Development and demonstration of a lignite pelletizing process

Technical Report · Mon Mar 01 04:00:00 EST 1982

OSTI ID:5408352

Baker, A F; McKeever, R E; Deurbrouck, A W

Laboratory research and development studies show that lignite pellets having low moisture content and good mechanical strength can be produced with five percent or more of asphalt emulsion binder. The effects of binder composition, binder level, lignite particle size and extent of drying on the ability to produce satisfactory lignite pellets were studied. A pilot-scale test was successfully carried out to coordinate the unit operations of grinding, mixing, pelletizing, and pellet drying into a continuous process for the production of 50 tons of lignite pellets. Based on these results, a conceptual design and a cost analysis were prepared for a facility to produce 4000 tons per day of lignite pellets. The total cost of production was estimated to be about $18.00 per ton of pellets (mid-1979 dollars). Based upon a preliminary market assessment, it appears that lignite pellets complete with other coals. Although a market may exist in the industrial sector, data limitations prevented proper evaluation. The utility sector provides the greatest potential for lignite pellet usage.

• Research Organization: Department of Energy, Pittsburgh, PA (USA). Pittsburgh Mining Technology Center
• OSTI ID: 5408352
• Report Number(s): DOE/RI-PMTC-12-82; ON: DE82012007
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
BINDERS
BROWN COAL
CARBONACEOUS MATERIALS
COAL
COMPARATIVE EVALUATIONS
DATA
DEMONSTRATION PROGRAMS
DRYING
ENERGY SOURCES
EXPERIMENTAL DATA
FABRICATION
FOSSIL FUELS
FUELS
INFORMATION
LIGNITE
MARKETING RESEARCH
MATERIALS
MOLDING
NUMERICAL DATA
PELLETIZING