Flammability characteristics of treated coals
- Dept. of Mechanical and Industrial Engineering, Univ. of Illinois at Urbana-Champaign, Urbana, IL (US)
In this paper the effects of two processes used to treat coal on the flammability characteristics of the coal are presented. Experiments were conducted on an Entrained Dust Flow Facility which supports a stationary premixed coal dust and air flame. The facility is designed to provide access for thermocouple so that detailed axial and radial temperature profiles of the coal flames can be used to investigate the flame structure. Flame speeds of the coal and air mixtures were determined based on the inlet velocity of the flow and the temperature maps. Flame speed increases of over 35 percent were observed as a direct result of an aggregate flotation process which reduced the ash content and the average size of the coal and increased the volatile content and heating value. Partially devolatilized chars were burned to simulate the use of a low-volatile solid by-product of a gasification process.
- OSTI ID:
- 5438937
- Journal Information:
- Journal of Energy Resources Technology; (United States), Journal Name: Journal of Energy Resources Technology; (United States) Vol. 114:1; ISSN 0195-0738; ISSN JERTD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mixing and gasification of coal in entrained flow systems. Quarterly technical progress report No. 2, July 1--September 30, 1977
Mathematical simulation of a two stage entrained flow coal gasifier
Related Subjects
014000* -- Coal
Lignite
& Peat-- Combustion
AGGLOMERATION
AIR
ALKANES
ASH CONTENT
CARBONACEOUS MATERIALS
COAL
COMBUSTION PROPERTIES
DISPERSIONS
ENERGY SOURCES
FLAMES
FLAMMABILITY
FLUIDS
FOSSIL FUELS
FUELS
GASES
HYDROCARBONS
MATERIALS
MATTER
MEASURING INSTRUMENTS
METHANE
MIXTURES
ORGANIC COMPOUNDS
SIZE
TEMPERATURE MEASUREMENT
THERMOCOUPLES
VELOCITY
VOLATILE MATTER