Control of slagging in coal-fired utility boiler furnaces: a case history of the use of copper oxychloride as a fireside additive

Conference · Fri Jan 01 04:00:00 EST 1982 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5528582

Sanyal, A; Coleman, C R

Two 4 week trials were carried out in a 113 MW front wall, coal-fired utility boiler where coal was doped with copper oxychloride at a concentration of 2ppm by incorporation in the coal bunker and by direct insertion into the pf feeder. The coal's lignitic type ash had previously caused severe slagging in the lower furnace area which necessitated a 30% load reduction for eight out of every twenty four hours. The use of the additive made it possible for the unit to operate at its nominal capacity almost continuously during the trial periods. The hard, vitreous slag which formed prior to the use of the additive was transformed into friable and porous deposits, quantified by the change in their density and porosity values.

• Research Organization: Institute of Energy
• OSTI ID: 5528582
• Report Number(s): CONF-821018-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 82-JPGC-FU-1
• 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
ADDITIVES
ASHES
BOILERS
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COAL
COMBUSTION
COPPER CHLORIDES
COPPER COMPOUNDS
COPPER HALIDES
DENSITY
ELECTRIC UTILITIES
ENERGY SOURCES
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
FURNACES
HALIDES
HALOGEN COMPOUNDS
LIGNITE
MATERIALS
OXIDATION
PHYSICAL PROPERTIES
POROSITY
POWER PLANTS
PUBLIC UTILITIES
RESIDUES
SLAGS
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WALLS