New Type of Draft Tube Spout-Fluid Bed. Part 2: Modeling and Design of the Acceleration Section of the Riser for the Pneumatic Transport of 1 mm Glass Spheres

2015 ◽  
Vol 54 (23) ◽  
pp. 6187-6198
Author(s):  
Howard Littman ◽  
John D. Paccione
Keyword(s):  
Draft Tube ◽  
Pneumatic Transport ◽  
Glass Spheres ◽  
Fluid Bed ◽  
New Type

New Type of Draft Tube Spout-Fluid Bed. Part 1: Hydraulic Transport of 1.94 mm Glass Particles in Water

2009 ◽  
Vol 48 (20) ◽  
pp. 9286-9298 ◽  
Author(s):  
Howard Littman ◽  
John D. Paccione ◽  
Joel L. Plawsky
Keyword(s):  
Draft Tube ◽  
Hydraulic Transport ◽  
Fluid Bed ◽  
New Type

Solids Circulation Flux and Gas Bypassing in a Pressurized Spout-fluid Bed with a Draft Tube

2008 ◽  
Vol 80 (5) ◽  
pp. 800-808 ◽  
Author(s):  
Rui Xiao ◽  
Mingyao Zhang ◽  
Baosheng Jin ◽  
Xiangdong Liu
Keyword(s):  
Draft Tube ◽  
Fluid Bed

Direct Comparison of Fluidized and Packed Bed Bioreactors for Bioremediation of an Air Pollutant

2007 ◽  
Vol 5 (1) ◽  
Author(s):  
Kyla Clarke ◽  
Gordon A Hill ◽  
Todd S. Pugsley
Keyword(s):  
Packed Bed ◽  
Air Pollutant ◽  
Fluidized Bed Bioreactor ◽  
Transfer Rates ◽  
Waste Gas ◽  
Glass Spheres ◽  
Fluidized Bioreactor ◽  
Volatile Organic ◽  
Fluid Bed ◽  
Maximum Elimination Capacity

A gas-solid fluidized bed bioreactor has been successfully used for the bioremediation of ethanol (a model volatile organic compound, VOC) contaminated air. A key objective of this fluidized bioreactor study was to compare the performance of fluid bed operation to packed bed operation. A fluid bed system increased homogeneity and improved upon operating problems such as plugging and channelling normally associated with packed bed bioreactors. The bioreactor bed was comprised of a mixture of moist sawdust particles and glass spheres. Depending on the superficial velocity of the waste gas stream, the bioreactor could be operated in either packed or fluidized mode. During fluid bed operation, the sawdust and glass sphere mixture was maintained in a bubbling/slugging regime. As expected, fluid bed operation demonstrated significantly higher mass transfer rates but the maximum elimination capacity was 75 g m-3sawdust h-1 as compared to 225 g m-3sawdust h-1 for packed bed operation. In packed bed mode, higher ethanol concentrations were used in order to have comparable ethanol loadings and this may have contributed to faster growth rates and thus faster bioremediation rates.

Encapsulation of Orange Essential Oil in a Spout-Fluid Bed Dryer with a Draft Tube on a Bed of Inert Solids

2014 ◽  
Vol 32 (14) ◽  
pp. 1718-1726 ◽  
Author(s):  
Claudia Velázquez-Contreras ◽  
Guillermo Osorio-Revilla ◽  
Tzayhri Gallardo-Velázquez
Keyword(s):  
Essential Oil ◽  
Draft Tube ◽  
Fluid Bed ◽  
Orange Essential Oil

Study on the flow behavior in spout-fluid bed with a draft tube of sub-millimeter grade silicon particles

2014 ◽  
Vol 237 ◽  
pp. 277-285 ◽  
Author(s):  
Guoliang Su ◽  
Guoqiang Huang ◽  
Ming Li ◽  
Chunjiang Liu
Keyword(s):  
Draft Tube ◽  
Flow Behavior ◽  
Fluid Bed ◽  
Grade Silicon ◽  
Silicon Particles

scholarly journals Development of new-type S draft tube for low-head axial-flow water turbine.

1991 ◽  
Vol 57 (536) ◽  
pp. 1305-1310
Author(s):  
Yukimaru SHIMIZU ◽  
Hiroyuki ISHIDA ◽  
Yoshiki FUTAKI ◽  
Takashi KUBOTA
Keyword(s):  
Draft Tube ◽  
Axial Flow ◽  
Water Turbine ◽  
Low Head ◽  
New Type

Study on the flow behavior of irregular plastic particles in a spout-fluid bed with a draft tube

2017 ◽  
Vol 36 (8) ◽  
pp. 945-954 ◽  
Author(s):  
Man Wu ◽  
Qingjie Guo ◽  
Meijie Zhao ◽  
Yizhong Chen
Keyword(s):  
Draft Tube ◽  
Flow Behavior ◽  
Fluid Bed
Sign in / Sign up

Export Citation Format

Share Document