Work

On the inherent correlation between the fluidization and flow properties of cohesive powders

Year: 2024

Type: article

Abstract: In this study, we investigate the correlation between fluidization behavior and flow properties of 10 commercially available cohesive powders through fluidization and rotating drum experiments. The rotating drum was operated at high speeds to aerate the powder, creating flow fields and stress conditions comparable to those in gas–solid fluidized beds. We introduce a fluidization quality index (FQI) computed from X‐ray imaging, which addresses the limitations of conventional analyses for assessing fluidization quality of cohesive powders. By analyzing flow patterns, the FQI integrates gas holdup and its temporal variation, providing a reliable measure of fluidization quality. The findings establish a positive correlation between flowability and fluidization quality, demonstrating how flowability measurements can predict the effectiveness of mechanical vibration in enhancing fluidization characteristics. These results suggest that fast, user‐friendly flowability assessments in a rotating drum can effectively predict fluidization potential, contributing to process optimization and advancing fluidization studies for cohesive powders.

Source: AIChE Journal

DOI: 10.1002/aic.18706

Authors: P. Christian van der Sande, Kaiqiao Wu, Rens Kamphorst, Evert C. Wagner, Gabrie M. H. Meesters, J. Ruud van Ommen

Institutions: Delft University of Technology, Guangdong University of Technology

Language: English

Topic: Granular flow and fluidized beds

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,940

Funders: National Natural Science Foundation of China, Ministerie van Economische Zaken, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Ministerie van Economische Zaken en Klimaat