Catalyst regeneration method with three-zone combustion gas addition
Patent
·
OSTI ID:5806162
This patent describes improvement in a method of operating a continuous regeneration system for a reforming process, the regeneration section including a burn zone, a halogenation zone, and a drying zone in serial progression, comprising: passing catalyst particles; continuously circulating the recycle gas; passing catalyst particles form the burn zone; continuously circulating the halogen-containing gas; a passing catalyst particles from the halogenation zone to a drying zone and contacting the catalyst particles with an oxygen-containing drying gas in the drying zone; passing the oxygen-containing drying gas to a lower portion of the drying zone; passing at least a portion of the oxygen-containing drying gas, passing at least a portion of the halogenation gas into the burn zone to provide, in part, combustion gas for the burn zone. The improvement comprises: measuring the oxygen concentration of the recycle gas to determine the required addition of combustion gas to the regeneration zone and adding at least a portion of the combustion gas to satisfy the required addition of combustion gas to the portion of the halogenation gas flowing from the halogenation gas outlet to the halogenation gas inlet and the combustion gas is in addition to any other oxygen-containing gas that enters the halogenation loop.
- Assignee:
- UOP, Des Plaines, IL (United States)
- Patent Number(s):
- US 5053371; A
- Application Number:
- PPN: US 7-608518
- OSTI ID:
- 5806162
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010408* -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
010409 -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
CATALYTIC CRACKING
CATALYTIC HYDROSOLVATION PROCESS
CATALYTIC REFORMING
CFFC PROCESS
CHEMICAL REACTIONS
CLEAN COKE PROCESS
COAL LIQUEFACTION
COKE
CRACKING
DECOMPOSITION
FLUE GAS
GASEOUS WASTES
HALOGENATION
LIQUEFACTION
PYROLYSIS
RECYCLING
REFORMER PROCESSES
THERMOCHEMICAL PROCESSES
WASTES
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010408* -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
010409 -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
CATALYTIC CRACKING
CATALYTIC HYDROSOLVATION PROCESS
CATALYTIC REFORMING
CFFC PROCESS
CHEMICAL REACTIONS
CLEAN COKE PROCESS
COAL LIQUEFACTION
COKE
CRACKING
DECOMPOSITION
FLUE GAS
GASEOUS WASTES
HALOGENATION
LIQUEFACTION
PYROLYSIS
RECYCLING
REFORMER PROCESSES
THERMOCHEMICAL PROCESSES
WASTES