Upgrading jet fuel using spent FCC equillibruim catalyst
AssigneePhillips 66 Company
InventorsJohn B. Green, Cory B. Phillips, Laura Lee Young, Swati Thakur, Leonard Nyadong
Life of this patent
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Abstract
Spent zeolite equilibrium catalyst from the fluidized catalytic cracker has a useful function as an adsorbent for jet fuel. Redirecting such spent catalyst saves costs for refinery operations in two ways. The first is by avoiding the costs for disposing of such catalyst as hazardous waste. The second is to reduce the cost of procuring sorbent for the jet fuel decontamination process. Since zeolite is primarily silica and conventional sorbents are also silica, zeolite catalysts are chemically similar. And the equilibrium catalyst may be regenerated in the FCC after its becomes saturated with jet fuel contaminants and re-used.
Claims6
A process for finishing raw kerosene in a refinery to remove organic and metallic contaminants and produce finished, on-spec the jet fuel, where the process comprises:
- producing a kerosene cut in the refinery,
- providing a fluidized catalytic cracker in the refinery;
- recovering equilibrium zeolite catalyst from the fluidized catalytic cracker in a refinery;
- providing a decontamination vessel for adsorbing the contaminants from the kerosene cut produced in the refinery;
- adding recovered equilibrium zeolite catalyst from the fluidized catalytic cracker into the decontamination vessel for decontamination of the kerosene;
- and
- passing the kerosene through the decontamination vessel so that the recovered equilibrium catalyst adsorbs the contaminants therefrom to produce finished and polished on-spec jet fuel.
Dependencies are inferred from the claim text.