Volatile production during preignition coal heating. Quarterly progress report, April 1981 - June 1981

Technical Report · Wed Jul 01 00:00:00 EDT 1981

DOI:https://doi.org/10.2172/6212749· OSTI ID:6212749

The goal of this program is to determine the characteristic pyrolysis behavior of representative coals under laser heating. The use of a CO/sub 2/ laser enables a controllable heating rate to be given to the coal particles as they pass through the laser beam. The development of such a laser heating diagnostic should prove to be an extremely valuable tool for generation of a data base necessary for the future design of coal burning facilities. The experimental configuration is illustrated. A dilute coal/gas stream, surrounded aby an inert shield flow is passed through a laser beam from an Avco HPL CO/sub 2/ laser. Under a prescribed flux density, and thus heating rate, the particle pyrolyse. The gaseous products are sampled and subsequently analyzed (primarily by gas chromatography) for carbon conversion. Particle temperature is to be monitored by a two-color pyrometer and particle velocity by laser Doppler velocimeter, by which means, evolution of the pyrolysis process can be determined.

• Research Organization: Avco-Everett Research Lab., Inc., Everett, MA (USA)
• DOE Contract Number: AC22-80PC30291
• OSTI ID: 6212749
• Report Number(s): DOE/PC/30291-3; ON: DE81025485
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
LASER-RADIATION HEATING
DEVOLATILIZATION
GAS CHROMATOGRAPHY
PYROLYSIS
PYROMETERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHROMATOGRAPHY
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HEATING
MATERIALS
MEASURING INSTRUMENTS
PLASMA HEATING
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
010406* - Coal & Coal Products- Pyrolysis & Cracking- (-1987)