Drying of western coals improves boiler performance

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · Power (N.Y.); (United States)

OSTI ID:7268149

A coal-drying test program has revealed that the removal of about 10 percent of the moisture, most of it inherent, in low-sulfur lignites and western subbituminous coals can offer several potential benefits, including (1) lower transportation costs, (2) higher boiler capacity, availability, and efficiency, (3) fewer coal-storage problems, and (4) less boiler maintenance. The test program has attracted considerable attention among electric utilities because most companies east of the Mississippi River have boilers designed for burning a lower-moisture coal than is found in the West. In order for these utilities to burn low-sulfur western coals without derating their boilers, a portion of the inherent moisture must be eliminated. Removal of this water by drying, and subsequent processing with an oil spray, enriches the coal and makes it easier to burn.

• OSTI ID: 7268149
• Journal Information: Power (N.Y.); (United States), Journal Name: Power (N.Y.); (United States) Vol. 120:7; ISSN POWEA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
014000 -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
BOILERS
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COST
DESIGN
DRYERS
DRYING
EFFICIENCY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
LIGNITE
MAINTENANCE
MOISTURE
NONMETALS
OXIDATION
PUBLIC UTILITIES
REMOVAL
STORAGE
SUBBITUMINOUS COAL
SULFUR
TRANSPORT