Current progress in coal-water slurry burner development

Conference · Sat Jan 01 04:00:00 EST 1983 · Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:5857314

Manfred, R K; Borio, R W; Smith, D A; Rini, M J; LaFlesh, R C; Marion, J L

A burner/atomizer combination has been developed by Combustion Engineering which will burn coal-water slurries (CWS) with satisfactory combustion efficiency over a wide load range. A detailed description of the atomizer design was included. In an attempt to reduce viscosity, the temperature of the slurry was raised and the temperature of the atomizing air was raised. Neither had a significant effect on the atomizing of CWS. The preliminary combustion testing results indicate that, with the proper combination of burner and atomizer design, coal-water slurry can be successfully burned with carbon conversion efficiencies in the range of 96 to 99%. This compares with a consistent 99/sup +/% carbon conversion efficiency for the base coal fired under similar conditions. Additional improvements in CWS combustion efficiency may be possible through further firing system development and refinement. This project has also successfully demonstrated that coal-water slurry could be reliably ignited in a cold furnace using conventional ignitors and low air preheat temperatures (250/sup 0/F). There were 23 illustrations and six tables of data also included.

• OSTI ID: 5857314
• Report Number(s): CONF-830303-
• Conference Information: Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 28:2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ATOMIZATION
BURNERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
DESIGN
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUEL SLURRIES
FUELS
HYDROGEN COMPOUNDS
MATERIALS
MIXTURES
OXIDATION
OXYGEN COMPOUNDS
SLURRIES
SUSPENSIONS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VISCOSITY
WATER