Results 231 to 240 of about 2,397,022 (298)
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Fluidization of nanoagglomerates in a rotating fluidized bed
AIChE Journal, 2006AbstractAgglomerates of nanoparticles were fluidized in a rotating fluidized bed (RFB) system at different rotating speeds corresponding to 10, 20, 30 and 40 times the gravity force (9.8 m/s2). The powders, fumed silica Aerosil® R974, Aerosil® R972 and Aeroxide® TiO2 P25, with a primary particle size of 12, 16 and 21 nm, respectively, form micron sized
Jose Quevedo +5 more
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Group C+ particles: Enhanced flow and fluidization of fine powders with nano-modulation
Chemical Engineering and Science, 2019The main challenge in the flow and fluidization of Geldart Group C particles is their cohesive nature due to strong interparticle forces. The “nanoparticle modulation” technique is adopted to reduce the interparticle forces of Group C particles and thus ...
Yandaizi Zhou, Jesse Zhu
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Fluidization and Fluidized Bed
2019This chapter introduces a multiscale method for modeling gas–solid flows, from steady-state modeling for quick engineering design, continuum model for industrial scale reactor simulation, discrete particle method for lab-scale reactor simulation to direct numerical simulation for exploring the underlying mechanics.
Xinhua Liu +5 more
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Chemical Engineering and Science, 2019
Minimum fluidization velocity of binary mixtures is one of the most important parameters when applying an Air Dense Medium Fluidized Bed for dry coal beneficiation.
Zhijie Fu +5 more
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Minimum fluidization velocity of binary mixtures is one of the most important parameters when applying an Air Dense Medium Fluidized Bed for dry coal beneficiation.
Zhijie Fu +5 more
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2020
Liquid fluidization can be encountered in industrial practice in a variety of processes including particle classification and separation and backwashing of filter media. In any fluidized system, overall bed height changes with fluid velocity. This chapter introduces the correlation between voidage and fluid velocity and presents some observations on ...
Di Felice R., Di Renzo A.
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Liquid fluidization can be encountered in industrial practice in a variety of processes including particle classification and separation and backwashing of filter media. In any fluidized system, overall bed height changes with fluid velocity. This chapter introduces the correlation between voidage and fluid velocity and presents some observations on ...
Di Felice R., Di Renzo A.
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Fuel processing technology, 2018
In this paper, the design principle of Fluidization State Specification (FSS) is reviewed and its applications in CFB boiler are introduced. In the early 2000s, FSS design principle was proposed to determine the fluidization state in the upper furnace as
R. Cai +5 more
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In this paper, the design principle of Fluidization State Specification (FSS) is reviewed and its applications in CFB boiler are introduced. In the early 2000s, FSS design principle was proposed to determine the fluidization state in the upper furnace as
R. Cai +5 more
semanticscholar +1 more source
Powder Technology, 2018
In the energy conversion process, the inert bed material such as sand with spherical shape is usually added to the fluidized bed for the proper fluidization of the non-spherical biomass particles.
Huaqing Ma, Yongzhi Zhao
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In the energy conversion process, the inert bed material such as sand with spherical shape is usually added to the fluidized bed for the proper fluidization of the non-spherical biomass particles.
Huaqing Ma, Yongzhi Zhao
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Investigating the fluidization of disk-like particles in a fluidized bed using CFD-DEM simulation
Advanced Powder Technology, 2018Fluidization of monodispersed disk-like particles with different aspect ratios in the fluidized bed is simulated by CFD-DEM, with disk-like particles being modeled by the super-ellipsoids.
Huaqing Ma, Yongzhi Zhao
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On partial fluidization in rotating fluidized beds
AIChE Journal, 1987In a rotating fluidized bed, unlike in a conventional fluidized bed, the granules are fluidized layer by layer from the (inner) free surface outward at increasing radius as the gas velocity is increased. This is a very significant and interesting phenomenon and is extremely important in the design of these fluidized beds.
J. Kao, R. Pfeffer, G. I. Tardos
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