Numerical study on the influence of center gas supply device on gas-solid residence time distribution in COREX shaft furnace

2021 ◽  
pp. 1-9
Author(s):  
Heng Zhou ◽  
Kun Xu ◽  
Yifan Hu ◽  
Shengli Wu ◽  
Mingyin Kou ◽  
...  
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Numerical Study ◽  
Shaft Furnace ◽  
Corex Shaft Furnace ◽  
Solid Residence Time ◽  
Gas Supply

Residence time distribution in multiorifice baffled tubes: A numerical study

2017 ◽  
Vol 118 ◽  
pp. 259-269 ◽  
Author(s):  
D. González-Juárez ◽  
J.P. Solano ◽  
R. Herrero-Martín ◽  
A.P. Harvey
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Numerical Study

Solid residence time distribution in a cross-flow dense fluidized bed with baffles

2019 ◽  
Vol 200 ◽  
pp. 320-335 ◽  
Author(s):  
Leina Hua ◽  
Hu Zhao ◽  
Jun Li ◽  
Qingshan Zhu ◽  
Junwu Wang
Keyword(s):  
Fluidized Bed ◽  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Cross Flow ◽  
Solid Residence Time

scholarly journals Influence of center gas supply device on gas–solid flow in COREX shaft furnace through DEM–CFD model

2020 ◽  
Vol 18 (5-6) ◽  
Author(s):  
Heng Zhou ◽  
Shuyu Wang ◽  
Binbin Du ◽  
Mingyin Kou ◽  
Zhiyong Tang ◽  
...  
Keyword(s):  
Gas Flow ◽  
Shaft Furnace ◽  
Middle Zone ◽  
Cfd Model ◽  
Gas Velocity ◽  
Gas Distribution ◽  
Particle Segregation ◽  
Solid Flow ◽  
Corex Shaft Furnace ◽  
Gas Supply

AbstractIn order to develop the central gas flow in COREX shaft furnace, a new installment of center gas supply device (CGD) is designed. In this work, a coupled DEM–CFD model was employed to study the influence of CGD on gas–solid flow in COREX shaft furnace. The particle descending velocity, particle segregation behaviour, void distribution and gas distribution were investigated. The results show that the CGD affects the particles descending velocity remarkably as the burden falling down to the slot. Particle segregation can be observed under the inverse ‘V’ burden profile, and the influence of CGD on the particle segregation is unobvious on the whole, which causes the result that the voidage is slightly changed. Although the effect of CGD on solid flow is not significant, the gas flow in shaft furnace has an obvious change. Compared with the condition without CGD, in the case with CGD, the gas velocity is improved significantly, especially in the middle zone of the furnace, which further promotes the center gas distribution. Meanwhile, the pressure drop in the furnace with the installation of CGD is increased partly.

scholarly journals A novel technique for residence time distribution (RTD) measurements in solids unit operations

2021 ◽  
Vol 32 (2) ◽  
pp. 611-618
Author(s):  
Atena Dehghani Kiadehi ◽  
Mikel Leturia ◽  
Franco Otaola ◽  
Aissa Ould-Dris ◽  
Khashayar Saleh
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Novel Technique ◽  
Unit Operations
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