Abstract
The particle size distribution (PSD) significantly influences the flow and fluidization behaviors of powders, with the left section of PSD, indicating the portion of smaller particles, exerting dominant effects. Limited research has focused on exploring the impact of the left section of PSD on powder characteristics. Therefore, three types of Group C cohesive powders with the same diameter (20 μm) but different PSDs are derived from the same material. Results demonstrate that more abundant superfine components lead to diminished flow and fluidization quality. Finer particles exhibit greater potential for retaining gas within the bed, while realizing this potential requires specific auxiliary techniques (nanoparticle modulation), to reduce powder cohesiveness. A new parameter, termed “Left Span”, is proposed to depict the left portion of PSD. Sensitivity analysis reveals that flow and fluidization properties are more responsive to “Left Span” compared to span, which encompasses both the left and right sections of PSD.
| Original language | English |
|---|---|
| Article number | 119706 |
| Journal | Powder Technology |
| Volume | 439 |
| DOIs | |
| Publication status | Published - 15 Apr 2024 |
Keywords
- Cohesive powders
- Flowability
- Fluidizability
- Left span
- Particle size distribution
ASJC Scopus subject areas
- General Chemical Engineering