Intrinsic kinetics of oxidation of residual organic carbon in rapidly pyrolyzed oil shale

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Publication Type report
Other Author Fujimoto, F. D.; Braun, R. L.; Taylor, R. W.; Morris, C. J.
Title Intrinsic kinetics of oxidation of residual organic carbon in rapidly pyrolyzed oil shale
Date 1986-11
Description The intrinsic kinetics of reaction of oxygen with carbonaceous residue in rapidly pyrolyzed Colorado oil shale were determined by a series of isothermal fluidized-bed experiments in the temperature range of 384 to 474°C. The char was produced from 100 L/Mg (24 gal/ton) oil shale by rapid heating to 530°C and isothermal pyrolysis for 5 min. The oxidation rate, determined by mass spectrometer measurements of evolved CO and C02, has second-order dependence on the unreacted char. The activation energy is 19.4 kcal/mole and the pre-exponential factor is 1.33 s~ Pa"" , assuming first-order dependence on oxygen. Rate measurements at temperatures higher than approximately 475°C are precluded by interference of C02 that is evolved from carbonate capture of S0_. A lower heating rate during pyrolysis (i.e., a lower effective pyrolysis temperature) significantly decreases subsequent oxidation reactivity of char.
Type Text
Publisher Lawrence Livermore Laboratory
Subject oxidation of organic carbon; residual organic carbon; intrinsic kinetics; pyrolyzed oil shale; oil shale; oil shale retorting; modified in-situ retorting
Language eng
Bibliographic Citation Fujimoto, F. D., Braun, R. L., Taylor, R. W., & Morris, C. J. (1986). Intrinsic kinetics of oxidation of residual organic carbon in rapidly pyrolyzed oil shale. (Preprint: UCRL-95661). Lawrence Livermore Labratory.
Relation Has Part Preprint: UCRL-95661
Rights Management (c)Lawrence Livermore Laboratory
Format Medium application/pdf
Format Extent 105,423 bytes
Identifier ir-eua/id/3012
Source DSpace at ICSE
ARK ark:/87278/s6c56jxn
Setname ir_eua
Date Created 2013-05-15
Date Modified 2015-03-26
ID 214080
Reference URL https://collections.lib.utah.edu/ark:/87278/s6c56jxn
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