Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Sérgio G. Oliveira"'
Autor:
A. R. C Ouza, Sérgio G. Oliveira, Fábio S. Liporace, Eduardo M. Queiroz, B. C. G Assis, A. P Melo, André L.H. Costa
Publikováno v:
Blucher Chemical Engineering Proceedings.
Dynamic Optimization of the Flow Rate Distribution in Heat Exchanger Networks for Fouling Mitigation
Autor:
Julia C. Lemos, Bruna Carla Gonçalves Assis, Sérgio G. Oliveira, Eduardo M. Queiroz, Fábio S. Liporace, Fernando L.P. Pessoa, André L.H. Costa
Publikováno v:
Industrial & Engineering Chemistry Research. 54:6497-6507
Heat exchanger networks are structures composed of a set of heat exchangers interconnected in order to reduce utilities consumption. During the network operation, heat exchangers may present a decrease of their thermal effectiveness caused by fouling
Autor:
Fernando L.P. Pessoa, André L.H. Costa, Sérgio G. Oliveira, Fábio S. Liporace, Caroline de O. Gonçalves, Eduardo M. Queiroz
Publikováno v:
Applied Thermal Engineering. 73:3-14
This paper addresses the optimization of cleaning schedules of heat exchangers in crude preheat trains in petroleum refineries. The optimization approach is based on a heuristic scheme composed of a set of movements according to a greedy rationale. E
Autor:
Eduardo M. Queiroz, Fábio S. Liporace, Sérgio G. Oliveira, Fernando L.P. Pessoa, André L.H. Costa, Bruna C.G. Assis, Julia C. Lemos
Publikováno v:
Applied Thermal Engineering. 58:605-614
This paper addresses the identification of the optimal set of heat exchangers to be cleaned during a plant maintenance shutdown. The proposed methodology is based on the resolution of a mixed-integer linear programming problem which allows the identi
Autor:
Bruna C.G. Assis, André L.H. Costa, Eduardo M. Queiroz, Sérgio G. Oliveira, Fábio S. Liporace, Caroline de O. Gonçalves, Fernando L.P. Pessoa
Publikováno v:
Chemical Engineering Research and Design. 91:1517-1526
Crude preheat trains are heat exchanger networks which heat the crude oil stream in the petroleum distillation using hot product streams and pumparounds. The final heating step is executed in a furnace. The thermal efficiency of this process is stron
Autor:
Sérgio G. Oliveira, Viviane B. G. Tavares, Fernando Pessoa, Fábio S. Liporace, Eduardo M. Queiroz, Joana L. Borges, André L.H. Costa
Publikováno v:
Heat Transfer Engineering. 34:683-691
Several fouling mitigation techniques depend on the capacity of predicting fouling rates. Therefore, the identification of accurate fouling rate models is an important task. Crude fouling rates are usually evaluated through empirical or semiempirical
Autor:
Fábio S. Liporace, Sérgio G. Oliveira
Publikováno v:
Heat Transfer Engineering. 28:193-201
The issue of fouling in preheat trains of crude oil distillation units in Petrobras's refineries is a major concern—especially now, as heavier Brazilian crudes with higher asphaltene content are being refined. As the efficiency of the preheat train
Autor:
S. Santos, Luis Jose Cavadas, T. Rosa, Sérgio G. Oliveira, C. Azevedo, Mario Cesar Mello Massa de Campos, R. Grizante, L. Junior, F. Ribeiro, Mario M. Machado, B. Crippa
Publikováno v:
Day 1 Tue, October 27, 2015.
The offshore platforms, located at great distances from the coast, pose many challenges to maintain and increase reliability of critical equipment, in order to decrease operational and maintenance costs. The difference between planned and non-planned
Autor:
Sérgio G. Oliveira, Fernando L.P. Pessoa, Fábio S. Liporace, Eduardo M. Queiroz, C. de O. Gonçalves, André L.H. Costa
Publikováno v:
Anais do XX Congresso Brasileiro de Engenharia Química.
Autor:
Fernando Elias de Freitas Fadel, Sérgio G. Oliveira, Fabio Lopes Ribeiro, Kaku Saito, Alex Furtado Teixeira, Patricia Rodrigues Ventura, Herbert Campos Golcalves Teixeira, Mario M. Machado, Luis Jose Cavadas, Rodrigo Cesar Dalbrieux De Carvalho, Oscar F. von Meien, Cristhian Alberto Celestino Cortez, Mario Cesar Mello Massa de Campos, Jose Augusto Matias, Paulo Sergio Barbosa Rodrigues, Fábio S. Liporace
Publikováno v:
All Days.
Abstract Asset management tools related with instruments, control loops, equipment and processes, are important to reduce production costs of offshore platforms. These technologies can help to identify potential problems in advance regarding equipmen