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- Title
Numerical study of counter-current gas-solid flow in FCC disengager and stripper.
- Authors
Jia, Dening; Zhao, Hui; Berrouk, Abdallah S.; Yang, Chaohe; Shan, Honghong
- Abstract
Detailed study of the gas-solid flow in FCC reactor was performed using Euler-Euler two-fluid model. Two distinct regions were identified in the reactor vessel based on differences in catalyst void fraction and fluid flow: the dilute phase congested disengager region and dense phase congested stripper region. Velocity profile revealed an inert yet random flow pattern in the disengager and a counter-current type of flow with a pronounced radial unevenness in the stripper. Residence time distribution proved that a small portion of oil vapour could linger over 5 min before exiting despite that the apparatus may have a significantly shorter average residence time.
- Subjects
FLUIDS; FLUID mechanics; FLUID friction; OPTICAL properties of fluids; HYDROSTATICS
- Publication
Canadian Journal of Chemical Engineering, 2014, Vol 92, Issue 1, p176
- ISSN
0008-4034
- Publication type
Article
- DOI
10.1002/cjce.21811