Fluid coking and gasification process with the addition of cracking catalysts

Claim 1

In an integrated coking and gasification process comprising the steps of: (a) reacting a carbonaceous chargestock in a coking zone containing a bed of fluidized solids maintained at fluid coking conditions, including a total pressure of about 0 to 150 psig, in the absence of added hydrogen, to produce a vapor phase product including normally liquid hydrocarbons, and coke, said coke depositing on said fluidized solids; (b) introducing a portion of said solids with the coke deposit thereon into a heating zone operated at a temperature greater than said coking zone temperature to heat said portion of said solids; (c) recycling a first portion of heated solids from said heating zone to said coking zone; (d) introducing a second portion of said heated solids to a fluid bed gasification zone maintained at a temperature greater than said heating zone, and (e) reacting said second portion of heated solids in said gasification zone with steam and an oxygen-containing gas to produce a partially gasified coke and a gaseous stream comprising hydrogen, the improvement which comprises adding to said carbonaceous chargestock solid cracking catalyst particles having a particle size of less than about 44 microns in diameter and recycling at least a portion of said partially gasified coke of step (e) to contact the vapor phase product above said bed of fluidized solids of said coking zone, said partially gasified coke comprising said cracking catalyst, said partially gasified coke serving as matrix wherein said cracking catalyst particles are dispersed.