Predicting the Complete Distributions of Volatile Products from Diverse Fuel Types with Flash Chain

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Title Predicting the Complete Distributions of Volatile Products from Diverse Fuel Types with Flash Chain
Creator Niksa, Stephen
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1999
Spatial Coverage presented at San Francisco, California
Abstract FLASHCHAIN is a reaction mechanism for the rapid devolatilization of solid fuels. This paper illustrates how the theory was recently expanded to predict the complete distribution of all major devolatilization products for a variety of fuel types, including any kind of coal, biomass, and petroleum coke. Noncondensible gases are now resolved into the primary hydrocarbon species (CH4, C2H9, C2H4, C3H9, C3H8), HCN, Hi, H2S, H20, C02, and CO. Tars are characterized by their complete elemental compositions (C/H/O/N/S) and their molecular weight distributions. Chars are characterized by their complete elemental compositions (C/H/O/N/S) and their sizes and densities. The theory also predicts the partitioning of chlorine and alkali species (Na and K). This paper also introduces a mechanism to describe the secondary pyrolysis of the primary devolatilization products, as occurs naturally at elevated temperatures in all combustion and gasification systems. During secondary volatiles. the volatiles are radically transformed, with complete conversion of tar into soot and conversion of all gases into H2, CH4, C2H2, HCN, H2S, CO, C02, and H20.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician Cliodhna Davis
Metadata Cataloger Kendra Yates
ARK ark:/87278/s6r2141h
Setname uu_afrc
Date Created 2012-05-15
Date Modified 2012-09-20
ID 12309
Reference URL https://collections.lib.utah.edu/ark:/87278/s6r2141h
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