Fluidized Beds for Gas–Solid Reactions<sup>☆</sup>

Shabanian, Jaber; Chaouki, Jamal

doi:10.1002/9783527699483.ch16

Cited by 1 publication

(1 citation statement)

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“…The fractal theory is widely used to study the geometric and structural properties of FNPAs. [ 9–14 ] The structural complexity can be quantitatively expressed by the fractal dimension. Much of the early work was concerned with the fractal description of the whole structure of FNPAs with a single fractal dimension by the settling method.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the microstructure of fluidized nanoparticle agglomerates by TEM image analysis

Liu

Yang

2020

Can J Chem Eng

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In this paper, the hierarchical solid structures and multiscale pore structures inside fluidized nanoparticle agglomerates (FNPAs) are qualitatively revealed in the transmission electron microscope (TEM) images of ultrathin slices of solidified FNPAs from the bottom of the bed. The micromorphology of aggregates and simple agglomerates, the porosities of pores intra and inter simple agglomerates, and pore size distributions inside FNPAs are quantitatively analyzed by image analysis. The average fractal dimensions of aggregates of about 300 nm‐1000 nm and simple agglomerates of several micrometres are around 1.9 and 2.6 respectively. The pore structure of FNPAs is complex and heterogeneous and displays a multiscale feature. Nearly 50% of the pores intra simple agglomerates have sizes of tens of nanometers and more than half the pores between simple agglomerates are of micrometre scale. The porosities of the pores intra and inter simple agglomerates are about 0.82 and 0.85 respectively.

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Section: Introductionmentioning

confidence: 99%