Abstract
The current work presents the modeling of the riser of Fluid Catalytic Cracking (FCC) Units. The flow and the cracking reactions are considered two-phased (fluid and solid), one-dimensional and steady. Mass, momentum and energy equation are admitted for fluid and solid phases. The finite difference method was used for the solution of the ordinary differential equations. A six lump kinetics model is employed to evaluate the gasoil, gasoline, LPG, fuel gas, light cycle oil (LCO) and coke lumps. A feedstock vaporization approach is described. Comparisons of the six with a four lump model was conducted and of the vaporization model with instantaneous vaporization were conducted. The results reveal the vaporization has influence on the product composition at the riser outlet. Besides, the kinetics models also is very important on the cracking reactions. (author)
Negrao, Cezar Otaviano Ribeiro;
Baldessar, Fabio
[1]
- Universidade Tecnologica Federal do Parana (UTFPR), Curitiba, PR (Brazil). Programa de Pos-graduacao em Engenharia Mecanica e de Materiais (PPGEM). Lab. de Ciencias Termicas (LACIT)
Citation Formats
Negrao, Cezar Otaviano Ribeiro, and Baldessar, Fabio.
Simulation of fluid catalytic cracking risers - a six lump model.
Brazil: N. p.,
2006.
Web.
Negrao, Cezar Otaviano Ribeiro, & Baldessar, Fabio.
Simulation of fluid catalytic cracking risers - a six lump model.
Brazil.
Negrao, Cezar Otaviano Ribeiro, and Baldessar, Fabio.
2006.
"Simulation of fluid catalytic cracking risers - a six lump model."
Brazil.
@misc{etde_21261106,
title = {Simulation of fluid catalytic cracking risers - a six lump model}
author = {Negrao, Cezar Otaviano Ribeiro, and Baldessar, Fabio}
abstractNote = {The current work presents the modeling of the riser of Fluid Catalytic Cracking (FCC) Units. The flow and the cracking reactions are considered two-phased (fluid and solid), one-dimensional and steady. Mass, momentum and energy equation are admitted for fluid and solid phases. The finite difference method was used for the solution of the ordinary differential equations. A six lump kinetics model is employed to evaluate the gasoil, gasoline, LPG, fuel gas, light cycle oil (LCO) and coke lumps. A feedstock vaporization approach is described. Comparisons of the six with a four lump model was conducted and of the vaporization model with instantaneous vaporization were conducted. The results reveal the vaporization has influence on the product composition at the riser outlet. Besides, the kinetics models also is very important on the cracking reactions. (author)}
place = {Brazil}
year = {2006}
month = {Jul}
}
title = {Simulation of fluid catalytic cracking risers - a six lump model}
author = {Negrao, Cezar Otaviano Ribeiro, and Baldessar, Fabio}
abstractNote = {The current work presents the modeling of the riser of Fluid Catalytic Cracking (FCC) Units. The flow and the cracking reactions are considered two-phased (fluid and solid), one-dimensional and steady. Mass, momentum and energy equation are admitted for fluid and solid phases. The finite difference method was used for the solution of the ordinary differential equations. A six lump kinetics model is employed to evaluate the gasoil, gasoline, LPG, fuel gas, light cycle oil (LCO) and coke lumps. A feedstock vaporization approach is described. Comparisons of the six with a four lump model was conducted and of the vaporization model with instantaneous vaporization were conducted. The results reveal the vaporization has influence on the product composition at the riser outlet. Besides, the kinetics models also is very important on the cracking reactions. (author)}
place = {Brazil}
year = {2006}
month = {Jul}
}