Method and apparatus for controlling moisture by flue gas segregation
Patent
·
OSTI ID:5678352
This patent describes a method of reducing the water concentration during the combustion of coke in a process for removing coke from catalyst particles in a regeneration zone through which the particles move in at least semi-continuous flow. It includes passing catalyst particles containing coke deposits into the regeneration zone and withdrawing regenerated catalyst particles from the regeneration zone; forming an elongated bed of the particles in a combustion section of the regeneration zone having an inlet end where catalyst particles containing coke deposits enter the bed and an outlet end where regenerated catalyst particles are withdrawn from the bed after the combustion of coke from the particles and a first and a second elongated side open for transverse gas flow through the bed; at least periodically moving the particles through the bed by withdrawing regenerated catalyst particles from an outlet end of the bed and adding catalyst particles containing coke deposits to an inlet end of the bed; passing an oxygen-containing recycle gas stream through the first elongated side and through the bed to combust coke and producing a flue gas comprising by-products of coke combustion including CO{sub 2} and water, and passing the flue gas out of the bed through the second elongated side.
- Assignee:
- UOP, Des Plaines, IL (United States)
- Patent Number(s):
- US 5001095; A
- Application Number:
- PPN: US 7-437149
- OSTI ID:
- 5678352
- Country of Publication:
- United States
- Language:
- English
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