Título: | THERMO-CHEMICAL MODELING OF SELF-REDUCTION BASED SHAFT FURNACES | |||||||
Autor: |
JOSE HENRIQUE NOLDIN JUNIOR |
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Colaborador(es): |
JOSE CARLOS D ABREU - Orientador |
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Catalogação: | 28/NOV/2007 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | |||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=10881&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=10881&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.10881 | |||||||
Resumo: | ||||||||
The present work consists of a Tecnored ironmaking process
oriented
thermo-chemical modeling, built after a thorough assessment
of the process
phenomena and considering besides the peculiarities of the
reactor, a number of
applicable thermodynamic and operational aspects. In spite
of being a thermochemical
model, bench scale and pilot plant based kinetics
considerations have
been taken in account in order to estimate the extension of
the main reactions in
different parts of the furnace. The framework involved the
division of the furnace
in three main zones, namely Solid-state Reduction Zone
(SRZ), Softening and
Melting Zone (SMZ) and Dripping and Hearth Zone (DHZ). In
each of the zones
the existing chemical processes and overall process
phenomena have been
evaluated conditional to the global mass balance ruling the
process. The model
developed shall be used onwards to predict the behavior of
the process under
different conditions of raw material usage and operational
modes. Moreover, the
model shall be applied to compare the results of the
industrial plant (under
construction) with the available bench and pilot plant
data, with the intention of
gathering information to be used in the optimization of the
model and
subsequently the process. The results obtained thus far
show that the applied
modeling technique is a powerful tool for the global and
stage-wise analysis of the
process, confirming the advantageous performance of the
technology as far as
fuel-rate, thermal efficiency and environmental soundness
are concerned.
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