Calcium spray dryer waste management: Design guidelines: Final report

Technical Report · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:6222693

Calcium spray drying is a commercially available and applied technology used to control SO/sub 2/ emissions. This process is rapidly gaining utility acceptance. Because physical and chemical properties of wastes generated by calcium spray drying differ from those of conventional coal combustion by-products (fly ash and scrubber sludge) typical waste management practices may need to be altered. This report presents technical guidelines for designing and operating a calcium spray drying waste management system. Waste transfer, storage, pretreatment/conditioning, transport and disposal are addressed. The report briefly describes eighteen existing or planned calcium spray drying waste management systems. Results of waste property tests conducted as part of this study, and test data from other studies are reported and compared. Conceptual designs of both new and retrofit calcium spray drying waste management systems also are presented to demonstrate the economic impact of spray drying on waste management. Parametric cost sensitivity analyses illustrate the impact of significant design parameters on waste management costs. Existing calcium spray drying waste management experiences, as well as spray drying waste property data provided the basis for guideline development. Because existing calcium spray drying facilities burn low sulfur coal, this report is considered applicable only to calcium spray drying wastes produced from low sulfur coal. At this time, calcium spray drying is not expected to be feasible for high sulfur coal applications.

• Research Organization: ICF Northwest, Richland, WA (USA); Electric Power Research Inst., Palo Alto, CA (USA)
• OSTI ID: 6222693
• Report Number(s): EPRI-CS-5312; ON: TI87920589
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
20 FOSSIL-FUELED POWER PLANTS
DESULFURIZATION
WASTE MANAGEMENT
FLY ASH
WASTE DISPOSAL
SPRAY DRYING
ECONOMICS
FLUE GAS
LAND RECLAMATION
LEACHING
MONITORING
SANITARY LANDFILLS
AEROSOL WASTES
ASHES
CHEMICAL REACTIONS
DISSOLUTION
DRYING
GASEOUS WASTES
MANAGEMENT
RESIDUES
SEPARATION PROCESSES
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
510500 - Environment
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510200 - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
200200 - Fossil-Fueled Power Plants- Waste Management
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)