Patent ID: 11970664
Assignee: MARATHON PETROLEUM COMPANY LP
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 23:
24. A method of processing a gas oil, the method comprising:
cracking the gas oil into one or more hydrocarbon products in the presence of a catalyst in a reactor, thereby to cause one or more surfaces of the catalyst to be at least partially covered by coke so as to define a coked catalyst;
separating the coked catalyst from the one or more hydrocarbon products;
supplying a biomass-derived pyrolysis oil and the coked catalyst to a regenerator;
combusting the biomass-derived pyrolysis oil and coke from the coked catalyst in the regenerator, thereby to produce a regenerated catalyst and a flue gas;
and

adjusting an amount of the biomass-derived pyrolysis oil supplied to the regenerator based on a temperature within the regenerator or the reactor, thereby to maintain sufficient temperatures within the reactor to crack the gas oil and within the regenerator to combust the coke.