Performance testing with high ash Indian coals and coal washery rejects in an AFBC pilot plant

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6444399

Krishnan, R P; Anthony, J; Rajavel, M; Srinivasan, S; Rao, A J; Rajaram, S

Under a cooperative agreement between the US Agency for International Development (USAID) and the Government of India (GOI), a joint research project in fluidized bed combustion (FBC) is being carried out by the Bharat Heavy Electricals Ltd. (BHEL), India, and the Oak Ridge National Laboratory (ORNL). The project is aimed at obtaining basic engineering data on the combustion of high-ash Indian coals (up to 45% ash), coal washery rejects (up to 70% ash), and high-sulfur (up to 5%) US coals. Quantitative measurements of freeboard combustion, freeboard heat transfer, and freeboard gas composition are of particular interest. A FBC test facility has been erected at BHEL, Trichy. Tests have been conducted on a sub-bituminous Indian coal (38% ash) and a washery reject (65% ash) with and without flyash reinjection. The combustion efficiency was typically 95-98% for the coal and 85-90% for the rejects. Freeboard combustion was 6-9% for the coal and 3-6% for the rejects. 11 refs., 6 figs., 2 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6444399
• Report Number(s): CONF-890402-4; ON: DE89007832
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
014000* -- Coal
Lignite
& Peat-- Combustion
ASH CONTENT
ASIA
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
DEVELOPING COUNTRIES
EFFICIENCY
EMISSION
ENERGY SOURCES
ENERGY TRANSFER
FLUIDIZATION
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
HEAT TRANSFER
INDIA
MATERIALS
NORTH AMERICA
OXIDATION
PERFORMANCE TESTING
RECYCLING
SUBBITUMINOUS COAL
SULFUR CONTENT
TESTING
THERMOCHEMICAL PROCESSES
USA