Fluidization of fine particles

Wang, Zhaolin; Kwauk, Mooson; Li, Hongzhong

doi:10.1016/s0009-2509(97)00280-7

Cited by 146 publications

(104 citation statements)

References 2 publications

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“…Unlike amine 36 impregnation or tethering, which often leads to reduction in the total pore volume and 37 specific surface area of the particles [24], molecular imprinting increases porosity of the 38 particles, leading to a higher rate of diffusion of CO 2 to active sites [23,25]. 39 However, bulk polymerisation is not suitable for large-scale production, because the resulting 40 bulk polymer must be crushed, ground, and sieved to obtain particles of optimum size, which 41 is time-consuming, laborious, and expensive, as only 30-40% of the particles can be 42 recovered. In addition, the produced particles have irregular shape and sharp edges and are 43 prone to attrition [25].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Production of molecularly imprinted polymer particles with amide-decorated cavities for CO 2 capture using membrane emulsification/suspension polymerisation

Nabavi

Vladisavljević

Wicaksono

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Introductionmentioning

confidence: 99%

“…Based on their size and density, the particles belong to Geldart Group A [39], referred to as aeratable particles. These particles can easily be fluidised, with homogeneous fluidisation at low superficial gas velocities and relatively small bubbles at higher velocities [40]. …”

mentioning

confidence: 99%

Production of molecularly imprinted polymer particles with amide-decorated cavities for CO 2 capture using membrane emulsification/suspension polymerisation

Nabavi

Vladisavljević

Wicaksono

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…FBGs have been used in several studies to disperse dry samples as sub-to super-micrometer size range aerosol particles (Guichard, 1976;Moreno and Blann, 1976;Boucher and Lua, 1982;Wang et al, 1998;Gauthier et al, 1999;Niedermeier et al, 2010;Clemente et al, 2013) with commercially available version such as the TSI Fluidized Bed Aerosol Generator (FBAG, model 3400A, TSI Inc.) or the small-scale powder disperser (SSPD,model 3343,TSI Inc.). Some issues with dispersion have become apparent from the use of these instruments.…”

Section: Introductionmentioning

confidence: 99%

Dry particle generation with a 3-D printed fluidized bed generator

Roesch

Cziczo

2017

Atmos. Meas. Tech.

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Abstract. Here we describe the design and testing of PRIZE (PRinted fluidIZed bed gEnerator), a compact fluidized bed aerosol generator manufactured using stereolithography (SLA) printing. Dispersing small quantities of powdered materials -due to either rarity or expense -is challenging due to a lack of small, low-cost dry aerosol generators. With this as motivation, we designed and built a generator that uses a mineral dust or other dry powder sample mixed with bronze beads that sit atop a porous screen. A particle-free airflow is introduced, dispersing the sample as airborne particles. Total particle number concentrations and size distributions were measured during different stages of the assembling process to show that the SLA 3-D printed generator did not generate particles until the mineral dust sample was introduced. Time-series measurements with Arizona Test Dust (ATD) showed stable total particle number concentrations of 10-150 cm −3 , depending on the sample mass, from the sub-to super-micrometer size range. Additional tests with collected soil dust samples are also presented. PRIZE is simple to assemble, easy to clean, inexpensive and deployable for laboratory and field studies that require dry particle generation.

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“…Fluidized beds are widely used in the chemical industry in a variety of reactive and non-reactive processes. Aerosol generation is a less common application but nevertheless fluidized beds have also been used for decades to generate aerosols of relatively coarse particles (Guichard 1976), and more recently for nanoparticles (Wang et al 1998;Yao et al 2002). Myojo et al (2009) reported the use of a fluidized bed to homogenize the supply of multi-walled carbon nanotubes from a rotating brush aerosol generator, giving concentrated carbon nanotube aerosols for limited experimental times (under 1 h of operation).…”

Section: Introductionmentioning

confidence: 99%

Fluidized Bed Generation of Stable Silica Nanoparticle Aerosols

Clemente¹,

Balas²,

Lobera³

et al. 2013

Aerosol Science and Technology

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A long-lasting generator of continuous silica nanoparticle aerosols based in a fluidized bed of glass beads coated with nanosized silica has been developed. The attrition resulting from the bubbling fluidized bed regime progressively detaches the silica coating from the glass beads, giving rise to a steady production of silica nanosized aerosols with median diameters from 100 to 250 nm depending on the initial size of the coating nanoparticles. Continuous aerosol production could be maintained for more than 12 h, and the nanoparticle concentration can be easily tuned in the range of 2000 to 14,000 #/cm 3 by adjusting the fluidization and/or dilution flow rates.

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Fluidization of fine particles

Cited by 146 publications

References 2 publications

Production of molecularly imprinted polymer particles with amide-decorated cavities for CO 2 capture using membrane emulsification/suspension polymerisation

Production of molecularly imprinted polymer particles with amide-decorated cavities for CO 2 capture using membrane emulsification/suspension polymerisation

Dry particle generation with a 3-D printed fluidized bed generator

Fluidized Bed Generation of Stable Silica Nanoparticle Aerosols

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