CFD Study of Industrial FCC Risers: The Effect of Outlet Configurations on Hydrodynamics and Reactions | Zendy

Gabriela Cantarelli Lopes | Zendy; Leonardo Machado da Rosa | Zendy; Milton Mori | Zendy; José Roberto Nunhez | Zendy; W.P. Martigi | Zendy

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CFD Study of Industrial FCC Risers: The Effect of Outlet Configurations on Hydrodynamics and Reactions

Author(s) -

Gabriela Cantarelli Lopes,

Leonardo Machado da Rosa,

Milton Mori,

José Roberto Nunhez,

W.P. Martigi

Publication year - 2012

Publication title -

international journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1687-8078

pISSN - 1687-806X

DOI - 10.1155/2012/193639

Subject(s) - vaporization , computational fluid dynamics , flow (mathematics) , materials science , fluid catalytic cracking , cracking , mechanics , kinetic energy , catalysis , nuclear engineering , liquid phase , petroleum engineering , engineering , chemistry , thermodynamics , composite material , physics , biochemistry , quantum mechanics

Fluid catalytic cracking (FCC) riser reactors have complex hydrodynamics, which depend not only on operating conditions, feedstock quality, and catalyst particles characteristics, but also on the geometric configurations of the reactor. This paper presents a numerical study of the influence of different riser outlet designs on the dynamic of the flow and reactor efficiency. A three-dimensional, three-phase flow model and a four-lump kinetic scheme were used to predict the performance of the reactor. The phenomenon of vaporization of the liquid oil droplets was also analyzed. Results showed that small changes in the outlet configuration had a significant effect on the flow patterns and consequently, on the reaction yields

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