgraded effluent.

• Assignee: Mobil Oil Corp., New York, NY (USA)
• Patent Number(s): A; US 4933069
• Application Number: PPN: US 7-250802A
• OSTI ID: 6633716
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYTIC CRACKING
CHEMICAL REACTIONS
COKE
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASOLINE
INHIBITION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
PETROLEUM
PETROLEUM PRODUCTS
PRODUCTION
PYROLYSIS
THERMOCHEMICAL PROCESSES
ZEOLITES