Industrial application of fluidized-bed combustion, Phase 1. Quarterly technical progress report, July--September 1978

Technical Report · Sun Apr 01 00:00:00 EST 1979

DOI:https://doi.org/10.2172/6070115· OSTI ID:6070115

The purpose of this program is to develop a commercial atmospheric, natural circulation, fluidized-bed steam generator designed essentially as a package boiler, i.e., shop assembled and capable of shipment by rail. It must be capable of firing coal while meeting all environmental standards without the use of auxiliary SO/sub 2/ removal equipment and be competitive with other methods of coal firing for industrial practice. During this quarter, the construction of the Sub-Scale Unit was completed. The major construction changes include revision to the furnace grid plate and addition of refractory to the fourth furnace wall. All walls in the bed zone are now covered to reduce the heat removed from the fluidized bed. Sub-scale operational tests were run on two types of coal to compare carbon burnout of the char. Low combustion efficiency was experienced with the Old Ben coal. Improved combustion efficiency was achieved in a comparison test with a Western sub-bituminous coal. Demonstration plant site and plant approvals included final issuance of the Environmental Impact Assessment, approval by the State of Illinois of the Air Pollution Control Forms, and initial review and acceptance by EPA of the Prevention of Significant Deterioration (PSD) report. Final design work for the demonstration plant was highlighted by DOE approval of vendor selection for major components in the feedwater, air, and bed material systems. Specifications were prepared or initiated for elements of the fuel feed system, the ash handling system, and the various storage silos. Engineering progress was made inboth the analog and digital control systems. A study was initiated to compare the cost of a 250,000 lb/hr AFBC boiler with the cost of a pulverized coal boiler and flue gas scrubber.

• Research Organization: Combustion Engineering, Inc., Windsor, CT (United States)
• DOE Contract Number: EX-76-C-01-2473
• OSTI ID: 6070115
• Report Number(s): HCP/T2473-24
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
BOILERS
RESEARCH PROGRAMS
COAL
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
DESIGN
ENVIRONMENTAL EFFECTS
PERFORMANCE TESTING
PLANNING
BURNERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
ENERGY SOURCES
FOSSIL FUELS
FUELS
OXIDATION
TESTING
THERMOCHEMICAL PROCESSES
200100* - Fossil-Fueled Power Plants- Power Plants & Power Generation
014000 - Coal
Lignite
& Peat- Combustion