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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2009.tde-07082009-150008
Document
Author
Full name
Valmir José Camolesi
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2009
Supervisor
Committee
Nascimento, Cláudio Augusto Oller do (President)
Giudici, Reinaldo
Moro, Lincoln Fernando Lautenschlager
Title in Portuguese
Caracterização do querosene através da espectroscopia de infravermelho próximo.
Keywords in Portuguese
Espectroscopia infravermelha
Querosene
Redes neurais
Abstract in Portuguese
Ensejou-se obter a caracterização do Querosene via espectroscopia de infravermelho próximo com o objetivo de se instalar um analisador NIR (Near InfraRed) na unidade de processo de destilação industrial, permitindo a otimização do processo de produção. Foi construído um banco de dados espectrais (NIR) e das propriedades: densidade D20/4oC, destilação (PIE, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% e PFE), enxofre total, ponto de fulgor, ponto de congelamento e viscosidade a -20oC e a 40oC durante um período de 8 meses. A partir dos dados experimentais foram construídos modelos de inferência para as propriedades do querosene através dos métodos PLS (Partial Least Squares) e redes neurais. Inferências a partir de dados operacionais foram também elaboradas para comparação. As inferências construídas com os dados espectrais apresentaram resultados melhores que as obtidas com as variáveis operacionais.
Title in English
Characterization of kerosene by near infrared spectroscopy.
Keywords in English
Kerosene
Near infeared spectroscopy
Neural networks
Abstract in English
This work aimed to obtain the characterization of Kerosene by Near Infrared Spectroscopy (NIR) with the intention to install a NIR analyzer at an industrial process of distillation, allowing optimization of the production process. A database of spectral data (NIR) was built and another with the properties: density D20/4oC, distillation (IBP, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and FBP), total sulfur, flash point, freezing point and viscosity at -20oC and 40oC for a period of 8 months. Models of inference to kerosene properties by the PLS (Partial Least Squares) and neural networks methods were built up from experimental data. Inferences from operational data were also compiled for comparison. As a conclusion of this work, inferences from spectroscopy data were better than those from operational data.
 
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Publishing Date
2009-08-13
 
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