A review on CFD simulation of biomass pyrolysis in fluidized bed reactors with emphasis on particle-scale models

2022 ◽  
pp. 105433
Author(s):  
Hao Luo ◽  
Xiaobao Wang ◽  
Xinyan Liu ◽  
Xiaoqin Wu ◽  
Xiaogang Shi ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Cfd Simulation ◽  
Fluidized Bed Reactors ◽  
Biomass Pyrolysis ◽  
Scale Models

scholarly journals Multi-scale CFD simulation of hydrodynamics and cracking reactions in fixed fluidized bed reactors

2015 ◽  
Vol 5 (4) ◽  
pp. 255-261 ◽  
Author(s):  
Jin H. Zhang ◽  
Zhen B. Wang ◽  
Hui Zhao ◽  
Yuan Y. Tian ◽  
Hong H. Shan ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Cfd Simulation ◽  
Fluidized Bed Reactors ◽  
Multi Scale

Comparison of CFD Simulation and Simplified Modeling of a Fluidized Bed CO2 Capture Reactor

2016 ◽  
Vol 14 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Daoyin Liu ◽  
Zhonglin Zhang ◽  
Yaming Zhuang ◽  
Xiaoping Chen
Keyword(s):  
Fluidized Bed ◽  
Flow Model ◽  
Cfd Simulation ◽  
Plug Flow ◽  
Fluidized Bed Reactors ◽  
Cfd Model ◽  
Two Phase ◽  
Multiphase Cfd ◽  
Reactor Models ◽  
Dem Model

AbstractCO2 capture using solid sorbents in fluidized bed reactors is a promising technology. The multiphase CFD model is increasingly developed to study the reactors, but it is difficult to model all the realistic details and it requires significant computational time. In this study, both the multiphase CFD model (i.e., CFD-DEM model coupled with reaction) and the simplified reactor models (i.e., plug flow model and bubbling two-phase model) are developed for modeling a fluidized bed CO2 capture reactor. The comparisons are made at different gas velocities from fixed bed to fluidized bed. The DEM based model reveals a detailed view of CO2 adsorption process with particle flow dynamics, based on which the assumptions in the simplified models can be evaluated. The plug flow model predictions generally show similar trends to the DEM model but there are quantitative differences; thus, it can be used to determine the reactor performance limit. The bubbling two-phase model gives better predictions than the plug flow model because the effect of bubbles on the inter-phase mass transfer and reaction is included. In the future, a closer combination of the multiphase CFD simulation and the simplified reactor models will likely be an efficient design method of CO2 capture fluidized bed reactors.

CFD simulation of fluidized bed reactors for polyolefin production – A review

2014 ◽  
Vol 20 (6) ◽  
pp. 3919-3946 ◽  
Author(s):  
M.J.H. Khan ◽  
M.A. Hussain ◽  
Z. Mansourpour ◽  
N. Mostoufi ◽  
N.M. Ghasem ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Cfd Simulation ◽  
Fluidized Bed Reactors
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