Thermodynamic optimization of fluidized catalytic cracking (FCC) units
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/5200 |
Resumo: | In this paper, a thermodynamic optimization procedure for FCC riser units has been developed. The formulation uses a 2D fluid flow and kinetic model to provide the necessary information for the optimization process. The thermodynamic analysis is based on the unit entropy generation minimization, i.e., the minimization of the destroyed exergy in the system. This kind of analysis has been widely used in power generation plants, with large benefits. It was verified that for any given catalyst mass flow rate, there exists an optimum value for the catalyst to oil mass flow rate ratio, COR, for maximum mass flow rate production of gasoline, or any other desired product. Next, the objective function (net exergy production rate) was maximized through the minimization of the destroyed exergy inside the FCC unit. The optimization was conducted with respect to the catalyst to oil ratio (COR). It is important to stress that all optima are sharp, i.e., for example with H/D = 50, the variation ofeE net is greater than 50%, calculated from ðeE net; max eE net; minÞ=eE net; max for 5 < COR < 25. Based on the lack of second law analysis related works for FCC plants in the technical literature and in view of the potential gains suggested by the results, the authors believe that thermodynamic optimization could bring new insight in the quest for better FCC plants. Therefore, a low computational time tool is made available for simulation, control, design and optimization of FCC units. |
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Thermodynamic optimization of fluidized catalytic cracking (FCC) unitsFluidizationPetroleumReactor analysisComputational chemistryExergetic analysisMathematical modelIn this paper, a thermodynamic optimization procedure for FCC riser units has been developed. The formulation uses a 2D fluid flow and kinetic model to provide the necessary information for the optimization process. The thermodynamic analysis is based on the unit entropy generation minimization, i.e., the minimization of the destroyed exergy in the system. This kind of analysis has been widely used in power generation plants, with large benefits. It was verified that for any given catalyst mass flow rate, there exists an optimum value for the catalyst to oil mass flow rate ratio, COR, for maximum mass flow rate production of gasoline, or any other desired product. Next, the objective function (net exergy production rate) was maximized through the minimization of the destroyed exergy inside the FCC unit. The optimization was conducted with respect to the catalyst to oil ratio (COR). It is important to stress that all optima are sharp, i.e., for example with H/D = 50, the variation ofeE net is greater than 50%, calculated from ðeE net; max eE net; minÞ=eE net; max for 5 < COR < 25. Based on the lack of second law analysis related works for FCC plants in the technical literature and in view of the potential gains suggested by the results, the authors believe that thermodynamic optimization could bring new insight in the quest for better FCC plants. Therefore, a low computational time tool is made available for simulation, control, design and optimization of FCC units.2015-07-30T17:20:19Z2015-07-30T17:20:19Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSOUZA, J. A. et al. Thermodynamic optimization of fluidized catalytic cracking (FCC) units. International Journal of Heat and Mass Transfer, v. 54, n. 5-6, p. 1187-1197, 2011. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0017931010006149>. Acesso em: 20 jul. 2015.0017-9310http://repositorio.furg.br/handle/1/520010.1016/j.ijheatmasstransfer.2010.10.034engSouza, Jeferson AvilaVargas, Jose Viriato CoelhoOrdonez, Juan CarlosMartignoni, Waldir PedroMeien, Oscar Felippe voninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-07-30T17:20:19Zoai:repositorio.furg.br:1/5200Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-07-30T17:20:19Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
title |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
spellingShingle |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units Souza, Jeferson Avila Fluidization Petroleum Reactor analysis Computational chemistry Exergetic analysis Mathematical model |
title_short |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
title_full |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
title_fullStr |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
title_full_unstemmed |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
title_sort |
Thermodynamic optimization of fluidized catalytic cracking (FCC) units |
author |
Souza, Jeferson Avila |
author_facet |
Souza, Jeferson Avila Vargas, Jose Viriato Coelho Ordonez, Juan Carlos Martignoni, Waldir Pedro Meien, Oscar Felippe von |
author_role |
author |
author2 |
Vargas, Jose Viriato Coelho Ordonez, Juan Carlos Martignoni, Waldir Pedro Meien, Oscar Felippe von |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Souza, Jeferson Avila Vargas, Jose Viriato Coelho Ordonez, Juan Carlos Martignoni, Waldir Pedro Meien, Oscar Felippe von |
dc.subject.por.fl_str_mv |
Fluidization Petroleum Reactor analysis Computational chemistry Exergetic analysis Mathematical model |
topic |
Fluidization Petroleum Reactor analysis Computational chemistry Exergetic analysis Mathematical model |
description |
In this paper, a thermodynamic optimization procedure for FCC riser units has been developed. The formulation uses a 2D fluid flow and kinetic model to provide the necessary information for the optimization process. The thermodynamic analysis is based on the unit entropy generation minimization, i.e., the minimization of the destroyed exergy in the system. This kind of analysis has been widely used in power generation plants, with large benefits. It was verified that for any given catalyst mass flow rate, there exists an optimum value for the catalyst to oil mass flow rate ratio, COR, for maximum mass flow rate production of gasoline, or any other desired product. Next, the objective function (net exergy production rate) was maximized through the minimization of the destroyed exergy inside the FCC unit. The optimization was conducted with respect to the catalyst to oil ratio (COR). It is important to stress that all optima are sharp, i.e., for example with H/D = 50, the variation ofeE net is greater than 50%, calculated from ðeE net; max eE net; minÞ=eE net; max for 5 < COR < 25. Based on the lack of second law analysis related works for FCC plants in the technical literature and in view of the potential gains suggested by the results, the authors believe that thermodynamic optimization could bring new insight in the quest for better FCC plants. Therefore, a low computational time tool is made available for simulation, control, design and optimization of FCC units. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 2015-07-30T17:20:19Z 2015-07-30T17:20:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SOUZA, J. A. et al. Thermodynamic optimization of fluidized catalytic cracking (FCC) units. International Journal of Heat and Mass Transfer, v. 54, n. 5-6, p. 1187-1197, 2011. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0017931010006149>. Acesso em: 20 jul. 2015. 0017-9310 http://repositorio.furg.br/handle/1/5200 10.1016/j.ijheatmasstransfer.2010.10.034 |
identifier_str_mv |
SOUZA, J. A. et al. Thermodynamic optimization of fluidized catalytic cracking (FCC) units. International Journal of Heat and Mass Transfer, v. 54, n. 5-6, p. 1187-1197, 2011. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0017931010006149>. Acesso em: 20 jul. 2015. 0017-9310 10.1016/j.ijheatmasstransfer.2010.10.034 |
url |
http://repositorio.furg.br/handle/1/5200 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
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1807384382423433216 |