Systems and methods for processing a catalyst regenerator flue gas
OwnerYe Mon Cheninventor
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Abstract
A system comprising a reactor comprising a hydrocarbon feedstock and a regenerated catalyst under catalytic cracking conditions to yield a cracked reactor product and a spent catalyst, the spent catalyst comprising a hydrocarbon layer; a regenerator comprising a spent catalyst feedstock and an oxygen containing gas feedstock to burn at least a portion of the hydrocarbon layer to regenerate the spent catalyst, the regenerator output comprising a first conduit comprising a regenerated catalyst, and a second conduit comprising a flue gas, the first and second conduits fluidly connected to the reactor; the second conduit fluidly connected to a heated oxygen containing gas source; and a mixing chamber fluidly connected to the second conduit comprising the flue gas.
Claims10
A system comprising:
- reactor means for receiving a hydrocarbon feedstock and a regenerated catalyst under catalytic cracking conditions to yield a cracked reactor product and a spent catalyst comprises a hydrocarbon layer;
- regenerator means for receiving the spent catalyst and an oxygen containing gas and for burning at least a portion of the hydrocarbon layer to regenerate the spent catalyst, wherein regenerator means includes a first conduit fluidly connected to reactor means whereby regenerated spent catalyst passes to reactor means;
- a second conduit
- and mixing chamber means, wherein the second conduit is fluidly connected with the second conduit;
- and
- wherein mixing chamber means comprises an orifice chamber.
(canceled)
A method comprising:
- catalytically cracking a hydrocarbon feedstock within a reactor zone by contacting under suitable catalytic cracking conditions within said reactor zone said hydrocarbon feedstock with a catalyst to yield a cracked reactor product comprising a cracked hydrocarbon product and a spent catalyst;
- passing said spent catalyst to a regenerator to burn a coke layer off of the spent catalyst to regenerate the catalyst and generate a flue gas;
- the regenerator operating in a total combustion mode so that the flue gas comprises at least 0.5% by volume of oxygen;
- adding a heated oxygen containing gas to the flue gas;
- and
- mixing the flue gas with the heated oxygen containing gas in a mixing chamber.
Dependencies are inferred from the claim text.