Pressurized fluidized-bed combustion program

Technical Report · Fri Sep 01 00:00:00 EDT 1989

DOI:https://doi.org/10.2172/6780524· OSTI ID:6780524

The goal of the Pressurized Fluidized Bed Combustion (PFBC) Program is to develop a scientific and engineering data base by the 1990's so that the private sector can demonstrate and commercialize PFB systems as a replacement for oil and gas-fired combustion systems within the utility market and as a more economical and environmentally acceptable coal-fired system for the utility market. PFBC involves burning coal in a bed of limestone (calcium carbonate) or dolomite (calcium magnesium carbonate) inside a furnace operated at elevated pressure and with bed temperatures normally in the range of 1400{degree}F--1700{degree}F. The bed material (sorbent) is fluidized (suspended) by the injection of air at the bottom of the bed. Sulfur dioxide (SO{sub 2}), released during combustion of the coal, reacts with the sorbent (limestone or dolomite) and forms a solid sulfate that can be discharged from the system as a dry solid waste along with the coal ash. Advantages offered over other competing technologies for utility applications include high-efficiency, lower capital and operating costs (therefore lower-cost electricity), superior environmental performance, ability to burn a wide variety of fuels (including high-sulfur coals) and modularity (with no great cost penalty for loss of economies of scale). In addition, PFBC has potential as a retrofit technology capable of pollution control and capacity boosting for existing coal-fired power plants, as well as a repowering technology for existing oil and gas-fired steam plants. 3 tabs.

• Research Organization: USDOE Assistant Secretary for Fossil Energy, Washington, DC (USA). Office of the Deputy Assistant Secretary for Coal Technology
• Sponsoring Organization: DOE/FE
• OSTI ID: 6780524
• Report Number(s): DOE/FE-0180P; ON: DE90012711
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
29 ENERGY PLANNING
POLICY AND ECONOMY
COAL
FLUIDIZED-BED COMBUSTION
HOT GAS CLEANUP
MARKET
POLLUTION CONTROL
PROGRAM MANAGEMENT
RESEARCH PROGRAMS
US DOE
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMBUSTION
CONTROL
ENERGY SOURCES
FOSSIL FUELS
FUELS
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
OXIDATION
PURIFICATION
THERMOCHEMICAL PROCESSES
US ORGANIZATIONS
014000* - Coal
Lignite
& Peat- Combustion
294001 - Energy Planning & Policy- Coal