Coal plasticity at high heating rates and temperatures

Technical Report · Thu Apr 01 00:00:00 EST 1993

DOI:https://doi.org/10.2172/6605906· OSTI ID:6605906

Gerjarusak, S; Peters, W A; Howard, J B

The results of the multiple independent parallel reaction (MIPR) kinetics model are reported and discussed. The MIPR model's results agree well with the data. The effects of holding temperature, heating rate, and coal type on plasticity are displayed by the model. However, the model does not address the secondary reactions forming higher molecular weight liquid hypothesized to be responsible for the initial rise in viscosity during solidification. The average standard error of estimates for the plastic period and maximum plasticity are 0.13 s and 317 Pa-s, respectively. These values are comparable to the measurement resolution of the plastometer (0.1 s and [plus minus] 200 Pa[center dot]s).

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-89PC89773
• OSTI ID: 6605906
• Report Number(s): DOE/PC/89773-12; ON: DE93013062
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
PLASTICITY
CHEMICAL REACTIONS
HEATING RATE
PROGRESS REPORT
TEMPERATURE DEPENDENCE
CARBONACEOUS MATERIALS
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
MECHANICAL PROPERTIES
010600* - Coal
Lignite
& Peat- Properties & Composition
010409 - Coal
Lignite
& Peat- Pyrolysis & Carbonization- (1987-)