Modeling of coal pyrolysis kinetics

Journal Article · Thu Sep 01 04:00:00 UTC 1994 · AIChE Journal (American Institute of Chemical Engineers); (United States)

DOI:https://doi.org/10.1002/aic.690400910· OSTI ID:6920197

Liliedahl, T; Sjoestroem, K ^[1]

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1. Inst foer Kemisk Teknologi, Stockholm (Sweden)

Four different coals were instantaneously introduced into a laboratory-scale pyrolysis chamber at various temperatures, and their devolatilization profiles were analyzed with respect to kinetics. The experimental setup consisted of a gas chromatograph (GC) with a pyrolysis unit, an empty column, and a detector. Detector signals were digitalized and stored for further handling. Normally, 1,024 values were sampled at 250 Hz. For deconvolving the true instantaneous devolatilization from the observed detector response, the residence time distribution was compensated for. An empirical model approach is developed to correlate the total devolatilization rates when instantaneously introducing a particle in a constant temperature environment. The model is also extended to pyrolysis application.

• OSTI ID: 6920197
• Journal Information: AIChE Journal (American Institute of Chemical Engineers); (United States), Journal Name: AIChE Journal (American Institute of Chemical Engineers); (United States) Vol. 40:9; ISSN 0001-1541; ISSN AICEAC
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010409* -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
CARBONACEOUS MATERIALS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
DECOMPOSITION
DEVOLATILIZATION
ENERGY SOURCES
EQUATIONS
FOSSIL FUELS
FUELS
KINETIC EQUATIONS
KINETICS
MATERIALS
MATHEMATICAL MODELS
PYROLYSIS
REACTION KINETICS
THERMOCHEMICAL PROCESSES