TIDD PFBC Demonstration Project
In fluidized bed combustion, coal and sorbent (dolomite or limestone) are fed into a boiler in which air, entering from the bottom, maintains the bed material in a highly turbulent suspended state called fluidization. This turbulence creates good contact between the air and fuel, allowing for high combustion efficiency and excellent adsorption of sulfur dioxide (SO{sub 2}) during the combustion process. In PFBC applications, pressurized air is supplied to the combustor. Pressurizing the air concentrates a larger quantity of oxygen per unit volume. This results in a lower velocity of air through the fuel bed. The lower velocity reduces the total height required for the bed and freeboard above the bed. Also, a smaller plan area is required for the bed area as compared to an atmospheric fluidized bed. This has the advantage of requiring a much smaller pressure vessel to contain the boiler enclosure. The mean bed temperature of a pressurized fluidized bed combustor is typically maintained in the range 1540 to 1580 F. This is well below the ash fusion temperature of coal, yet above the ignition temperature of the coal. Advantages of the low bed temperature are no slag formation and a reduction of NO{sub x} emissions to less than half that of a conventional boiler. The Tidd Plant is a combined cycle pressurized fluidized bed combustion system with a topping gas cycle and a bottoming steam cycle.
- Research Organization:
- Ohio Power Co., Columbus, OH (United States); American Electric Power Service Corp., Columbus, OH (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-87MC24132
- OSTI ID:
- 10160906
- Report Number(s):
- DOE/MC/24132--3746; ON: DE94004120; BR: AZ0105000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Tidd PFBC Demonstration Project. Final report, March 1, 1994--March 30, 1995
Second year operation of the Tidd PFBC Demonstration Plant
Second year operation of the Tidd PFBC Demonstration Plant
Technical Report
·
Tue Aug 01 00:00:00 EDT 1995
·
OSTI ID:188533
Second year operation of the Tidd PFBC Demonstration Plant
Technical Report
·
Sat Oct 31 23:00:00 EST 1992
·
OSTI ID:10190544
Second year operation of the Tidd PFBC Demonstration Plant
Conference
·
Tue Dec 31 23:00:00 EST 1991
·
OSTI ID:7191807