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Advisor(s)
Abstract(s)
Este trabalho teve como principal objetivo o estudo da simulação da unidade de
destilação atmosférica e a vácuo da fábrica de óleos base da Petrogal, permitindo
verificar que, uma vez conseguido um modelo num programa de simulação que traduz
o comportamento real de um dado processo, é possível sem riscos operacionais
avaliar o efeito da alteração das condições normais de funcionamento desse processo.
O trabalho foi orientado pelo Eng.º Carlos Reis, no que diz respeito à empresa,
e pelo Prof. Dr. Luís Silva, pelo ISEP.
O trabalho foi dividido em duas partes, sendo a primeira direcionada à
obtenção do novo crude a partir de dois crudes pesados e caracterização dessa
mistura. Já a segunda parte reside na refinação deste novo crude através da
plataforma Aspen Plus para obtenção do resíduo de vácuo, para posterior
processamento na coluna de discos rotativos usando um método de separação por
extração liquido-liquido.
Estudaram-se as propriedades físicas dos fluidos e verificou-se que na
destilação atmosférica as curvas de destilação encontram-se muito próximas
comparativamente com os resultados obtidos pela empresa, enquanto na destilação a
vácuo os valores encontram-se mais afastados, apresentando uma variação de 30ºC a
100ºC em relação aos valores obtidos pelo Petro-Sim.
Com a finalidade de cumprir um dos objetivos em falta, irão ser realizadas
futuramente simulações no extrator de discos rotativos para otimização do processo
para crudes pesados, sendo os resultados facultados, posteriormente, à Petrogal.
Durante a realização do trabalho foi atingido um modelo real representativo da
unidade de destilação atmosférica e a vácuo da Petrogal, podendo obter-se resultados
para qualquer tipo de crude, fazendo apenas variar o assay da corrente de
alimentação.
The main objective of this work was studying the simulation of an atmospheric and a vacuum distillation unit from the facility of base oils, named Petrogal, allowing you to check that once achieved a model in a simulation program that reflects the actual behavior of a given process, it is possible to evaluate the effect of changing the typical operation conditions of this process, without operational risks. The work was guided by Engineer Carlos Reis, regarding the company, and Prof. Dr. Luis Silva regarding ISEP. This study was divided into two parts, being the first directed towards obtaining the new crude from two heavy crudes and characterization of this mixture. The second part resides in refining this new crude through the Aspen Plus platform for obtaining the vacuum residue for further processing in the rotating disk column using a method of separation by liquid-liquid extraction. The physical properties of the fluids were studied and it was observed that in the atmospheric distillation the distillation curves were very similar in comparison with the results obtained by the company, whereas the vacuum distillation results were further apart, showing a variation of 30ºC to 100ºC in comparison to the values obtained by Petro-Sim. In order to fulfill one of the missing objectives, future simulations will be performed in rotating disks extractor to optimize the process for heavy crudes, with the results being provided to Petrogal subsequently. During the realization of this work, a real representative model of an atmospheric and a vacuum distillation unit was achieved and can give results for any type of crude, varying only the assay of the crude feed stream.
The main objective of this work was studying the simulation of an atmospheric and a vacuum distillation unit from the facility of base oils, named Petrogal, allowing you to check that once achieved a model in a simulation program that reflects the actual behavior of a given process, it is possible to evaluate the effect of changing the typical operation conditions of this process, without operational risks. The work was guided by Engineer Carlos Reis, regarding the company, and Prof. Dr. Luis Silva regarding ISEP. This study was divided into two parts, being the first directed towards obtaining the new crude from two heavy crudes and characterization of this mixture. The second part resides in refining this new crude through the Aspen Plus platform for obtaining the vacuum residue for further processing in the rotating disk column using a method of separation by liquid-liquid extraction. The physical properties of the fluids were studied and it was observed that in the atmospheric distillation the distillation curves were very similar in comparison with the results obtained by the company, whereas the vacuum distillation results were further apart, showing a variation of 30ºC to 100ºC in comparison to the values obtained by Petro-Sim. In order to fulfill one of the missing objectives, future simulations will be performed in rotating disks extractor to optimize the process for heavy crudes, with the results being provided to Petrogal subsequently. During the realization of this work, a real representative model of an atmospheric and a vacuum distillation unit was achieved and can give results for any type of crude, varying only the assay of the crude feed stream.
Description
Keywords
Crude Destilação Simulação Aspen Plus Distillation Simulation