Production of synthesis gas and related products via the cracking of heavy oil feeds

Patent · Tue May 17 04:00:00 EDT 1988

OSTI ID:6961634

Hettinger, Jr, W P

In a process for cracking a heavy oil feed having a Conradson carbon number above 2 wt. % and being a member selected from the group consisting of topped crudes, reduced crudes, vacuum bottoms, heavy asphaltic crudes, coal crude oils, shale oils, and tar sands oil products, which process comprises contacting in a riser cracking zone the heavy oil feed with a fluid hydrocarbon cracking catalyst to form products comprising gasoline and coke on catalyst, the coke containing hydrogen, and thereafter regenerating the catalyst in a regeneration zone by removing at least a portion of the coke to provide as regenerated catalyst, and passing the regenerated catalyst to the cracking zone, the improvement is described which comprises: A. cracking of the heavy oil feed in a progressive flow riser cracking zone at an outlet temperature of about 950/sup 0/F to 1150F in the substantial absence of added molecular hydrogen and for a period of time within the range of 0.5 second to 4 seconds and in the presence of the catalyst; B. separating the coked catalyst from the gasiform effluent and regenerating the coked catalyst in a regeneration zone consisting of a first regeneration stage and a second regeneration stage; C. separating the gasiform efficient into the hydrocarbon products, the hydrogen-rich gaseous product, and the second water condensation product; and D. treating the hydrogen-rich gaseous product to remove the ammonia and the acidic components therefrom and to provide a purified hydrogen-rich gaseous product.

• Assignee: Ashland Oil, Inc., Ashland, KY
• Patent Number(s): US 4744883
• OSTI ID: 6961634
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMICAL REACTORS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FLUE GAS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASEOUS WASTES
GASES
HYDROGEN COMPOUNDS
PETROLEUM
PRODUCTION
PYROLYSIS
RECYCLING
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VISCOSITY
WASTES
YIELDS