Modeling bituminous coal devolatilization in the electric grid and laminar entrained flow research reactors
Bituminous coal devolatilization data from an electric grid reactor and a laminar entrained flow reactor are modeled using two separate analytical derivations. The analyses are based on the assumption that the reactive volatile component of the pulverized bituminous coal will first escape from the coal particle's surface before coking into lighter volatiles and soot. Although this scenario is at variance with many previous devolatilization models, it provides a plausible explanation for the higher volatile yields achieved at moderate pressure in an entrained flow reactor as opposed to an electric grid apparatus. The analyses indicate that the electric grid reactor produces additional gas-phase mass transfer limitations for the heavy coal volatile fractions at pressures greater than 1 atm. 13 refs., 5 figs., 1 tab.
- Research Organization:
- Rockwell International Corp., Canoga Park, CA (USA). Rocketdyne Div.
- DOE Contract Number:
- AC21-78ET10328
- OSTI ID:
- 5850189
- Report Number(s):
- DOE/ET/10328-2016; ON: DE86001093
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010404 -- Coal
Lignite
& Peat-- Gasification
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
014000 -- Coal
Lignite
& Peat-- Combustion
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTORS
COAL
DEVOLATILIZATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
PULVERIZED FUELS