Abstract
Thermal cracking reactions are not selective in prime products such as naphtha and LPG, which favors the formation of coke and fuel gas in the RISER reactor of the FCC. For this reason, thermal cracking is gradually being reduced and, consequently, the participation of catalytic cracking in this process is being increased. One of the ways to minimize thermal cracking in the reactor is to promote flow the closest possible to plug flow, through downward flow reactors, more commonly known as DOWNER or DOWNFLOW. Innumerable studies already done at CENPES in hot pilot units have demonstrated the attractiveness of this technology, through the utilization of cold demonstration units and through a complete knowledge of fluidization and Engineering techniques at PETROBRAS. The DOWNFLOW presents significant conversion gains, of 2.2% wt, basically due to the increase in gasoline and LPG production, resulting in a specific profitability increase of 6.7 US$/t of feed. This is possible due to the low selectivity of the DOWNFLOW to the coke. This technology offers a promising alternative for the future, keeping in mind the gradual increase in the participation of national petroleum from the Campos Basin in the list of feeds processed at the FCC units. (author)
Pinho, Andrea de Rezende;
Huziwara, Wilson Kenzo;
[1]
Ramos, Jose Geraldo Furtado;
Silva, Mauro
[2]
- PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES). Tecnologias de FCC
- PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES). Engenharia Basica de FCC, Coque e Separacao
Citation Formats
Pinho, Andrea de Rezende, Huziwara, Wilson Kenzo, Ramos, Jose Geraldo Furtado, and Silva, Mauro.
Downflow - the FCC of the future; Downflow - o FCC do futuro.
Brazil: N. p.,
2002.
Web.
Pinho, Andrea de Rezende, Huziwara, Wilson Kenzo, Ramos, Jose Geraldo Furtado, & Silva, Mauro.
Downflow - the FCC of the future; Downflow - o FCC do futuro.
Brazil.
Pinho, Andrea de Rezende, Huziwara, Wilson Kenzo, Ramos, Jose Geraldo Furtado, and Silva, Mauro.
2002.
"Downflow - the FCC of the future; Downflow - o FCC do futuro."
Brazil.
@misc{etde_20436163,
title = {Downflow - the FCC of the future; Downflow - o FCC do futuro}
author = {Pinho, Andrea de Rezende, Huziwara, Wilson Kenzo, Ramos, Jose Geraldo Furtado, and Silva, Mauro}
abstractNote = {Thermal cracking reactions are not selective in prime products such as naphtha and LPG, which favors the formation of coke and fuel gas in the RISER reactor of the FCC. For this reason, thermal cracking is gradually being reduced and, consequently, the participation of catalytic cracking in this process is being increased. One of the ways to minimize thermal cracking in the reactor is to promote flow the closest possible to plug flow, through downward flow reactors, more commonly known as DOWNER or DOWNFLOW. Innumerable studies already done at CENPES in hot pilot units have demonstrated the attractiveness of this technology, through the utilization of cold demonstration units and through a complete knowledge of fluidization and Engineering techniques at PETROBRAS. The DOWNFLOW presents significant conversion gains, of 2.2% wt, basically due to the increase in gasoline and LPG production, resulting in a specific profitability increase of 6.7 US$/t of feed. This is possible due to the low selectivity of the DOWNFLOW to the coke. This technology offers a promising alternative for the future, keeping in mind the gradual increase in the participation of national petroleum from the Campos Basin in the list of feeds processed at the FCC units. (author)}
journal = []
issue = {1}
volume = {45}
journal type = {AC}
place = {Brazil}
year = {2002}
month = {Mar}
}
title = {Downflow - the FCC of the future; Downflow - o FCC do futuro}
author = {Pinho, Andrea de Rezende, Huziwara, Wilson Kenzo, Ramos, Jose Geraldo Furtado, and Silva, Mauro}
abstractNote = {Thermal cracking reactions are not selective in prime products such as naphtha and LPG, which favors the formation of coke and fuel gas in the RISER reactor of the FCC. For this reason, thermal cracking is gradually being reduced and, consequently, the participation of catalytic cracking in this process is being increased. One of the ways to minimize thermal cracking in the reactor is to promote flow the closest possible to plug flow, through downward flow reactors, more commonly known as DOWNER or DOWNFLOW. Innumerable studies already done at CENPES in hot pilot units have demonstrated the attractiveness of this technology, through the utilization of cold demonstration units and through a complete knowledge of fluidization and Engineering techniques at PETROBRAS. The DOWNFLOW presents significant conversion gains, of 2.2% wt, basically due to the increase in gasoline and LPG production, resulting in a specific profitability increase of 6.7 US$/t of feed. This is possible due to the low selectivity of the DOWNFLOW to the coke. This technology offers a promising alternative for the future, keeping in mind the gradual increase in the participation of national petroleum from the Campos Basin in the list of feeds processed at the FCC units. (author)}
journal = []
issue = {1}
volume = {45}
journal type = {AC}
place = {Brazil}
year = {2002}
month = {Mar}
}