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Mathematical model of the SL/RN direct reduction process

A mathematical model has been developed to predict the operating behaviour of an SL/RN direct reduction kiln from a knowledge of the main process variables. The model is based on steady state principles and is capable of quantitatively describing the complex chemical reactions in the kiln such as reduction, Boudouard reaction, coal volatilization and combustion in the freeboard together with the mass and heat flows. Output from the model is in the form of axial profiles of gas, solids and wall temperatures, and concentrations in both the gas and the solid phases. Results from the model are in good agreement with measurements made on the 100 ton per day pilot kiln at the Steel Company of Canada. The influence of important process variables such as the type of coal, ore, degree of reduction, throughput etc. has been examined and predictions made regarding the operation of large commercial SL/RN kilns for sponge iron production. / Applied Science, Faculty of / Materials Engineering, Department of / Graduate

Identiferoai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/19902
Date January 1976
CreatorsVenkateswaran, V.
Source SetsUniversity of British Columbia
LanguageEnglish
Detected LanguageEnglish
TypeText, Thesis/Dissertation
RightsFor non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.

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