Combustion of low-grade material in fluidized beds

Journal Article · Sat Jan 01 04:00:00 EST 1977 · AIChE Symp. Ser.; (United States)

OSTI ID:7044001

Hodgkinson, N; Thurlow, G G

Combustion of waste materials and fuels of low calorific value in fluidized combustion systems has been shown by tests on a series of experimental combustors up to 3 sq ft to be efficient and economic, with minimal pollution. The materials tested include sewage, oil residue, lignites, chars, and wet tailings from coal washing, which consists of a slurry of coal, clays, and water. By burning the coal content in a fluidized bed, water evaporates, leaving a dry granular material which is stable and safe for tipping or which may have a commercial use as a refractory material and artificial aggregate. Pilot-scale tests and design studies on full-scale units are used to illustrate the design parameters and engineering requirements of a satisfactory plant, particularly the feed intake system design and particle size control. The pioneering work on the fluidized combustion of coal carried out by the U.K. National Coal Board is now being made available by Combustion Systems Ltd. to help solve problems arising in the combustion of these other fuels.

• OSTI ID: 7044001
• Journal Information: AIChE Symp. Ser.; (United States), Journal Name: AIChE Symp. Ser.; (United States) Vol. 73:161; ISSN ACSSC
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
09 BIOMASS FUELS
090400* -- Solid Waste & Wood Fuels-- (-1989)
AIR POLLUTION
BROWN COAL
CARBONACEOUS MATERIALS
CHARS
CHEMICAL REACTIONS
COAL
COMBUSTION
ECONOMICS
EFFICIENCY
ENERGY RECOVERY
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
HEAT RECOVERY
INDUSTRIAL WASTES
LIGNITE
MUNICIPAL WASTES
OILS
ORGANIC COMPOUNDS
ORGANIC WASTES
OTHER ORGANIC COMPOUNDS
OXIDATION
POLLUTION
RECOVERY
SEWAGE
SOLID WASTES
WASTE OILS
WASTE PRODUCT UTILIZATION
WASTES