A granulation/sintering method for the codisposal of solid residues from coal conversion processes
Conference
·
· Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States)
OSTI ID:6508115
- Ames Lab., U.S.D.O.E. and Dept. of Chemical Engineering, Iowa State Univ., Ames, IA (US)
A stabilization process for coal cleaning and coal combustion-related wastes has been developed that uses the energy derived from the fuel contained in the coal cleaning waste. The wastes are pulverized, when necessary, formed into granules in a rotary pan agglomerator, and then fired to a sintering temperature. The resulting readily disposable product consists of rock-hard granules that are highly resistant to environmental degradation. The green (nondried and nonfired) granules satisfy durability tests that measure the capability to be handled and stored. The sintered granules meet requirements of the standard ASTM and EP leaching tests and a freeze-thaw cycle test. The strength of the sintered granules compares favorably with the strength of natural aggregates. The process has been applied to coal cleaning refuse alone and to refuse/fly ash and refuse/FGD sludge mixtures.
- OSTI ID:
- 6508115
- Report Number(s):
- CONF-8806136-
- Conference Information:
- Journal Name: Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States) Journal Volume: 33:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
010800 -- Coal
Lignite
& Peat-- Waste Management
AEROSOL WASTES
AGGLOMERATION
ASHES
CARBONACEOUS MATERIALS
CLEANING
COAL
COMBUSTION PROPERTIES
DISSOLUTION
ENERGY SOURCES
FABRICATION
FLY ASH
FOSSIL FUELS
FUELS
LEACHING
MANAGEMENT
MATERIALS
PULVERIZED FUELS
RESIDUES
SEPARATION PROCESSES
SINTERING
STABILIZATION
WASTE MANAGEMENT
WASTES
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
010800 -- Coal
Lignite
& Peat-- Waste Management
AEROSOL WASTES
AGGLOMERATION
ASHES
CARBONACEOUS MATERIALS
CLEANING
COAL
COMBUSTION PROPERTIES
DISSOLUTION
ENERGY SOURCES
FABRICATION
FLY ASH
FOSSIL FUELS
FUELS
LEACHING
MANAGEMENT
MATERIALS
PULVERIZED FUELS
RESIDUES
SEPARATION PROCESSES
SINTERING
STABILIZATION
WASTE MANAGEMENT
WASTES