Abstract
A comprehensive review for the hydrodynamic modelling of gas-solid two-phase flow in both risers and downers is presented in this paper. These hydrodynamic models for risers were classified as four types : ( I ) one-dimensional model; ( II ) core-annulus model; ( III ) tow-dimensional model; and ( IV ) multi-scale energy minimization model. Two kinds of hydrodynamic models, a one-dimensional hydrodynamic model and a two- dimensional turbulent model deduced from the fundamental dynamic theory, are also applied to predict the flow behaviors in downer reactors. The modelling results provide the theoretic basis for design, scale-up and optimization of downer reactors.
Original language | English |
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Pages (from-to) | 110-112 |
Number of pages | 3 |
Journal | Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology |
Volume | 13 |
Issue number | 1 |
Publication status | Published - 1997 |
Externally published | Yes |
Keywords
- Downers
- Gas-solid hydrodynamic modelling
- Risers
- κ-ε model
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering