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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2008.tde-02062008-161728
Document
Author
Full name
Luiz Cláudio Costa
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2008
Supervisor
Committee
Ramírez Fernandez, Francisco Javier (President)
Pires, Carlos Thadeu de Ávila
Takano, Cyro
Title in Portuguese
Parâmetros de controle do processo de coqueificação das baterias de fornos de coque da COSIPA.
Keywords in Portuguese
Automação
Controle de processos
Coqueria
Processo de coqueificação
Projeto de experimentos
Abstract in Portuguese
O controle de processo de uma planta de fabricação de coque depende de muitas variáveis particulares de cada planta. A busca de modelos de controle próprios torna-se necessário. O presente trabalho apresenta um projeto de experimentos, em forno piloto, para investigar a influência dos principais parâmetros de controle de fabricação do coque quanto à produção e consumo de calor e utilizá-los futuramente num modelo de automação do controle do processo dessa planta. O resultado do experimento apresentou significância estatística para os fatores temperatura e umidade da mistura enfornada e para as interações entre umidade e temperatura e entre umidade e granulometria com relação ao consumo de calor e também o fator temperatura com relação ao tempo líquido de coqueificação. Além do projeto de experimentos em forno piloto foi feito também um experimento em um forno industrial cuja metodologia mostrou-se adequada para um projeto em escala industrial. Com os dados dos experimentos obtiveram-se também equações matemáticas de previsão do consumo de calor e do tempo líquido de coqueificação.
Title in English
Cocking process control parameters of the COSIPA's coke plant.
Keywords in English
Automation
Coke plant
Coking process
Experimental design
Process control
Abstract in English
The process control of a coke plant depends on a lot of particular parameters. This work describes an experimental design in a pilot oven aiming at getting the influence of the main control factors of a coke oven battery, relating these parameters with production and heat consumption for future process control automation. The result of the experiment showed statistic significance for the factors temperature and coal blend moisture and for the interactions between temperature and coal blend moisture and between moisture and coal size on the heat consumption and also for the factor temperature on the net coking time. Theses relations can be used to develop coking control at an industrial plant. In addition to the design of experiments in a pilot oven, it was also made an experiment in an industrial battery oven whose methodology showed to be appropriated to an industrial design of experiment. With the experimental data it was possible to write mathematical equations for estimation of heating and net coking time.
 
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Publishing Date
2008-07-02
 
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