Effect of time/temperature history on char reactivity
Technical Report
·
OSTI ID:6958280
The effect of heating rate, pyrolysis atmosphere, maximum heat treatment temperature (HTT) in different pyrolysis atmospheres used during char preparation, pressure of char preparation and holding time at maximum HTT on char reactivity was studied using Wyoming Sub C coal on a thermogravimetric analyzer (TGA). All these factors were found to have a marked influence on char reactivity. Reactivity data are presented with rate as a function of carbon conversion and carbon conversion as a function of time or dimensionless time. 11 references, 17 figures, 1 table.
- Research Organization:
- Westinghouse Electric Corp., Madison, PA (USA). Synthetic Fuels Div.
- DOE Contract Number:
- AC21-82MC19122
- OSTI ID:
- 6958280
- Report Number(s):
- CONF-8405154-1; ON: DE84011499
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
ACTIVATION ENERGY
CARBONACEOUS MATERIALS
CHARS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COAL
DATA
DECOMPOSITION
ELEMENTS
ENERGY
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
GRAVIMETRIC ANALYSIS
HEATING RATE
HYDROGEN
INFORMATION
MATERIALS
NITROGEN
NONMETALS
NUMERICAL DATA
PRESSURE DEPENDENCE
PYROLYSIS
PYROLYSIS PRODUCTS
QUANTITATIVE CHEMICAL ANALYSIS
RESEARCH PROGRAMS
STEAM
SUBBITUMINOUS COAL
TEMPERATURE DEPENDENCE
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
VERY HIGH TEMPERATURE
010404 -- Coal
Lignite
& Peat-- Gasification
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
ACTIVATION ENERGY
CARBONACEOUS MATERIALS
CHARS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COAL
DATA
DECOMPOSITION
ELEMENTS
ENERGY
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
GRAVIMETRIC ANALYSIS
HEATING RATE
HYDROGEN
INFORMATION
MATERIALS
NITROGEN
NONMETALS
NUMERICAL DATA
PRESSURE DEPENDENCE
PYROLYSIS
PYROLYSIS PRODUCTS
QUANTITATIVE CHEMICAL ANALYSIS
RESEARCH PROGRAMS
STEAM
SUBBITUMINOUS COAL
TEMPERATURE DEPENDENCE
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
VERY HIGH TEMPERATURE