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US 11,845,072 B2Granted
Process and apparatus for indirect catalyst heating
AssigneeUop LLC
InventorsRichard A. Johnson, II, John Senetar
Life of this patent
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Abstract
A process and apparatus for indirect heating of catalyst in the regeneration zone is disclosed. A hot flue gas flows within a heating tube and the catalyst to be heated flows outside the heating tube. The hot flue gas is generated by igniting a fuel stream. The hot flue gas is generated directly in the heating tube or is generated in a separate burner outside the heating tube.
Claims9
A process for heating a catalyst in a regeneration zone comprising a regeneration vessel and a plurality of heating tubes, the process comprises:
- passing a catalyst stream from a reactor vessel to a regeneration vessel;
- passing a hot flue gas inside a heating tube;
- contacting the heating tube with the catalyst stream to heat the catalyst stream and produce a hot regenerated catalyst stream;
- and
- passing the hot regenerated catalyst stream to the reactor vessel.
2 more elements
Dependencies are inferred from the claim text.