Fluidized bed coal/coke-combustion
Patent
·
OSTI ID:5917310
This patent describes an improvement in a coal combustion process wherein oxygen or an oxygen containing gas is added to a single, dense phase fluidized bed comprising coal particles having an average particle and average settling velocity, the dense bed comprising a lower one half and an upper one half, and wherein coal is burned in the dense bed to produce heat and a flue gas containing CO, CO{sub 2}, O{sub 2} and NO{sub x}. It comprises: adding 0.001 to 100 wt ppm of a CO combustion promoter to increase the combustion of CO to CO{sub 2} in the dense bed, the CO combustion promoter being disposed on a porous support and wherein the porous support particles have a settling velocity which is smaller than the settling velocity of the average particles in the dense phase fluidized bed whereby the CO combustion promoter segregates in the dense phase fluidized bed so that a majority of the combustion promoter is present in the upper one half of the dense bed.
- Assignee:
- Mobil Oil Corp., New York, NY (USA)
- Patent Number(s):
- A; US 4966087
- Application Number:
- PPN: US s 7-322732
- OSTI ID:
- 5917310
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fluidized bed combustion
NOx control in fluidized bed combustion
Two-zone fluid bed combustion or gasification process. [fluidized bed]
Patent
·
Mon Mar 04 23:00:00 EST 1991
·
OSTI ID:5383388
NOx control in fluidized bed combustion
Patent
·
Mon Mar 13 23:00:00 EST 1989
·
OSTI ID:5951308
Two-zone fluid bed combustion or gasification process. [fluidized bed]
Patent
·
Tue May 15 00:00:00 EDT 1979
·
OSTI ID:5783834