Ash fouling potentials of Western subbituminous coal as determined in a pilot plant test furnace

Conference · Thu Jan 01 04:00:00 EST 1976

OSTI ID:7320682

Tufte, P H; Gronhovd, G H; Sondreal, E A; Selle, S J

The fouling potential of subbituminous coals is proportional to sodium content, tending to plateau at higher sodium levels. It increases exponentially with coal ash content at all sodium levels. At similar sodium and ash levels, subbituminous coal fouling potentials are at least as great as of lignite. On the basis of samples tested and other ash survey work on Western coals, there is no evidence of the simultaneous occurrence of high sodium and high ash, a coincidental condition that would lead to high fouling in subbituminous coals. Because of this, subbituminous coals in general can be expected to show less ash fouling problems than lignite coals. In general, experience burning Western coals in Eastern boilers would indicate that samples having high sodium would give very severe fouling conditions by Eastern standards, whereas samples with low sodium would give fouling experiences comparable to the normal experience with Eastern coals.

• Research Organization: Energy Research and Development Administration, Grand Forks, ND (USA). Grand Forks Energy Research Center
• OSTI ID: 7320682
• Report Number(s): CONF-760469-5
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ALKALI METALS
ASHES
BOILERS
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL
COMBUSTION
COMPARATIVE EVALUATIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FOULING
FUELS
LIGNITE
METALS
NORTH AMERICA
OXIDATION
RESIDUES
SODIUM
SUBBITUMINOUS COAL
USA