Volatile production during preignition coal history. Quarterly progress report, September 1980-December 1980

Technical Report · Sun Feb 01 00:00:00 EST 1981

DOI:https://doi.org/10.2172/6591540· OSTI ID:6591540

The goal of this program is to determine the characteristic pyrolysis behavior of representative coals under laser heating. The use of 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 by 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 particles 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 evolution of the pyrolysis process can be determined. The data can then be correlated with a detailed kinetic and transport model, which will enable the representative kinetic parameters to be determined.

• Research Organization: Avco-Everett Research Lab., Inc., Everett, MA (USA)
• DOE Contract Number: AC22-80PC30291
• OSTI ID: 6591540
• Report Number(s): DOE/PC/30291-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
PYROLYSIS
GAS CHROMATOGRAPHY
HEATING RATE
LASERS
RADIANT HEAT TRANSFER
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHROMATOGRAPHY
DECOMPOSITION
ENERGY SOURCES
ENERGY TRANSFER
FOSSIL FUELS
FUELS
HEAT TRANSFER
MATERIALS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
010406* - Coal & Coal Products- Pyrolysis & Cracking- (-1987)