Investigation on dynamic movement of cylindrical biomass particles in a fast fluidized bed

2022 ◽  
pp. 103397
Author(s):  
Fan Geng ◽  
Xinyue Feng ◽  
Haixu Teng ◽  
Longji Yuan ◽  
Jie Cai ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Dynamic Movement ◽  
Biomass Particles

scholarly journals A Mixing Behavior Study of Biomass Particles and Sands in Fluidized Bed Based on CFD-DEM Simulation

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1801 ◽  
Author(s):  
Heng Wang ◽  
Zhaoping Zhong
Keyword(s):  
Fluidized Bed ◽  
Three Dimensional ◽  
Vertical Direction ◽  
Gas Velocity ◽  
Three Dimensional Model ◽  
Large Size ◽  
Behavior Study ◽  
Mixing Behavior ◽  
Computational Fluid Dynamics Cfd ◽  
Biomass Particles

The present paper studied the mixing characteristics of biomass and sands in a fluidized bed. A three dimensional model is calculated on the basis of computational fluid dynamics (CFD) and the discrete element method (DEM), while the lab-scale experiments under similar conditions are conducted. To investigate the mixing behavior of biomass and sands, particle distribution, particles time averaged kinetic motion and the Lacey index are analyzed and the effects of gas velocity and biomass size are discussed. Gas velocity provides the basic motion for particle movement and biomass particles gain a lot more kinetic motion than sands due to their large size. The biomass mixing process in a horizontal direction is more sensitive to gas velocity than in a vertical direction. Biomass size could slightly affect the mixing quality and a well mixing in fluidized bed could be reached if the size of biomass to sands is smaller than 4 times.

Heat transfer in a tapered fluidized bed of biomass particles with pulsed gas flow

Particuology ◽  
2019 ◽  
Vol 42 ◽  
pp. 2-14 ◽  
Author(s):  
Dening Jia ◽  
Xiaotao Bi ◽  
C. Jim Lim ◽  
Shahab Sokhansanj ◽  
Atsushi Tsutsumi
Keyword(s):  
Heat Transfer ◽  
Fluidized Bed ◽  
Gas Flow ◽  
Biomass Particles

Fast pyrolysis of an ensemble of biomass particles in a fluidized bed

2010 ◽  
Vol 83 (4) ◽  
pp. 742-752 ◽  
Author(s):  
O. S. Rabinovich ◽  
V. A. Borodulya ◽  
L. M. Vinogradov ◽  
V. V. Korban
Keyword(s):  
Fluidized Bed ◽  
Fast Pyrolysis ◽  
Biomass Particles

Distribution of large biomass particles in a sand-biomass fluidized bed: Experiments and modeling

AIChE Journal ◽  
2014 ◽  
Vol 60 (3) ◽  
pp. 869-880 ◽  
Author(s):  
Farzam Fotovat ◽  
Jamal Chaouki ◽  
Jeffrey Bergthorson
Keyword(s):  
Fluidized Bed ◽  
Biomass Particles

Study on Fluidization Characteristics of Chinese Herbal Medicine Waste in a Fluidized Bed Reactor

2011 ◽  
Vol 138-139 ◽  
pp. 952-957 ◽  
Author(s):  
Tie Mi ◽  
Xin Ming Yu
Keyword(s):  
Herbal Medicine ◽  
Fluidized Bed ◽  
Chinese Herbal Medicine ◽  
Quartz Sand ◽  
Scale Up ◽  
Chinese Herbal ◽  
Fluidized Bed Gasifier ◽  
Set Up ◽  
Biomass Particles ◽  
Reliable Scale

Large amounts of Chinese herbal medicine wastes (CHMW) are produced in the process of processing and manufacturing traditional Chinese crude medicines. For CHMW, gasification in fluidized bed is a promising option. But, it is the difficult to fluidize CHMW particles alone in fluidized bed gasifier, especially for various size and shape of CHMW particles. It is very common to fluidize these kinds of biomass particles with sand, gives better defined fluidization behavior and a more reliable scale-up. However, not much is known about fluidization behavior of CHMW particles in fluidized bed. Therefore, a fluidized bed and its air distribution were designed and set up, the experimental study on fluidization characteristic of CHMW was done in the fluidize bed. Minimum fluidization velocity and the effect of bed height of CHMW/quartz sand mixtures on fluidization properties in air have been experimentally determined. The results showed that good fluidized could achieve with the additional of quartz sand. The results will be in favorite design and operation of CHMW gasification in fluidized bed.

Heat Transfer in a Pulsed Fluidized Bed of Biomass Particles

2017 ◽  
Vol 56 (13) ◽  
pp. 3740-3756 ◽  
Author(s):  
Dening Jia ◽  
Xiaotao Bi ◽  
C. Jim Lim ◽  
Shahab Sokhansanj ◽  
Atsushi Tsutsumi
Keyword(s):  
Heat Transfer ◽  
Fluidized Bed ◽  
Biomass Particles

Fluidization of Biomass Particles in a Gas−Solid Fluidized Bed

2008 ◽  
Vol 22 (6) ◽  
pp. 4170-4176 ◽  
Author(s):  
Wenqi Zhong ◽  
Baosheng Jin ◽  
Yong Zhang ◽  
Xiaofang Wang ◽  
Rui Xiao
Keyword(s):  
Fluidized Bed ◽  
Biomass Particles

Investigation on distribution characteristics of flexible biomass particles in a fluidized bed riser

Fuel ◽  
2020 ◽  
Vol 271 ◽  
pp. 117528 ◽  
Author(s):  
Fan Geng ◽  
Haixu Teng ◽  
Changgeng Gui ◽  
Yingchao Wang ◽  
Longji Yuan ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Distribution Characteristics ◽  
Biomass Particles

On the characteristic heating and pyrolysis time of thermally small biomass particles in a bubbling fluidized bed reactor

2020 ◽  
Vol 160 ◽  
pp. 312-322
Author(s):  
Antonio Soria-Verdugo ◽  
Mariano Rubio-Rubio ◽  
Elke Goos ◽  
Uwe Riedel
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Bubbling Fluidized Bed ◽  
Biomass Particles
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